./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_append_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/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_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/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_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/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 3a59620f668b7c0725f940bc66e10441fbb56ee9b9fb687de4bd19a3f12eaeda --- 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 01:09:29,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:09:29,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:09:29,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:09:29,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:09:29,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:09:29,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:09:29,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:09:29,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:09:29,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:09:29,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:09:29,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:09:29,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:09:29,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:09:29,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:09:29,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:09:29,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:09:29,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:09:29,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:09:29,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:09:29,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:09:29,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:09:29,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:09:29,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:09:29,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:09:29,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:09:29,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:09:29,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:09:29,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:09:29,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:09:29,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:09:29,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:09:29,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:09:29,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:09:29,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:09:29,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:09:29,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:09:29,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:09:29,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:09:29,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:09:29,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:09:29,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:09:29,897 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:09:29,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:09:29,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:09:29,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:09:29,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:09:29,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:09:29,901 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:09:29,901 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:09:29,902 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:09:29,902 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:09:29,904 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:09:29,904 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:09:29,904 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:09:29,905 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:09:29,905 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:09:29,906 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:09:29,906 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:09:29,906 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:09:29,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:09:29,908 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:09:29,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:09:29,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:09:29,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:09:29,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:09:29,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:09:29,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:09:29,910 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:09:29,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:09:29,911 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:09:29,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:09:29,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:09:29,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:09:29,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:29,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:09:29,914 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:09:29,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:09:29,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:09:29,915 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:09:29,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:09:29,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:09:29,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:09:29,916 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_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a59620f668b7c0725f940bc66e10441fbb56ee9b9fb687de4bd19a3f12eaeda [2022-11-22 01:09:30,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:09:30,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:09:30,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:09:30,318 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:09:30,319 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:09:30,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/list-simple/dll2n_append_equal.i [2022-11-22 01:09:33,551 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:09:33,922 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:09:33,929 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/sv-benchmarks/c/list-simple/dll2n_append_equal.i [2022-11-22 01:09:33,942 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/data/ff40a8e4a/7f766f95f1144894a4bb95514ccc84b9/FLAG2d302928c [2022-11-22 01:09:33,959 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/data/ff40a8e4a/7f766f95f1144894a4bb95514ccc84b9 [2022-11-22 01:09:33,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:09:33,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:09:33,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:33,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:09:33,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:09:33,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:33" (1/1) ... [2022-11-22 01:09:33,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d23e298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:33, skipping insertion in model container [2022-11-22 01:09:33,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:33" (1/1) ... [2022-11-22 01:09:33,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:09:34,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:09:34,353 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_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/sv-benchmarks/c/list-simple/dll2n_append_equal.i[24333,24346] [2022-11-22 01:09:34,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:34,370 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:09:34,415 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_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/sv-benchmarks/c/list-simple/dll2n_append_equal.i[24333,24346] [2022-11-22 01:09:34,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:34,446 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:09:34,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34 WrapperNode [2022-11-22 01:09:34,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:34,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:34,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:09:34,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:09:34,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,497 INFO L138 Inliner]: procedures = 127, calls = 37, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 122 [2022-11-22 01:09:34,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:34,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:09:34,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:09:34,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:09:34,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,556 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:09:34,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:09:34,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:09:34,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:09:34,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (1/1) ... [2022-11-22 01:09:34,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:34,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:34,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:09:34,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:09:34,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:09:34,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:09:34,691 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-22 01:09:34,692 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-22 01:09:34,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:09:34,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:09:34,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:09:34,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:09:34,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:09:34,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:09:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:09:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:09:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:09:34,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:09:34,869 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:09:34,872 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:09:35,193 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:09:35,259 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:09:35,259 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 01:09:35,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:35 BoogieIcfgContainer [2022-11-22 01:09:35,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:09:35,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:09:35,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:09:35,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:09:35,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:33" (1/3) ... [2022-11-22 01:09:35,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba87bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:35, skipping insertion in model container [2022-11-22 01:09:35,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:34" (2/3) ... [2022-11-22 01:09:35,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba87bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:35, skipping insertion in model container [2022-11-22 01:09:35,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:35" (3/3) ... [2022-11-22 01:09:35,275 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_append_equal.i [2022-11-22 01:09:35,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:09:35,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:09:35,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:09:35,379 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;@921ee9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:09:35,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:09:35,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:09:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:09:35,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:35,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:35,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:35,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:35,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1994480883, now seen corresponding path program 1 times [2022-11-22 01:09:35,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:35,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883751303] [2022-11-22 01:09:35,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:35,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:36,015 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 01:09:36,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:36,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883751303] [2022-11-22 01:09:36,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883751303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:36,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:36,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:09:36,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432474610] [2022-11-22 01:09:36,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:36,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:09:36,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:36,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:09:36,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:36,094 INFO L87 Difference]: Start difference. First operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:09:36,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:36,184 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2022-11-22 01:09:36,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:09:36,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-22 01:09:36,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:36,196 INFO L225 Difference]: With dead ends: 45 [2022-11-22 01:09:36,197 INFO L226 Difference]: Without dead ends: 22 [2022-11-22 01:09:36,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:09:36,207 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:36,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 45 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:09:36,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-22 01:09:36,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2022-11-22 01:09:36,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:09:36,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2022-11-22 01:09:36,263 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 12 [2022-11-22 01:09:36,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:36,265 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2022-11-22 01:09:36,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:09:36,265 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2022-11-22 01:09:36,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 01:09:36,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:36,269 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:36,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:09:36,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:36,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:36,271 INFO L85 PathProgramCache]: Analyzing trace with hash -927493003, now seen corresponding path program 1 times [2022-11-22 01:09:36,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:36,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014432402] [2022-11-22 01:09:36,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:36,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:09:36,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:36,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014432402] [2022-11-22 01:09:36,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014432402] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:36,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154408987] [2022-11-22 01:09:36,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:36,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:36,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:36,613 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:36,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:09:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:36,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:09:36,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:36,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:09:36,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154408987] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:09:36,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1701636417] [2022-11-22 01:09:36,958 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-22 01:09:36,958 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:09:36,963 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:09:36,970 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:09:36,971 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:09:37,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,096 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:09:37,098 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 01:09:37,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,144 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:09:37,145 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 01:09:37,247 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 01:09:37,254 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 01:09:37,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,275 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 25 treesize of output 19 [2022-11-22 01:09:37,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,290 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 25 treesize of output 19 [2022-11-22 01:09:37,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,322 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 01:09:37,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:09:37,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:37,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:09:37,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:37,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:37,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,812 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 219 [2022-11-22 01:09:37,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:37,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:37,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:37,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 210 [2022-11-22 01:09:37,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:37,957 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:09:37,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 348 treesize of output 347 [2022-11-22 01:09:38,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:38,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:38,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 115 [2022-11-22 01:09:38,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 156 [2022-11-22 01:09:38,182 INFO L321 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2022-11-22 01:09:38,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 90 [2022-11-22 01:09:38,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:38,252 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 78 treesize of output 50 [2022-11-22 01:09:38,288 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 59 treesize of output 33 [2022-11-22 01:09:38,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:09:38,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:38,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:38,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-22 01:09:38,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-22 01:09:38,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:38,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:38,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:38,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:38,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:38,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-22 01:09:38,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-22 01:09:38,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:38,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-22 01:09:38,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:09:38,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:38,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-22 01:09:39,044 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:09:39,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:09:39,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:39,073 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 23 treesize of output 17 [2022-11-22 01:09:39,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:39,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:39,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:39,104 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 48 treesize of output 32 [2022-11-22 01:09:39,175 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:09:39,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:09:39,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:39,206 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 23 treesize of output 17 [2022-11-22 01:09:39,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:39,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:39,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:39,227 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 48 treesize of output 32 [2022-11-22 01:09:39,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:39,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:09:39,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:39,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:09:39,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:09:39,933 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:40,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:40,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:09:40,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:09:40,291 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:40,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:40,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:40,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:40,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-22 01:09:40,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:40,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:40,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:40,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:40,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-22 01:09:40,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:40,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:09:40,489 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:09:40,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-22 01:09:40,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:40,504 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 23 treesize of output 17 [2022-11-22 01:09:40,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:40,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:09:40,566 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:09:40,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-22 01:09:40,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:40,583 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 23 treesize of output 17 [2022-11-22 