./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS --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 f41a78d87834195eab5eb2e1b786d665ee0f261c86aa89f4e0ae15aff9e9d1ee --- 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-8393723 [2022-11-19 08:12:46,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:12:46,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:12:46,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:12:46,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:12:46,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:12:46,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:12:46,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:12:46,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:12:46,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:12:46,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:12:46,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:12:46,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:12:46,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:12:46,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:12:46,