01:09:40,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:40,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:40,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:40,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:41,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:41,141 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:09:41,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 226 treesize of output 214 [2022-11-22 01:09:41,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:41,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:41,171 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:09:41,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 221 treesize of output 207 [2022-11-22 01:09:41,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:41,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:41,212 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:09:41,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 221 treesize of output 207 [2022-11-22 01:09:41,509 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-22 01:09:41,672 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:09:45,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1701636417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:45,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:09:45,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4, 4] total 16 [2022-11-22 01:09:45,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563689397] [2022-11-22 01:09:45,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:45,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:09:45,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:45,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:09:45,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:09:45,448 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 13 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:09:46,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:46,128 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-11-22 01:09:46,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:09:46,129 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2022-11-22 01:09:46,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:46,130 INFO L225 Difference]: With dead ends: 33 [2022-11-22 01:09:46,130 INFO L226 Difference]: Without dead ends: 30 [2022-11-22 01:09:46,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:09:46,131 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 42 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:46,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 32 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:09:46,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-22 01:09:46,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2022-11-22 01:09:46,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:09:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-22 01:09:46,139 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 18 [2022-11-22 01:09:46,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:46,139 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-22 01:09:46,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:09:46,139 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-22 01:09:46,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-22 01:09:46,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:46,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:46,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:09:46,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-22 01:09:46,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:46,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:46,342 INFO L85 PathProgramCache]: Analyzing trace with hash -927548989, now seen corresponding path program 1 times [2022-11-22 01:09:46,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:46,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609702308] [2022-11-22 01:09:46,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:46,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:09:46,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:46,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609702308] [2022-11-22 01:09:46,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609702308] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:46,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14255536] [2022-11-22 01:09:46,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:46,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:46,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:46,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:46,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:09:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:46,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:09:46,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:46,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:46,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:09:46,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14255536] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:09:46,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1699239970] [2022-11-22 01:09:46,652 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-22 01:09:46,652 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:09:46,652 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:09:46,653 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:09:46,653 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:09:46,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,709 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:09:46,709 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 01:09:46,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,743 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:09:46,743 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 01:09:46,782 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 01:09:46,787 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 01:09:46,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,805 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 01:09:46,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,814 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 25 treesize of output 19 [2022-11-22 01:09:46,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,825 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 25 treesize of output 19 [2022-11-22 01:09:46,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:09:46,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:46,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:46,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:09:46,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:46,993 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 30 treesize of output 11 [2022-11-22 01:09:47,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:47,014 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 31 treesize of output 30 [2022-11-22 01:09:47,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:47,041 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 31 treesize of output 30 [2022-11-22 01:09:47,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:09:47,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:47,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:47,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:47,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:09:47,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:47,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:09:47,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:47,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:09:47,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:47,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:47,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-22 01:09:47,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-22 01:09:47,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:09:47,438 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:09:47,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:09:47,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,454 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 23 treesize of output 17 [2022-11-22 01:09:47,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,469 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 48 treesize of output 32 [2022-11-22 01:09:47,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:09:47,647 INFO L321 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-11-22 01:09:47,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 272 treesize of output 294 [2022-11-22 01:09:47,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:47,663 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 218 treesize of output 184 [2022-11-22 01:09:47,704 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:47,723 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 100 treesize of output 76 [2022-11-22 01:09:47,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:47,990 INFO L321 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-11-22 01:09:47,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 159 treesize of output 157 [2022-11-22 01:09:48,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,022 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:09:48,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 36 [2022-11-22 01:09:48,085 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 11 treesize of output 3 [2022-11-22 01:09:48,099 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 01:09:48,100 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 24 [2022-11-22 01:09:48,110 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 8 treesize of output 4 [2022-11-22 01:09:48,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:48,121 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:48,123 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:48,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 103 [2022-11-22 01:09:48,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 56 [2022-11-22 01:09:48,313 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 01:09:48,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,324 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 18 treesize of output 12 [2022-11-22 01:09:48,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:48,342 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:48,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:48,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-22 01:09:48,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:09:48,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 137 [2022-11-22 01:09:48,518 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:09:48,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:09:48,531 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 01:09:48,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,546 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 47 treesize of output 31 [2022-11-22 01:09:48,576 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:09:48,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-22 01:09:48,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,587 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 23 treesize of output 17 [2022-11-22 01:09:48,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:48,616 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:09:48,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:48,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:48,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:48,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:48,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:48,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:48,989 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 01:09:49,075 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-22 01:09:49,176 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:09:50,913 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '426#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 01:09:50,913 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:09:50,913 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:09:50,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-11-22 01:09:50,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54535278] [2022-11-22 01:09:50,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:09:50,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:09:50,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:50,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:09:50,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:09:50,915 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-22 01:09:50,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:50,968 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2022-11-22 01:09:50,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:09:50,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 18 [2022-11-22 01:09:50,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:50,969 INFO L225 Difference]: With dead ends: 42 [2022-11-22 01:09:50,969 INFO L226 Difference]: Without dead ends: 25 [2022-11-22 01:09:50,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:09:50,971 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:50,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 53 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:09:50,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-22 01:09:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-22 01:09:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-11-22 01:09:50,980 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 18 [2022-11-22 01:09:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:50,980 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-11-22 01:09:50,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-22 01:09:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-11-22 01:09:50,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 01:09:50,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:50,981 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:50,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 01:09:51,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:51,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:51,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:51,187 INFO L85 PathProgramCache]: Analyzing trace with hash 832503083, now seen corresponding path program 2 times [2022-11-22 01:09:51,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:51,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096498548] [2022-11-22 01:09:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:51,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:51,678 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:09:51,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:51,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096498548] [2022-11-22 01:09:51,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096498548] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:51,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462155732] [2022-11-22 01:09:51,679 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:09:51,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:51,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:51,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:51,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:09:51,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:09:51,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:09:51,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-22 01:09:51,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:51,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:09:52,092 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 11 treesize of output 7 [2022-11-22 01:09:52,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:52,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:09:52,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:09:52,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:09:52,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:52,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:09:52,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:09:52,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462155732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:52,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:09:52,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 22 [2022-11-22 01:09:52,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774665366] [2022-11-22 01:09:52,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:52,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:09:52,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:09:52,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:09:52,245 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:09:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:52,713 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2022-11-22 01:09:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:09:52,713 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-22 01:09:52,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:52,714 INFO L225 Difference]: With dead ends: 33 [2022-11-22 01:09:52,714 INFO L226 Difference]: Without dead ends: 31 [2022-11-22 01:09:52,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2022-11-22 01:09:52,715 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 48 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:52,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 57 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:09:52,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-22 01:09:52,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2022-11-22 01:09:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:52,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2022-11-22 01:09:52,726 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 24 [2022-11-22 01:09:52,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:52,726 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2022-11-22 01:09:52,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:09:52,727 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2022-11-22 01:09:52,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:09:52,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:52,727 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:52,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:09:52,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:52,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:52,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:52,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1171636344, now seen corresponding path program 1 times [2022-11-22 01:09:52,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:52,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543366949] [2022-11-22 01:09:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:52,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:09:53,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:09:53,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543366949] [2022-11-22 01:09:53,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543366949] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:53,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722549179] [2022-11-22 01:09:53,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:53,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:53,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:53,381 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:53,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:09:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:53,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-22 01:09:53,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:53,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-22 01:09:53,751 WARN L859 $PredicateComparison]: unable to prove that (exists ((|node_create_~temp~0#1.base| Int)) (and (<= (+ |node_create_~temp~0#1.base| 1) |c_#StackHeapBarrier|) (exists ((v_ArrVal_716 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |node_create_~temp~0#1.base| v_ArrVal_716))))) is different from true [2022-11-22 01:09:53,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:53,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2022-11-22 01:09:53,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-22 01:09:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2022-11-22 01:09:53,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:53,861 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_719 (Array Int Int)) (|v_node_create_~temp~0#1.base_23| Int)) (or (not (= 0 (select (select (store |c_#memory_$Pointer$.base| |v_node_create_~temp~0#1.base_23| v_ArrVal_719) |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (not (< |v_node_create_~temp~0#1.base_23| |c_#StackHeapBarrier|)))) is different from false [2022-11-22 01:09:53,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722549179] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:09:53,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [448592056] [2022-11-22 01:09:53,865 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-22 01:09:53,866 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:09:53,866 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:09:53,866 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:09:53,867 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:09:53,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:53,898 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:09:53,898 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 01:09:53,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:53,929 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:09:53,930 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 01:09:53,960 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 01:09:53,964 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 01:09:53,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:53,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:53,996 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 01:09:54,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,005 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 25 treesize of output 19 [2022-11-22 01:09:54,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,014 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 25 treesize of output 19 [2022-11-22 01:09:54,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:54,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:09:54,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:09:54,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:09:54,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:54,154 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 31 treesize of output 30 [2022-11-22 01:09:54,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,165 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 30 treesize of output 11 [2022-11-22 01:09:54,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:54,183 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 31 treesize of output 30 [2022-11-22 01:09:54,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:09:54,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:54,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:54,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:54,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:09:54,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:54,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:09:54,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:09:54,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:54,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:09:54,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-22 01:09:54,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:54,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 160 [2022-11-22 01:09:54,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:09:54,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:09:54,600 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 01:09:54,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 175 [2022-11-22 01:09:54,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,612 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 157 treesize of output 127 [2022-11-22 01:09:54,665 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:09:54,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 66 [2022-11-22 01:09:54,676 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 11 treesize of output 3 [2022-11-22 01:09:54,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,695 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-22 01:09:54,695 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 46 [2022-11-22 01:09:54,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,945 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:09:54,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 102 [2022-11-22 01:09:54,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:54,965 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-22 01:09:54,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 93 [2022-11-22 01:09:54,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:09:54,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:55,003 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:55,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,205 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-22 01:09:55,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 132 [2022-11-22 01:09:55,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,223 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:09:55,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 77 [2022-11-22 01:09:55,240 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 15 treesize of output 7 [2022-11-22 01:09:55,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:55,257 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:09:55,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:09:55,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-22 01:09:55,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 137 [2022-11-22 01:09:55,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:09:55,426 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:09:55,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:09:55,437 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 01:09:55,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,450 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 47 treesize of output 31 [2022-11-22 01:09:55,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:09:55,509 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 01:09:55,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 202 treesize of output 179 [2022-11-22 01:09:55,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:09:55,519 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 161 treesize of output 131 [2022-11-22 01:09:55,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:55,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:55,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:55,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:09:55,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:55,826 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 01:09:55,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-11-22 01:09:56,052 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-22 01:09:56,149 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:09:58,734 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '845#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (not (= |ULTIMATE.start_main_~count~0#1| (+ |ULTIMATE.start_main_~len~0#1| 1))) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~ptr~0#1.base| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 01:09:58,735 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:09:58,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:09:58,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 20 [2022-11-22 01:09:58,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557813106] [2022-11-22 01:09:58,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:09:58,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-22 01:09:58,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:09:58,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-22 01:09:58,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1016, Unknown=2, NotChecked=130, Total=1260 [2022-11-22 01:09:58,736 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-22 01:09:59,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:59,094 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2022-11-22 01:09:59,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:09:59,094 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 26 [2022-11-22 01:09:59,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:59,095 INFO L225 Difference]: With dead ends: 31 [2022-11-22 01:09:59,095 INFO L226 Difference]: Without dead ends: 23 [2022-11-22 01:09:59,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=158, Invalid=1330, Unknown=2, NotChecked=150, Total=1640 [2022-11-22 01:09:59,097 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 80 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:59,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 100 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 146 Invalid, 0 Unknown, 26 Unchecked, 0.2s Time] [2022-11-22 01:09:59,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-22 01:09:59,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-22 01:09:59,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:09:59,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2022-11-22 01:09:59,106 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 26 [2022-11-22 01:09:59,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:59,107 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2022-11-22 01:09:59,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-22 01:09:59,107 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-22 01:09:59,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 01:09:59,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:59,108 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:59,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:09:59,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:59,311 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:59,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:59,311 INFO L85 PathProgramCache]: Analyzing trace with hash -524387403, now seen corresponding path program 1 times [2022-11-22 01:09:59,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:59,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376075123] [2022-11-22 01:09:59,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:59,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:10:00,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:00,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376075123] [2022-11-22 01:10:00,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376075123] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:00,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513119692] [2022-11-22 01:10:00,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:00,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:00,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:00,140 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:00,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:10:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:00,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-22 01:10:00,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:00,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 4 [2022-11-22 01:10:00,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:00,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 17 [2022-11-22 01:10:00,734 INFO L321 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2022-11-22 01:10:00,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 41 [2022-11-22 01:10:00,758 INFO L321 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2022-11-22 01:10:00,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 42 [2022-11-22 01:10:00,770 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 17 treesize of output 9 [2022-11-22 01:10:00,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-22 01:10:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:10:00,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:01,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513119692] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:01,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2008722331] [2022-11-22 01:10:01,633 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-22 01:10:01,633 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:10:01,634 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:10:01,634 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:10:01,634 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:10:01,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,688 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:10:01,688 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 01:10:01,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,703 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 01:10:01,734 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 01:10:01,738 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 01:10:01,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,757 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 01:10:01,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,765 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 25 treesize of output 19 [2022-11-22 01:10:01,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,774 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 25 treesize of output 19 [2022-11-22 01:10:01,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:10:01,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:01,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:10:01,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:01,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:01,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:01,974 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 219 [2022-11-22 01:10:01,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:02,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:02,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 210 [2022-11-22 01:10:02,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:02,070 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:10:02,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 348 treesize of output 342 [2022-11-22 01:10:02,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:02,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:02,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 115 [2022-11-22 01:10:02,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 156 [2022-11-22 01:10:02,172 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 77 treesize of output 33 [2022-11-22 01:10:02,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:02,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-11-22 01:10:02,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-22 01:10:02,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:02,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 67 [2022-11-22 01:10:02,299 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 49 treesize of output 41 [2022-11-22 01:10:02,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:02,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:02,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:02,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-11-22 01:10:02,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:02,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:02,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 67 [2022-11-22 01:10:02,418 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 49 treesize of output 41 [2022-11-22 01:10:02,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:02,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:02,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:02,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-22 01:10:02,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-22 01:10:02,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:10:02,629 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:10:02,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:10:02,640 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 01:10:02,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,653 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 47 treesize of output 31 [2022-11-22 01:10:02,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:10:02,771 INFO L321 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2022-11-22 01:10:02,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 308 treesize of output 330 [2022-11-22 01:10:02,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:02,785 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 254 treesize of output 220 [2022-11-22 01:10:02,823 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:02,850 INFO L321 Elim1Store]: treesize reduction 91, result has 1.1 percent of original size [2022-11-22 01:10:02,850 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 5 case distinctions, treesize of input 62 treesize of output 15 [2022-11-22 01:10:03,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:03,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 103 [2022-11-22 01:10:03,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 56 [2022-11-22 01:10:03,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:03,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,109 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 18 treesize of output 12 [2022-11-22 01:10:03,119 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:03,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 103 [2022-11-22 01:10:03,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 56 [2022-11-22 01:10:03,293 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 01:10:03,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,302 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 18 treesize of output 12 [2022-11-22 01:10:03,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:03,320 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:03,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:03,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-22 01:10:03,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-22 01:10:03,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:10:03,481 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:10:03,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:10:03,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2022-11-22 01:10:03,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,521 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 47 treesize of output 31 [2022-11-22 01:10:03,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:10:03,601 INFO L321 Elim1Store]: treesize reduction 28, result has 22.2 percent of original size [2022-11-22 01:10:03,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 144 treesize of output 113 [2022-11-22 01:10:03,613 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 01:10:03,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:03,625 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 107 treesize of output 79 [2022-11-22 01:10:03,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:03,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:03,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:03,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:04,215 INFO L321 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-22 01:10:04,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 204 [2022-11-22 01:10:04,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:04,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:04,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:04,346 INFO L321 Elim1Store]: treesize reduction 114, result has 21.9 percent of original size [2022-11-22 01:10:04,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 253 treesize of output 230 [2022-11-22 01:10:04,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:04,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:04,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:04,427 INFO L321 Elim1Store]: treesize reduction 112, result has 23.3 percent of original size [2022-11-22 01:10:04,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 233 treesize of output 212 [2022-11-22 01:10:04,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:04,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2022-11-22 01:10:04,758 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-22 01:10:04,853 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:10:10,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2008722331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:10,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:10:10,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [16, 17] total 40 [2022-11-22 01:10:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741881613] [2022-11-22 01:10:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:10,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 01:10:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 01:10:10,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1813, Unknown=17, NotChecked=0, Total=1980 [2022-11-22 01:10:10,155 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:10:10,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:10,900 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-11-22 01:10:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:10:10,901 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-22 01:10:10,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:10,902 INFO L225 Difference]: With dead ends: 39 [2022-11-22 01:10:10,902 INFO L226 Difference]: Without dead ends: 36 [2022-11-22 01:10:10,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=155, Invalid=1898, Unknown=17, NotChecked=0, Total=2070 [2022-11-22 01:10:10,904 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 41 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:10,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 15 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:10:10,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-22 01:10:10,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-11-22 01:10:10,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:10,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-11-22 01:10:10,917 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 27 [2022-11-22 01:10:10,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:10,918 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-11-22 01:10:10,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:10:10,918 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-22 01:10:10,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 01:10:10,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:10,919 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:10,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:11,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:11,128 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:11,128 INFO L85 PathProgramCache]: Analyzing trace with hash -524443389, now seen corresponding path program 1 times [2022-11-22 01:10:11,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:11,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924660747] [2022-11-22 01:10:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:11,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:13,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:13,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924660747] [2022-11-22 01:10:13,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924660747] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:13,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837039208] [2022-11-22 01:10:13,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:13,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:13,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:13,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:13,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:10:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:14,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 121 conjunts are in the unsatisfiable core [2022-11-22 01:10:14,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:14,175 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 01:10:14,457 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:10:14,458 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:10:14,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:10:14,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-22 01:10:14,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-22 01:10:14,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:10:14,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 24 [2022-11-22 01:10:14,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:14,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-22 01:10:14,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:15,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:15,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:10:15,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:15,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-11-22 01:10:15,073 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-22 01:10:15,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2022-11-22 01:10:15,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:15,108 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-22 01:10:15,109 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 2 case distinctions, treesize of input 20 treesize of output 22 [2022-11-22 01:10:15,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:15,694 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:10:15,695 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 81 [2022-11-22 01:10:15,728 INFO L321 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2022-11-22 01:10:15,728 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 146 treesize of output 117 [2022-11-22 01:10:15,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:15,744 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 43 [2022-11-22 01:10:15,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:15,752 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 44 [2022-11-22 01:10:15,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:15,761 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 24 treesize of output 26 [2022-11-22 01:10:15,772 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 28 treesize of output 30 [2022-11-22 01:10:15,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:15,911 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:10:15,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 32 [2022-11-22 01:10:15,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:15,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:16,036 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:16,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:16,054 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1214 (Array Int Int)) (v_ArrVal_1210 Int) (v_ArrVal_1211 (Array Int Int)) (v_ArrVal_1213 Int) (v_ArrVal_1220 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_1210)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1211) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1220) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_1213)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1214) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2022-11-22 01:10:16,769 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1229 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| Int) (v_ArrVal_1214 (Array Int Int)) (v_ArrVal_1210 Int) (v_ArrVal_1211 (Array Int Int)) (v_ArrVal_1213 Int) (v_ArrVal_1231 (Array Int Int)) (v_ArrVal_1220 (Array Int Int)) (v_ArrVal_1230 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_14| Int)) (let ((.cse4 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1231))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1229)) (.cse5 (select .cse4 .cse2)) (.cse3 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_14| 4))) (or (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| |c_#StackHeapBarrier|)) (not (<= (select (select .cse0 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) |v_ULTIMATE.start_dll_append_~last~0#1.offset_14|)) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (let ((.cse1 (store |c_#memory_int| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1230))) (store .cse1 .cse2 (store (select .cse1 .cse2) .cse3 v_ArrVal_1210))) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1211) (select (select (store (store .cse4 .cse2 (store .cse5 .cse3 |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28|)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1220) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store .cse0 .cse2 (store (select .cse0 .cse2) .cse3 v_ArrVal_1213)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28| v_ArrVal_1214) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (not (= (select .cse5 .cse3) 0)) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_28|) 0))))))) is different from false [2022-11-22 01:10:16,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837039208] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:16,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1834572816] [2022-11-22 01:10:16,774 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-22 01:10:16,774 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:10:16,775 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:10:16,775 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:10:16,775 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:10:16,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,804 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:10:16,804 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 01:10:16,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,841 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:10:16,841 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 01:10:16,876 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 01:10:16,880 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 01:10:16,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,891 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 25 treesize of output 19 [2022-11-22 01:10:16,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,905 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 01:10:16,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,913 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 25 treesize of output 19 [2022-11-22 01:10:16,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:10:16,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:16,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:10:16,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:16,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:17,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,031 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 30 treesize of output 11 [2022-11-22 01:10:17,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:17,048 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 31 treesize of output 30 [2022-11-22 01:10:17,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:17,070 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 31 treesize of output 30 [2022-11-22 01:10:17,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:17,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:17,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:17,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:17,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:17,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:17,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:17,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:17,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:17,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:17,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:17,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 230 [2022-11-22 01:10:17,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,431 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 238 treesize of output 221 [2022-11-22 01:10:17,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:17,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:17,490 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:10:17,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 357 [2022-11-22 01:10:17,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,525 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 242 treesize of output 225 [2022-11-22 01:10:17,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:17,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:17,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:17,567 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-22 01:10:17,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 370 [2022-11-22 01:10:17,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:10:17,716 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-22 01:10:17,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 290 treesize of output 244 [2022-11-22 01:10:17,729 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 01:10:17,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,753 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 231 treesize of output 221 [2022-11-22 01:10:17,820 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:10:17,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 274 treesize of output 241 [2022-11-22 01:10:17,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:17,834 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 241 treesize of output 231 [2022-11-22 01:10:18,240 INFO L321 Elim1Store]: treesize reduction 12, result has 91.7 percent of original size [2022-11-22 01:10:18,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1443 treesize of output 1489 [2022-11-22 01:10:18,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1135 treesize of output 999 [2022-11-22 01:10:18,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:18,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,637 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 34 treesize of output 20 [2022-11-22 01:10:18,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,649 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 38 treesize of output 22 [2022-11-22 01:10:18,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,660 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 31 treesize of output 17 [2022-11-22 01:10:18,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:18,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 01:10:18,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:18,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:18,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:18,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:18,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:18,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:18,934 INFO L321 Elim1Store]: treesize reduction 12, result has 91.7 percent of original size [2022-11-22 01:10:18,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1925 treesize of output 1947 [2022-11-22 01:10:19,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1567 treesize of output 1401 [2022-11-22 01:10:19,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,331 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 31 treesize of output 17 [2022-11-22 01:10:19,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,342 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 38 treesize of output 22 [2022-11-22 01:10:19,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,353 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 34 treesize of output 20 [2022-11-22 01:10:19,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:19,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2022-11-22 01:10:19,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:19,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 230 [2022-11-22 01:10:19,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,556 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 238 treesize of output 221 [2022-11-22 01:10:19,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:19,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:19,619 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:10:19,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 357 [2022-11-22 01:10:19,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,657 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 242 treesize of output 225 [2022-11-22 01:10:19,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:19,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:19,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:19,703 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-22 01:10:19,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 365 [2022-11-22 01:10:19,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:10:19,840 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:10:19,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 264 treesize of output 231 [2022-11-22 01:10:19,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:19,857 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 231 treesize of output 221 [2022-11-22 01:10:20,016 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:10:20,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 274 treesize of output 241 [2022-11-22 01:10:20,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:20,027 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 241 treesize of output 231 [2022-11-22 01:10:20,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:20,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:20,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:20,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:20,451 INFO L321 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-22 01:10:20,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2022-11-22 01:10:20,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:20,541 INFO L321 Elim1Store]: treesize reduction 62, result has 30.3 percent of original size [2022-11-22 01:10:20,541 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 4 case distinctions, treesize of input 67 treesize of output 55 [2022-11-22 01:10:20,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:20,586 INFO L321 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2022-11-22 01:10:20,586 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 4 case distinctions, treesize of input 67 treesize of output 45 [2022-11-22 01:10:20,721 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-22 01:10:20,802 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:10:26,722 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1349#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|) 0)) (not (= |ULTIMATE.start_dll_append_~last~0#1.base| 0))) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (= |ULTIMATE.start_dll_append_~last~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|)) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (<= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~head#1.base|) |ULTIMATE.start_dll_append_~head#1.offset|)) (<= 0 |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 01:10:26,722 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:10:26,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:10:26,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 24] total 39 [2022-11-22 01:10:26,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256563331] [2022-11-22 01:10:26,723 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:10:26,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-22 01:10:26,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:26,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-22 01:10:26,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=3206, Unknown=6, NotChecked=230, Total=3660 [2022-11-22 01:10:26,725 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 39 states, 32 states have (on average 1.1875) internal successors, (38), 30 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:10:29,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:29,259 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2022-11-22 01:10:29,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 01:10:29,263 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 32 states have (on average 1.1875) internal successors, (38), 30 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 27 [2022-11-22 01:10:29,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:29,264 INFO L225 Difference]: With dead ends: 38 [2022-11-22 01:10:29,264 INFO L226 Difference]: Without dead ends: 36 [2022-11-22 01:10:29,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1232 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=428, Invalid=4686, Unknown=6, NotChecked=282, Total=5402 [2022-11-22 01:10:29,266 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 167 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:29,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 117 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 01:10:29,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-22 01:10:29,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2022-11-22 01:10:29,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-11-22 01:10:29,280 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 27 [2022-11-22 01:10:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:29,281 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-11-22 01:10:29,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 32 states have (on average 1.1875) internal successors, (38), 30 states have internal predecessors, (38), 6 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:10:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-11-22 01:10:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 01:10:29,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:29,282 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:29,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:29,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 01:10:29,483 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:29,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:29,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1478832560, now seen corresponding path program 1 times [2022-11-22 01:10:29,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:29,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257589723] [2022-11-22 01:10:29,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:29,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:30,910 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:10:30,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:30,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257589723] [2022-11-22 01:10:30,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257589723] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:30,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286865430] [2022-11-22 01:10:30,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:30,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:30,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:30,915 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:30,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:10:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:31,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 97 conjunts are in the unsatisfiable core [2022-11-22 01:10:31,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:31,194 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 01:10:31,515 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:10:31,516 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 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:10:31,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-22 01:10:31,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-22 01:10:31,631 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:10:31,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2022-11-22 01:10:31,794 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 01:10:31,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 29 [2022-11-22 01:10:31,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-22 01:10:31,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:31,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:31,938 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:10:31,939 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 62 [2022-11-22 01:10:31,957 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-22 01:10:31,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:10:31,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:31,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:10:32,417 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-22 01:10:32,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2022-11-22 01:10:32,454 INFO L321 Elim1Store]: treesize reduction 90, result has 14.3 percent of original size [2022-11-22 01:10:32,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 61 [2022-11-22 01:10:32,490 INFO L321 Elim1Store]: treesize reduction 62, result has 24.4 percent of original size [2022-11-22 01:10:32,490 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 111 [2022-11-22 01:10:32,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:32,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:10:32,529 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 46 treesize of output 30 [2022-11-22 01:10:32,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:32,690 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-22 01:10:32,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 24 [2022-11-22 01:10:32,694 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:32,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:33,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286865430] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:33,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [80758840] [2022-11-22 01:10:33,364 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-22 01:10:33,364 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:10:33,364 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:10:33,364 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:10:33,364 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:10:33,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,402 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:10:33,403 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 01:10:33,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,413 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 01:10:33,438 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 01:10:33,442 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 01:10:33,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,458 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 01:10:33,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,465 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 25 treesize of output 19 [2022-11-22 01:10:33,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,473 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 25 treesize of output 19 [2022-11-22 01:10:33,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:10:33,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:33,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:33,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:10:33,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:33,596 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 31 treesize of output 30 [2022-11-22 01:10:33,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,608 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 30 treesize of output 11 [2022-11-22 01:10:33,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:33,628 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 31 treesize of output 30 [2022-11-22 01:10:33,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:33,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:33,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:33,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:33,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:33,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:33,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:33,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:33,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:33,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:33,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:33,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 230 [2022-11-22 01:10:33,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,954 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 238 treesize of output 221 [2022-11-22 01:10:33,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,981 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 238 treesize of output 221 [2022-11-22 01:10:33,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:33,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:33,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:34,025 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:10:34,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 357 [2022-11-22 01:10:34,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:34,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:34,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:34,084 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-22 01:10:34,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 370 [2022-11-22 01:10:34,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:10:34,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 60 [2022-11-22 01:10:34,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,295 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 60 treesize of output 42 [2022-11-22 01:10:34,311 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 01:10:34,371 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:10:34,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 366 treesize of output 333 [2022-11-22 01:10:34,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:34,384 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 333 treesize of output 323 [2022-11-22 01:10:34,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:34,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:34,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,047 INFO L321 Elim1Store]: treesize reduction 12, result has 91.7 percent of original size [2022-11-22 01:10:35,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1194 treesize of output 1252 [2022-11-22 01:10:35,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 983 treesize of output 853 [2022-11-22 01:10:35,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,334 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 31 treesize of output 17 [2022-11-22 01:10:35,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:35,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,359 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 34 treesize of output 20 [2022-11-22 01:10:35,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,374 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 38 treesize of output 22 [2022-11-22 01:10:35,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 01:10:35,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,411 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-22 01:10:35,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 371 treesize of output 302 [2022-11-22 01:10:35,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:35,445 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:35,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 259 treesize of output 218 [2022-11-22 01:10:35,482 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 202 treesize of output 198 [2022-11-22 01:10:35,496 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 198 treesize of output 194 [2022-11-22 01:10:35,519 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:35,542 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:35,547 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:35,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:35,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,774 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-22 01:10:35,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 371 treesize of output 302 [2022-11-22 01:10:35,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:35,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:35,807 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:10:35,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 259 treesize of output 218 [2022-11-22 01:10:35,824 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 202 treesize of output 198 [2022-11-22 01:10:35,836 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 198 treesize of output 194 [2022-11-22 01:10:35,857 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:35,870 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:35,992 INFO L321 Elim1Store]: treesize reduction 12, result has 91.7 percent of original size [2022-11-22 01:10:35,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1730 treesize of output 1764 [2022-11-22 01:10:36,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1452 treesize of output 1310 [2022-11-22 01:10:36,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,429 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 34 treesize of output 20 [2022-11-22 01:10:36,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:36,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,450 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 38 treesize of output 22 [2022-11-22 01:10:36,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,463 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 31 treesize of output 17 [2022-11-22 01:10:36,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-11-22 01:10:36,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:36,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:36,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:36,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:36,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 230 [2022-11-22 01:10:36,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,654 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 238 treesize of output 221 [2022-11-22 01:10:36,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,669 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:36,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:36,714 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:10:36,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 357 [2022-11-22 01:10:36,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,743 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 242 treesize of output 225 [2022-11-22 01:10:36,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:36,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:36,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:36,780 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-22 01:10:36,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 365 [2022-11-22 01:10:36,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:10:36,883 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:10:36,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 264 treesize of output 231 [2022-11-22 01:10:36,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:36,898 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 231 treesize of output 221 [2022-11-22 01:10:37,085 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:10:37,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 274 treesize of output 241 [2022-11-22 01:10:37,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:37,096 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 241 treesize of output 231 [2022-11-22 01:10:37,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:37,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:37,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:37,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:37,659 INFO L321 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2022-11-22 01:10:37,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 214 treesize of output 204 [2022-11-22 01:10:37,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:37,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:37,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:37,788 INFO L321 Elim1Store]: treesize reduction 114, result has 21.9 percent of original size [2022-11-22 01:10:37,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 253 treesize of output 230 [2022-11-22 01:10:37,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:37,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:37,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:37,884 INFO L321 Elim1Store]: treesize reduction 112, result has 23.3 percent of original size [2022-11-22 01:10:37,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 237 treesize of output 216 [2022-11-22 01:10:37,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:37,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2022-11-22 01:10:38,622 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-22 01:10:38,705 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:10:45,464 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1647#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (not (= |ULTIMATE.start_main_~count~0#1| (+ |ULTIMATE.start_main_~len~0#1| 1))) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (= |ULTIMATE.start_main_~ptr~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~ptr~0#1.base| 0) (<= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|))' at error location [2022-11-22 01:10:45,465 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:10:45,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:10:45,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 23] total 34 [2022-11-22 01:10:45,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332389753] [2022-11-22 01:10:45,465 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:10:45,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-22 01:10:45,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:45,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-22 01:10:45,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=3094, Unknown=7, NotChecked=0, Total=3306 [2022-11-22 01:10:45,467 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 34 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 27 states have internal predecessors, (39), 4 states have call successors, (4), 3 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-22 01:10:48,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:48,211 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2022-11-22 01:10:48,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 01:10:48,212 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 27 states have internal predecessors, (39), 4 states have call successors, (4), 3 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 29 [2022-11-22 01:10:48,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:48,213 INFO L225 Difference]: With dead ends: 44 [2022-11-22 01:10:48,213 INFO L226 Difference]: Without dead ends: 35 [2022-11-22 01:10:48,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1299 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=449, Invalid=4946, Unknown=7, NotChecked=0, Total=5402 [2022-11-22 01:10:48,215 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 173 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:48,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 147 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:10:48,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-22 01:10:48,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 28. [2022-11-22 01:10:48,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:10:48,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-11-22 01:10:48,230 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 29 [2022-11-22 01:10:48,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:48,231 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-11-22 01:10:48,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 27 states have internal predecessors, (39), 4 states have call successors, (4), 3 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-22 01:10:48,231 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-22 01:10:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 01:10:48,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:48,232 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:48,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-22 01:10:48,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-22 01:10:48,435 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:48,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:48,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1925442722, now seen corresponding path program 1 times [2022-11-22 01:10:48,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:48,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284158282] [2022-11-22 01:10:48,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:48,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:50,810 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:50,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:50,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284158282] [2022-11-22 01:10:50,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284158282] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:50,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648938932] [2022-11-22 01:10:50,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:50,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:50,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:50,812 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:50,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:10:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:51,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 148 conjunts are in the unsatisfiable core [2022-11-22 01:10:51,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:51,814 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 01:10:52,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:52,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:52,240 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:10:52,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:10:52,350 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 9 treesize of output 11 [2022-11-22 01:10:52,356 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24 [2022-11-22 01:10:52,362 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-22 01:10:52,375 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:10:52,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 48 [2022-11-22 01:10:52,389 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 18 treesize of output 20 [2022-11-22 01:10:52,604 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:10:52,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 32 [2022-11-22 01:10:52,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:52,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:52,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:10:52,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:52,842 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:10:52,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 65 [2022-11-22 01:10:52,867 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-22 01:10:52,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2022-11-22 01:10:52,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:52,906 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-22 01:10:52,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:10:52,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:52,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:10:53,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:53,635 INFO L321 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-11-22 01:10:53,636 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 163 treesize of output 128 [2022-11-22 01:10:53,656 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-11-22 01:10:53,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 58 [2022-11-22 01:10:53,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 33 [2022-11-22 01:10:53,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:53,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:53,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2022-11-22 01:10:53,808 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:10:53,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 36 [2022-11-22 01:10:53,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:53,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 24 treesize of output 10 [2022-11-22 01:10:53,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:10:53,927 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:53,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:53,947 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1746 (Array Int Int)) (v_ArrVal_1744 (Array Int Int)) (v_ArrVal_1743 (Array Int Int)) (|ULTIMATE.start_dll_append_~last~0#1.offset| Int) (v_ArrVal_1751 (Array Int Int)) (v_ArrVal_1749 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_1751) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1743) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_1749) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1744) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4) |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1746) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) is different from false [2022-11-22 01:10:53,974 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1746 (Array Int Int)) (v_ArrVal_1744 (Array Int Int)) (v_ArrVal_1743 (Array Int Int)) (v_ArrVal_1751 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_17| Int) (v_ArrVal_1749 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4)))) (select (select (store (store |c_#memory_int| .cse0 v_ArrVal_1751) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1743) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1749) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1744) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_17| 4) |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1746) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2022-11-22 01:10:53,990 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1746 (Array Int Int)) (v_ArrVal_1744 (Array Int Int)) (v_ArrVal_1743 (Array Int Int)) (v_ArrVal_1751 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_17| Int) (v_ArrVal_1749 (Array Int Int))) (= (let ((.cse0 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (select (select (store (store |c_#memory_int| .cse0 v_ArrVal_1751) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1743) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1749) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1744) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_17| 4) |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_1746) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) |c_ULTIMATE.start_main_~data~0#1|)) is different from false [2022-11-22 01:10:54,005 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1746 (Array Int Int)) (v_ArrVal_1744 (Array Int Int)) (v_ArrVal_1743 (Array Int Int)) (v_ArrVal_1751 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_17| Int) (v_ArrVal_1749 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (select (select (store (store |c_#memory_int| .cse0 v_ArrVal_1751) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1743) (select (select (store (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1749) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1744) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 (store (select |c_#memory_$Pointer$.offset| .cse0) (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_17| 4) |c_ULTIMATE.start_dll_append_#t~ret7#1.offset|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_1746) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) is different from false [2022-11-22 01:10:54,130 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1746 (Array Int Int)) (v_ArrVal_1744 (Array Int Int)) (v_ArrVal_1743 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| Int) (v_ArrVal_1762 (Array Int Int)) (v_ArrVal_1751 (Array Int Int)) (v_ArrVal_1761 (Array Int Int)) (v_ArrVal_1760 (Array Int Int)) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_17| Int) (v_ArrVal_1749 (Array Int Int))) (or (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| |c_#StackHeapBarrier|)) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse1 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1762)) (.cse2 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1761))) (let ((.cse0 (select (select .cse1 (select (select .cse1 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (+ (select (select .cse2 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4)))) (select (select (store (store (store |c_#memory_int| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1760) .cse0 v_ArrVal_1751) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1743) (select (select (store (store .cse1 .cse0 v_ArrVal_1749) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1744) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (select (select (store (store .cse2 .cse0 (store (select .cse2 .cse0) (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_17| 4) 0)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36| v_ArrVal_1746) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_36|) 0)))) is different from false [2022-11-22 01:10:54,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648938932] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:10:54,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1448410832] [2022-11-22 01:10:54,135 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-22 01:10:54,135 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:10:54,135 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:10:54,136 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:10:54,136 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:10:54,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,165 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:10:54,165 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 01:10:54,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,190 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:10:54,190 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 01:10:54,215 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 01:10:54,219 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 01:10:54,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,227 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 25 treesize of output 19 [2022-11-22 01:10:54,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,237 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 25 treesize of output 19 [2022-11-22 01:10:54,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,254 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 01:10:54,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:54,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:10:54,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:10:54,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:10:54,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,366 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 30 treesize of output 11 [2022-11-22 01:10:54,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:54,383 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 31 treesize of output 30 [2022-11-22 01:10:54,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:54,406 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 31 treesize of output 30 [2022-11-22 01:10:54,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:54,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:54,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:54,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:54,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:54,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:54,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:54,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:54,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:10:54,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:10:54,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:54,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-22 01:10:54,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-22 01:10:54,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:10:54,742 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:10:54,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:10:54,753 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 01:10:54,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,765 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 47 treesize of output 31 [2022-11-22 01:10:54,805 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:10:54,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:10:54,821 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 01:10:54,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,834 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 47 treesize of output 31 [2022-11-22 01:10:54,897 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:10:54,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:54,913 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 47 treesize of output 11 [2022-11-22 01:10:54,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:55,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,013 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:10:55,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 36 [2022-11-22 01:10:55,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,035 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:10:55,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 36 [2022-11-22 01:10:55,047 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 15 treesize of output 7 [2022-11-22 01:10:55,056 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 8 treesize of output 4 [2022-11-22 01:10:55,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:10:55,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-22 01:10:55,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:55,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:10:55,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-22 01:10:55,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 142 [2022-11-22 01:10:55,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:10:55,245 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:10:55,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:10:55,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,257 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 23 treesize of output 17 [2022-11-22 01:10:55,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,271 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 48 treesize of output 32 [2022-11-22 01:10:55,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:10:55,350 INFO L321 Elim1Store]: treesize reduction 28, result has 22.2 percent of original size [2022-11-22 01:10:55,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 58 [2022-11-22 01:10:55,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,361 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 38 treesize of output 24 [2022-11-22 01:10:55,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:10:55,374 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 59 treesize of output 39 [2022-11-22 01:10:55,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:55,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:55,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:55,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:10:55,864 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:10:55,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2022-11-22 01:10:55,903 INFO L321 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-22 01:10:55,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2022-11-22 01:10:55,927 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-22 01:10:55,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 19 [2022-11-22 01:10:56,037 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-22 01:10:56,119 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:10:59,969 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1967#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 01:10:59,969 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:10:59,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:10:59,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 42 [2022-11-22 01:10:59,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870513560] [2022-11-22 01:10:59,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:10:59,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-22 01:10:59,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:59,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-22 01:10:59,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=2895, Unknown=7, NotChecked=560, Total=3660 [2022-11-22 01:10:59,972 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 42 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 33 states have internal predecessors, (45), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:11:02,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:02,997 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2022-11-22 01:11:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 01:11:02,997 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 33 states have internal predecessors, (45), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 29 [2022-11-22 01:11:02,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:02,998 INFO L225 Difference]: With dead ends: 44 [2022-11-22 01:11:02,998 INFO L226 Difference]: Without dead ends: 42 [2022-11-22 01:11:02,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1089 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=381, Invalid=4324, Unknown=7, NotChecked=690, Total=5402 [2022-11-22 01:11:03,000 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 102 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:03,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 162 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:11:03,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-22 01:11:03,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2022-11-22 01:11:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:11:03,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2022-11-22 01:11:03,024 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 29 [2022-11-22 01:11:03,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:03,027 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2022-11-22 01:11:03,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 33 states have internal predecessors, (45), 6 states have call successors, (6), 3 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:11:03,027 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2022-11-22 01:11:03,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 01:11:03,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:03,033 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:03,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:03,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:03,247 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:03,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:03,247 INFO L85 PathProgramCache]: Analyzing trace with hash 780483385, now seen corresponding path program 1 times [2022-11-22 01:11:03,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:03,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028478684] [2022-11-22 01:11:03,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:03,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:07,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:07,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028478684] [2022-11-22 01:11:07,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028478684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:07,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436784788] [2022-11-22 01:11:07,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:07,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:07,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:07,360 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:07,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:11:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:08,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 169 conjunts are in the unsatisfiable core [2022-11-22 01:11:08,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:08,253 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 01:11:08,495 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 14 treesize of output 15 [2022-11-22 01:11:08,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:08,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:08,758 INFO L321 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2022-11-22 01:11:08,758 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 2 case distinctions, treesize of input 19 treesize of output 16 [2022-11-22 01:11:08,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:11:08,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:08,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 19 [2022-11-22 01:11:08,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-22 01:11:08,924 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-11-22 01:11:08,953 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:11:08,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 58 [2022-11-22 01:11:08,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:11:08,977 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 18 treesize of output 26 [2022-11-22 01:11:09,257 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:11:09,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 43 [2022-11-22 01:11:09,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2022-11-22 01:11:09,274 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:11:09,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2022-11-22 01:11:09,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:09,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:09,497 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:11:09,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 80 [2022-11-22 01:11:09,520 INFO L321 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2022-11-22 01:11:09,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 36 [2022-11-22 01:11:09,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:09,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:09,557 INFO L321 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2022-11-22 01:11:09,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 38 [2022-11-22 01:11:09,590 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-22 01:11:09,590 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 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:11:10,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:10,754 INFO L321 Elim1Store]: treesize reduction 135, result has 17.2 percent of original size [2022-11-22 01:11:10,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 268 treesize of output 136 [2022-11-22 01:11:10,810 INFO L321 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-11-22 01:11:10,810 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 332 treesize of output 205 [2022-11-22 01:11:10,859 INFO L321 Elim1Store]: treesize reduction 128, result has 19.0 percent of original size [2022-11-22 01:11:10,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 249 treesize of output 213 [2022-11-22 01:11:10,890 INFO L321 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2022-11-22 01:11:10,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 211 treesize of output 197 [2022-11-22 01:11:10,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:10,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:10,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 68 [2022-11-22 01:11:10,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-22 01:11:11,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:11,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:11,372 INFO L321 Elim1Store]: treesize reduction 43, result has 6.5 percent of original size [2022-11-22 01:11:11,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 212 treesize of output 83 [2022-11-22 01:11:11,389 INFO L321 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-11-22 01:11:11,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 18 [2022-11-22 01:11:11,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:11,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:11,696 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2038 Int) (v_ArrVal_2039 Int) (v_ArrVal_2033 (Array Int Int)) (v_ArrVal_2032 (Array Int Int)) (v_ArrVal_2031 (Array Int Int))) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse0 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_2039)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2033)) (.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2032))) (let ((.cse2 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse0 v_ArrVal_2038)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2031) (select (select .cse1 .cse2) .cse3)) (select (select .cse4 .cse2) .cse3))))))) is different from false [2022-11-22 01:11:12,903 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2050 (Array Int Int)) (v_ArrVal_2049 (Array Int Int)) (v_ArrVal_2048 (Array Int Int)) (|v_ULTIMATE.start_dll_append_#t~ret7#1.base_40| Int) (|v_ULTIMATE.start_dll_append_~last~0#1.offset_23| Int) (v_ArrVal_2038 Int) (v_ArrVal_2039 Int) (v_ArrVal_2033 (Array Int Int)) (v_ArrVal_2032 (Array Int Int)) (v_ArrVal_2031 (Array Int Int))) (let ((.cse9 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_40| v_ArrVal_2049)) (.cse7 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_40| v_ArrVal_2050))) (let ((.cse10 (select (select .cse7 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse11 (+ (select (select .cse9 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse1 (select (select .cse7 .cse10) .cse11))) (let ((.cse8 (select .cse7 .cse1)) (.cse2 (+ |v_ULTIMATE.start_dll_append_~last~0#1.offset_23| 4))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_40|) 0)) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse6 (store (store .cse9 .cse1 (store (select .cse9 .cse1) .cse2 v_ArrVal_2039)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_40| v_ArrVal_2033)) (.cse3 (store (store .cse7 .cse1 (store .cse8 .cse2 |v_ULTIMATE.start_dll_append_#t~ret7#1.base_40|)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_40| v_ArrVal_2032))) (let ((.cse4 (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse5 (+ (select (select .cse6 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select (store (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_40| v_ArrVal_2048))) (store .cse0 .cse1 (store (select .cse0 .cse1) .cse2 v_ArrVal_2038))) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_40| v_ArrVal_2031) (select (select .cse3 .cse4) .cse5)) (select (select .cse6 .cse4) .cse5))))) (not (= (select .cse8 .cse2) 0)) (not (<= (select (select .cse9 .cse10) .cse11) |v_ULTIMATE.start_dll_append_~last~0#1.offset_23|)) (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_40| |c_#StackHeapBarrier|)))))))) is different from false [2022-11-22 01:11:12,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436784788] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:12,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [735093524] [2022-11-22 01:11:12,910 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-22 01:11:12,910 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:11:12,911 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:11:12,911 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:11:12,911 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:11:12,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:12,952 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:11:12,952 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 01:11:12,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:12,963 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 01:11:12,985 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 01:11:12,989 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 01:11:13,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,004 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 01:11:13,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,011 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 25 treesize of output 19 [2022-11-22 01:11:13,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,019 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 25 treesize of output 19 [2022-11-22 01:11:13,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:13,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:11:13,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:13,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:11:13,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:13,138 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 31 treesize of output 30 [2022-11-22 01:11:13,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:13,156 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 31 treesize of output 30 [2022-11-22 01:11:13,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,167 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 30 treesize of output 11 [2022-11-22 01:11:13,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:13,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:13,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:13,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:13,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:13,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:13,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:13,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:13,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:13,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:13,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-22 01:11:13,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:13,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-22 01:11:13,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:11:13,476 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:11:13,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-22 01:11:13,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,491 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 23 treesize of output 17 [2022-11-22 01:11:13,517 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:11:13,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-22 01:11:13,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,535 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 23 treesize of output 17 [2022-11-22 01:11:13,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:11:13,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,696 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:11:13,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 37 [2022-11-22 01:11:13,711 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-22 01:11:13,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 24 [2022-11-22 01:11:13,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:13,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:13,835 INFO L321 Elim1Store]: treesize reduction 12, result has 70.7 percent of original size [2022-11-22 01:11:13,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 833 treesize of output 829 [2022-11-22 01:11:13,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:13,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 833 treesize of output 793 [2022-11-22 01:11:13,946 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 01:11:13,946 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 603 treesize of output 496 [2022-11-22 01:11:14,029 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:11:14,089 INFO L321 Elim1Store]: treesize reduction 14, result has 64.1 percent of original size [2022-11-22 01:11:14,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 603 treesize of output 560 [2022-11-22 01:11:14,108 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 471 treesize of output 427 [2022-11-22 01:11:14,202 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-22 01:11:14,202 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 603 treesize of output 496 [2022-11-22 01:11:14,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,295 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 38 treesize of output 22 [2022-11-22 01:11:14,303 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 01:11:14,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,313 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 34 treesize of output 20 [2022-11-22 01:11:14,321 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 01:11:14,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:14,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-22 01:11:14,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:14,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 155 [2022-11-22 01:11:14,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:11:14,449 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:11:14,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 23 [2022-11-22 01:11:14,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,459 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 23 treesize of output 17 [2022-11-22 01:11:14,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:11:14,509 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 01:11:14,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 98 [2022-11-22 01:11:14,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:14,517 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 80 treesize of output 62 [2022-11-22 01:11:14,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:14,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:14,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:14,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:14,965 INFO L321 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-22 01:11:14,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2022-11-22 01:11:14,984 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-22 01:11:14,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 19 [2022-11-22 01:11:15,014 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:11:15,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2022-11-22 01:11:15,161 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-22 01:11:15,239 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:11:19,477 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2308#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 01:11:19,477 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:11:19,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:11:19,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 47 [2022-11-22 01:11:19,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577245856] [2022-11-22 01:11:19,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:11:19,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-11-22 01:11:19,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:19,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-11-22 01:11:19,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=4321, Unknown=4, NotChecked=266, Total=4830 [2022-11-22 01:11:19,480 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 47 states, 39 states have (on average 1.205128205128205) internal successors, (47), 37 states have internal predecessors, (47), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:11:24,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:24,284 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2022-11-22 01:11:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-22 01:11:24,285 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 39 states have (on average 1.205128205128205) internal successors, (47), 37 states have internal predecessors, (47), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31 [2022-11-22 01:11:24,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:24,286 INFO L225 Difference]: With dead ends: 62 [2022-11-22 01:11:24,286 INFO L226 Difference]: Without dead ends: 60 [2022-11-22 01:11:24,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1436 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=456, Invalid=6354, Unknown=4, NotChecked=326, Total=7140 [2022-11-22 01:11:24,289 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 137 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:24,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 235 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:11:24,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-22 01:11:24,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2022-11-22 01:11:24,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:11:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2022-11-22 01:11:24,321 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 31 [2022-11-22 01:11:24,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:24,322 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2022-11-22 01:11:24,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 39 states have (on average 1.205128205128205) internal successors, (47), 37 states have internal predecessors, (47), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:11:24,322 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2022-11-22 01:11:24,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 01:11:24,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:24,323 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:24,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:24,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:24,535 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:24,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:24,536 INFO L85 PathProgramCache]: Analyzing trace with hash 333929209, now seen corresponding path program 2 times [2022-11-22 01:11:24,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:24,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109043955] [2022-11-22 01:11:24,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:24,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:29,593 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:29,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:29,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109043955] [2022-11-22 01:11:29,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109043955] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:29,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490643358] [2022-11-22 01:11:29,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:11:29,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:29,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:29,594 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:29,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:11:30,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:11:30,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:11:30,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 139 conjunts are in the unsatisfiable core [2022-11-22 01:11:30,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:30,254 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 6 treesize of output 5 [2022-11-22 01:11:30,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:30,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:30,741 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:11:30,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:11:30,754 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 14 treesize of output 16 [2022-11-22 01:11:30,761 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 14 treesize of output 16 [2022-11-22 01:11:30,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:30,909 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 25 treesize of output 22 [2022-11-22 01:11:30,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:30,916 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 25 treesize of output 22 [2022-11-22 01:11:30,919 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 01:11:30,928 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 7 [2022-11-22 01:11:30,935 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 18 treesize of output 26 [2022-11-22 01:11:30,942 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 18 treesize of output 26 [2022-11-22 01:11:31,186 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:31,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 42 [2022-11-22 01:11:31,199 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:11:31,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 10 [2022-11-22 01:11:31,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,419 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-22 01:11:31,420 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 2 case distinctions, treesize of input 40 treesize of output 48 [2022-11-22 01:11:31,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,464 INFO L321 Elim1Store]: treesize reduction 52, result has 17.5 percent of original size [2022-11-22 01:11:31,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 74 [2022-11-22 01:11:31,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,492 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-22 01:11:31,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:11:31,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:31,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:32,020 INFO L321 Elim1Store]: treesize reduction 63, result has 14.9 percent of original size [2022-11-22 01:11:32,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 97 treesize of output 57 [2022-11-22 01:11:32,182 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-22 01:11:32,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 1 [2022-11-22 01:11:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:32,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:32,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490643358] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:32,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [544344660] [2022-11-22 01:11:32,823 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-22 01:11:32,823 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:11:32,823 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:11:32,824 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:11:32,824 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:11:32,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,855 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:11:32,855 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 01:11:32,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,866 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 01:11:32,890 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 01:11:32,895 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 01:11:32,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,909 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 01:11:32,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,917 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 25 treesize of output 19 [2022-11-22 01:11:32,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,924 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 25 treesize of output 19 [2022-11-22 01:11:32,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:32,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:11:32,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:32,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:11:33,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:33,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:33,044 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 31 treesize of output 30 [2022-11-22 01:11:33,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,054 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 30 treesize of output 11 [2022-11-22 01:11:33,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:33,078 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 31 treesize of output 30 [2022-11-22 01:11:33,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:33,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:33,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:33,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:33,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:33,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:33,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:33,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:33,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:33,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:33,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 147 [2022-11-22 01:11:33,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:33,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 160 [2022-11-22 01:11:33,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:11:33,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:11:33,458 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 01:11:33,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 141 treesize of output 120 [2022-11-22 01:11:33,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,468 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 102 treesize of output 76 [2022-11-22 01:11:33,502 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:11:33,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 66 [2022-11-22 01:11:33,515 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 11 treesize of output 3 [2022-11-22 01:11:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,528 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-22 01:11:33,528 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 46 [2022-11-22 01:11:33,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:33,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,627 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-22 01:11:33,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 128 treesize of output 81 [2022-11-22 01:11:33,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,644 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:11:33,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 28 [2022-11-22 01:11:33,656 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 15 treesize of output 7 [2022-11-22 01:11:33,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:33,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,723 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-22 01:11:33,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 128 treesize of output 81 [2022-11-22 01:11:33,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,739 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:11:33,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 28 [2022-11-22 01:11:33,750 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 15 treesize of output 7 [2022-11-22 01:11:33,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,795 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:33,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 152 [2022-11-22 01:11:33,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 137 [2022-11-22 01:11:33,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 01:11:33,882 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 01:11:33,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 194 treesize of output 167 [2022-11-22 01:11:33,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,892 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 149 treesize of output 111 [2022-11-22 01:11:33,926 INFO L321 Elim1Store]: treesize reduction 25, result has 35.9 percent of original size [2022-11-22 01:11:33,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 50 [2022-11-22 01:11:33,937 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 01:11:33,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,950 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 47 treesize of output 31 [2022-11-22 01:11:33,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:33,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:11:34,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:34,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:34,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:34,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:34,366 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-22 01:11:34,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 19 [2022-11-22 01:11:34,398 INFO L321 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-22 01:11:34,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2022-11-22 01:11:34,428 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:11:34,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2022-11-22 01:11:34,527 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-22 01:11:34,600 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:11:39,070 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2695#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (or (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.offset|) (and (= |ULTIMATE.start_dll_append_~last~0#1.offset| (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 4)) (= |ULTIMATE.start_dll_append_~last~0#1.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|))) (or (not (= |ULTIMATE.start_main_~ptr~0#1.base| 0)) (not (= |ULTIMATE.start_main_~ptr~0#1.offset| 0))) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~count~0#1| 0) (not (= |ULTIMATE.start_main_~data~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) |ULTIMATE.start_main_~ptr~0#1.offset|))) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8)) |ULTIMATE.start_dll_append_~last~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_append_~last~0#1.base|) (+ |ULTIMATE.start_dll_append_~last~0#1.offset| 4)) |ULTIMATE.start_dll_append_~new_last~0#1.base|) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_append_~last~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |ULTIMATE.start_dll_append_~new_last~0#1.offset| 8))) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 01:11:39,070 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:11:39,070 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:11:39,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 20] total 45 [2022-11-22 01:11:39,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767153292] [2022-11-22 01:11:39,071 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:11:39,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-11-22 01:11:39,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:11:39,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-11-22 01:11:39,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=3833, Unknown=3, NotChecked=0, Total=4032 [2022-11-22 01:11:39,073 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand has 45 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 35 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:11:46,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:46,526 INFO L93 Difference]: Finished difference Result 69 states and 85 transitions. [2022-11-22 01:11:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-22 01:11:46,527 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 35 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 31 [2022-11-22 01:11:46,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:46,527 INFO L225 Difference]: With dead ends: 69 [2022-11-22 01:11:46,528 INFO L226 Difference]: Without dead ends: 57 [2022-11-22 01:11:46,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=403, Invalid=6074, Unknown=3, NotChecked=0, Total=6480 [2022-11-22 01:11:46,530 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 108 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:46,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 173 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-22 01:11:46,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-22 01:11:46,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2022-11-22 01:11:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:11:46,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-11-22 01:11:46,562 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 31 [2022-11-22 01:11:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:46,562 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-11-22 01:11:46,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 35 states have internal predecessors, (48), 6 states have call successors, (6), 4 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:11:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-11-22 01:11:46,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:11:46,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:46,564 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:46,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:46,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-22 01:11:46,766 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:46,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:46,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1574653178, now seen corresponding path program 1 times [2022-11-22 01:11:46,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:11:46,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325520350] [2022-11-22 01:11:46,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:46,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:11:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:49,764 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:11:49,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:11:49,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325520350] [2022-11-22 01:11:49,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325520350] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:49,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010225281] [2022-11-22 01:11:49,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:49,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:11:49,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:49,766 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:11:49,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 01:11:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:50,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 156 conjunts are in the unsatisfiable core [2022-11-22 01:11:50,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:50,723 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 6 treesize of output 5 [2022-11-22 01:11:50,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:50,900 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:11:50,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:11:51,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:11:51,106 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:11:51,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:11:51,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-22 01:11:51,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-22 01:11:51,248 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:11:51,248 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 49 [2022-11-22 01:11:51,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:11:51,504 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:11:51,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 41 [2022-11-22 01:11:51,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 16 treesize of output 10 [2022-11-22 01:11:51,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:11:51,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:51,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:51,705 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 25 treesize of output 30 [2022-11-22 01:11:51,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:51,721 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:11:51,721 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 76 [2022-11-22 01:11:51,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:51,747 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-22 01:11:51,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 33 [2022-11-22 01:11:52,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:52,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:52,774 INFO L321 Elim1Store]: treesize reduction 135, result has 17.2 percent of original size [2022-11-22 01:11:52,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 225 treesize of output 122 [2022-11-22 01:11:52,810 INFO L321 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-11-22 01:11:52,810 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 349 treesize of output 234 [2022-11-22 01:11:52,853 INFO L321 Elim1Store]: treesize reduction 104, result has 22.4 percent of original size [2022-11-22 01:11:52,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 276 treesize of output 181 [2022-11-22 01:11:52,885 INFO L321 Elim1Store]: treesize reduction 98, result has 22.2 percent of original size [2022-11-22 01:11:52,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 189 treesize of output 164 [2022-11-22 01:11:53,241 INFO L321 Elim1Store]: treesize reduction 54, result has 5.3 percent of original size [2022-11-22 01:11:53,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 195 treesize of output 124 [2022-11-22 01:11:53,393 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:11:53,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 47 [2022-11-22 01:11:53,398 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 01:11:53,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:11:54,329 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_append_#t~ret7#1.base_48| Int) (v_ArrVal_2574 (Array Int Int)) (v_ArrVal_2584 (Array Int Int)) (v_ArrVal_2573 (Array Int Int)) (v_ArrVal_2583 (Array Int Int))) (let ((.cse8 (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_48| v_ArrVal_2583)) (.cse4 (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_48| v_ArrVal_2584))) (let ((.cse9 (select (select .cse4 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse10 (+ 4 (select (select .cse8 |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)))) (let ((.cse5 (select (select .cse4 .cse9) .cse10))) (let ((.cse6 (select .cse4 .cse5)) (.cse7 (+ 4 (select (select .cse8 .cse9) .cse10)))) (or (= |v_ULTIMATE.start_dll_append_#t~ret7#1.base_48| 0) (not (= (select |c_#valid| |v_ULTIMATE.start_dll_append_#t~ret7#1.base_48|) 0)) (not (= (let ((.cse3 (store (store .cse8 .cse5 (store (select .cse8 .cse5) .cse7 0)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_48| v_ArrVal_2574)) (.cse0 (store (store .cse4 .cse5 (store .cse6 .cse7 |v_ULTIMATE.start_dll_append_#t~ret7#1.base_48|)) |v_ULTIMATE.start_dll_append_#t~ret7#1.base_48| v_ArrVal_2573))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ (select (select .cse3 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (select (select .cse0 (select (select .cse0 .cse1) .cse2)) (+ (select (select .cse3 .cse1) .cse2) 4)))) 0)) (not (< |v_ULTIMATE.start_dll_append_#t~ret7#1.base_48| |c_#StackHeapBarrier|)) (not (= (select .cse6 .cse7) 0)))))))) is different from false [2022-11-22 01:11:54,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010225281] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:11:54,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [999383151] [2022-11-22 01:11:54,334 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-22 01:11:54,334 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:11:54,334 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:11:54,334 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:11:54,334 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:11:54,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,360 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:11:54,360 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 01:11:54,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,386 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:11:54,386 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 01:11:54,410 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 01:11:54,413 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 01:11:54,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,422 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 25 treesize of output 19 [2022-11-22 01:11:54,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,435 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 01:11:54,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,443 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 25 treesize of output 19 [2022-11-22 01:11:54,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:54,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:11:54,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:11:54,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 01:11:54,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:54,557 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 31 treesize of output 30 [2022-11-22 01:11:54,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:54,595 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 31 treesize of output 30 [2022-11-22 01:11:54,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,606 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 30 treesize of output 11 [2022-11-22 01:11:54,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:54,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:54,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:54,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:54,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:54,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:54,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:54,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:54,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-11-22 01:11:54,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:54,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:54,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 230 [2022-11-22 01:11:54,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,923 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 238 treesize of output 221 [2022-11-22 01:11:54,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,938 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:54,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:54,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:54,960 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 01:11:54,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 353 [2022-11-22 01:11:54,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:54,992 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 242 treesize of output 225 [2022-11-22 01:11:55,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:55,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:55,030 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:11:55,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 351 [2022-11-22 01:11:55,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:11:55,137 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 01:11:55,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 362 treesize of output 329 [2022-11-22 01:11:55,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,150 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 311 treesize of output 265 [2022-11-22 01:11:55,348 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:11:55,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 553 treesize of output 506 [2022-11-22 01:11:55,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,359 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 506 treesize of output 464 [2022-11-22 01:11:55,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:55,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:55,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:55,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 165 [2022-11-22 01:11:55,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 127 [2022-11-22 01:11:55,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,821 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 131 treesize of output 113 [2022-11-22 01:11:55,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,836 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 45 treesize of output 39 [2022-11-22 01:11:55,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:55,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:55,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:55,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,887 INFO L321 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-11-22 01:11:55,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 283 treesize of output 226 [2022-11-22 01:11:55,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:55,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:55,909 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:55,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 210 treesize of output 175 [2022-11-22 01:11:55,925 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 159 treesize of output 155 [2022-11-22 01:11:55,937 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 155 treesize of output 151 [2022-11-22 01:11:56,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:56,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:56,179 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:11:56,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 265 treesize of output 216 [2022-11-22 01:11:56,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,214 INFO L321 Elim1Store]: treesize reduction 26, result has 3.7 percent of original size [2022-11-22 01:11:56,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 228 treesize of output 183 [2022-11-22 01:11:56,228 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 159 treesize of output 155 [2022-11-22 01:11:56,238 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 155 treesize of output 151 [2022-11-22 01:11:56,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 165 [2022-11-22 01:11:56,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 127 [2022-11-22 01:11:56,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,300 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 131 treesize of output 113 [2022-11-22 01:11:56,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:56,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,329 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 45 treesize of output 39 [2022-11-22 01:11:56,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:56,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:56,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:11:56,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:56,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:56,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 230 [2022-11-22 01:11:56,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,517 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 238 treesize of output 221 [2022-11-22 01:11:56,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:56,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:56,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:56,552 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 01:11:56,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 353 [2022-11-22 01:11:56,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,579 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 242 treesize of output 225 [2022-11-22 01:11:56,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:56,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:11:56,617 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:11:56,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 351 [2022-11-22 01:11:56,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 11 [2022-11-22 01:11:56,761 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-22 01:11:56,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 362 treesize of output 329 [2022-11-22 01:11:56,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,774 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 311 treesize of output 265 [2022-11-22 01:11:56,896 INFO L321 Elim1Store]: treesize reduction 23, result has 4.2 percent of original size [2022-11-22 01:11:56,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 365 treesize of output 322 [2022-11-22 01:11:56,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:11:56,906 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 322 treesize of output 288 [2022-11-22 01:11:57,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:57,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:57,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:57,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 01:11:57,326 INFO L321 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-22 01:11:57,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 19 [2022-11-22 01:11:57,355 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:11:57,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2022-11-22 01:11:57,391 INFO L321 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-22 01:11:57,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2022-11-22 01:11:57,531 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 43 for LOIs [2022-11-22 01:11:57,603 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:12:02,237 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3108#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.base|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (not (= |ULTIMATE.start_main_~count~0#1| (+ |ULTIMATE.start_main_~len~0#1| 1))) (<= |ULTIMATE.start_dll_append_~data#1| 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_append_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_append_#in~head#1.offset|) (= |ULTIMATE.start_dll_append_~new_last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_main_~ptr~0#1.base| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 1 |ULTIMATE.start_dll_append_#in~data#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_dll_append_~head#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_append_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 1 |ULTIMATE.start_dll_append_~data#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |ULTIMATE.start_dll_append_~head#1.base|) (<= |ULTIMATE.start_dll_append_#in~data#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 01:12:02,237 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:12:02,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-22 01:12:02,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 42 [2022-11-22 01:12:02,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851964678] [2022-11-22 01:12:02,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-22 01:12:02,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-11-22 01:12:02,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:12:02,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-11-22 01:12:02,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=3801, Unknown=5, NotChecked=124, Total=4160 [2022-11-22 01:12:02,240 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand has 43 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 34 states have internal predecessors, (49), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:12:05,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:05,639 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2022-11-22 01:12:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 01:12:05,640 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 34 states have internal predecessors, (49), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 33 [2022-11-22 01:12:05,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:05,641 INFO L225 Difference]: With dead ends: 66 [2022-11-22 01:12:05,641 INFO L226 Difference]: Without dead ends: 63 [2022-11-22 01:12:05,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1254 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=495, Invalid=5510, Unknown=5, NotChecked=152, Total=6162 [2022-11-22 01:12:05,643 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 231 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:05,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 240 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 01:12:05,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-22 01:12:05,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 50. [2022-11-22 01:12:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:12:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-11-22 01:12:05,689 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2022-11-22 01:12:05,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:05,690 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-11-22 01:12:05,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 34 states have internal predecessors, (49), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-22 01:12:05,690 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-11-22 01:12:05,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:12:05,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:05,691 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:12:05,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:12:05,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 01:12:05,895 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:12:05,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:05,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1574709164, now seen corresponding path program 2 times [2022-11-22 01:12:05,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:12:05,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479556988] [2022-11-22 01:12:05,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:05,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:12:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:12:10,000 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:12:10,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:12:10,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479556988] [2022-11-22 01:12:10,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479556988] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:12:10,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942426142] [2022-11-22 01:12:10,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:12:10,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:12:10,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:12:10,003 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:12:10,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759bcd55-06ca-474c-b1b6-8ebb3f86c6a7/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-22 01:12:11,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:12:11,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:12:11,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 167 conjunts are in the unsatisfiable core [2022-11-22 01:12:11,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:12:11,136 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 6 treesize of output 5 [2022-11-22 01:12:11,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-22 01:12:11,381 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:12:11,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:12:11,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:12:11,718 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:12:11,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:12:11,856 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-22 01:12:11,861 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-22 01:12:11,874 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:12:11,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 49 [2022-11-22 01:12:11,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:12:12,154 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:12:12,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 37 [2022-11-22 01:12:12,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-22 01:12:12,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:12:12,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:12:12,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:12,346 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 01:12:12,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 88 treesize of output 70 [2022-11-22 01:12:12,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:12,365 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-22 01:12:12,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 38 [2022-11-22 01:12:12,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:12,407 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-22 01:12:12,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 33 [2022-11-22 01:12:13,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:12:13,241 INFO L321 Elim1Store]: treesize reduction 97, result has 19.8 percent of original size [2022-11-22 01:12:13,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 241 treesize of output 132 [2022-11-22 01:12:13,281 INFO L321 Elim1Store]: treesize reduction 66, result has 19.5 percent of original size [2022-11-22 01:12:13,282 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 497 treesize of output 328 [2022-11-22 01:12:13,321 INFO L321 Elim1Store]: treesize reduction 112, result has 16.4 percent of original size [2022-11-22 01:12:13,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 456 treesize of output 293 [2022-11-22 01:12:13,354 INFO L321 Elim1Store]: treesize reduction 74, result has 21.3 percent of original size [2022-11-22 01:12:13,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 393 treesize of output 331 [2022-11-22 01:12:13,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:13,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 61 [2022-11-22 01:12:13,375 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 42 treesize of output 74 [2022-11-22 01:12:13,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:12:14,009 INFO L321 Elim1Store]: treesize reduction 61, result has 11.6 percent of original size [2022-11-22 01:12:14,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 6 case distinctions, treesize of input 311 treesize of output 112 [2022-11-22 01:12:14,029 INFO L321 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-11-22 01:12:14,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 34 [2022-11-22 01:12:14,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:12:14,177 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 01:12:14,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:12:14,514 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2843 (Array Int Int)) (v_ArrVal_2840 (Array Int Int)) (v_ArrVal_2837 (Array Int Int)) (v_ArrVal_2835 Int)) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse7 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse7 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2843)) (.cse1 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse7 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2840))) (let ((.cse5 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse6 (+ (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse2 (select (select .cse1 .cse5) .cse6)) (.cse3 (+ (select (select .cse4 .cse5) .cse6) 4))) (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_dll_append_~last~0#1.base| v_ArrVal_2837))) (store .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 8) v_ArrVal_2835))) (select (select .cse1 .cse2) .cse3)) (select (select .cse4 .cse2) .cse3)))))))) is different from false [2022-11-22 01:12:14,561 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2843 (Array Int Int)) (v_ArrVal_2840 (Array Int Int)) (v_ArrVal_2837 (Array Int Int)) (v_ArrVal_2835 Int)) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse9 (+ |c_ULTIMATE.start_dll_append_~last~0#1.offset| 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse9)) (.cse8 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~last~0#1.base|) .cse9) 4))) (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) .cse8 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2843)) (.cse2 (store (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) .cse8 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2840))) (let ((.cse6 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse7 (+ 4 (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (let ((.cse3 (select (select .cse2 .cse6) .cse7)) (.cse4 (+ (select (select .cse5 .cse6) .cse7) 4))) (select (select (let ((.cse0 (store |c_#memory_int| .cse1 v_ArrVal_2837))) (store .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 8) v_ArrVal_2835))) (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4))))))))) is different from false [2022-11-22 01:12:14,595 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2843 (Array Int Int)) (v_ArrVal_2840 (Array Int Int)) (v_ArrVal_2837 (Array Int Int)) (v_ArrVal_2835 Int)) (= (let ((.cse9 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse10 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse9) .cse10)) (.cse8 (+ (select (select |c_#memory_$Pointer$.offset| .cse9) .cse10) 4))) (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) .cse8 |c_ULTIMATE.start_dll_append_~new_last~0#1.offset|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2843)) (.cse2 (store (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) .cse8 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|)) |c_ULTIMATE.start_dll_append_~new_last~0#1.base| v_ArrVal_2840))) (let ((.cse6 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse7 (+ 4 (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (let ((.cse3 (select (select .cse2 .cse6) .cse7)) (.cse4 (+ (select (select .cse5 .cse6) .cse7) 4))) (select (select (let ((.cse0 (store |c_#memory_int| .cse1 v_ArrVal_2837))) (store .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_append_~new_last~0#1.base|) (+ |c_ULTIMATE.start_dll_append_~new_last~0#1.offset| 8) v_ArrVal_2835))) (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4))))))) |c_ULTIMATE.start_main_~data~0#1|)) is different from false [2022-11-22 01:12:14,625 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2843 (Array Int Int)) (v_ArrVal_2840 (Array Int Int)) (v_ArrVal_2837 (Array Int Int)) (v_ArrVal_2835 Int)) (= |c_ULTIMATE.start_main_~data~0#1| (let ((.cse9 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|)) (.cse10 (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_append_~head#1.base|) |c_ULTIMATE.start_dll_append_~head#1.offset|) 4))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse9) .cse10)) (.cse8 (+ (select (select |c_#memory_$Pointer$.offset| .cse9) .cse10) 4))) (let ((.cse5 (store (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) .cse8 |c_ULTIMATE.start_dll_append_#t~ret7#1.offset|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_2843)) (.cse2 (store (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) .cse8 |c_ULTIMATE.start_dll_append_#t~ret7#1.base|)) |c_ULTIMATE.start_dll_append_#t~ret7#1.base| v_ArrVal_2840))) (let ((.cse6 (select (select .cse2 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse7 (+ (select (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse3 (select (select .cse2 .cse6) .cse7)) (.cse4 (+ (select (select .cse5 .cse6) .cse7) 4))) (select (select (let ((.cse0 (store |c_#memory_int| .cse1 v_ArrVal_2837))) (store .cse0 |c_ULTIMATE.start_dll_append_#t~ret7#1.base| (store (select .cse0 |c_ULTIMATE.start_dll_append_#t~ret7#1.base|) (+ 8 |c_ULTIMATE.start_dll_append_#t~ret7#1.offset|) v_ArrVal_2835))) (select (select .cse2 .cse3) .cse4)) (select (select .cse5 .cse3) .cse4))))))))) is different from false [2022-11-22 01:12:14,741 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:12:14,741 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1383 treesize of output 1376 [2022-11-22 01:12:14,765 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:12:14,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31892 treesize of output 29932 [2022-11-22 01:12:14,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34508 treesize of output 29292 [2022-11-22 01:12:16,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5318 treesize of output 4014 [2022-11-22 01:12:25,082 WARN L233 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 199 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 01:12:25,082 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:12:25,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9905 treesize of output 17775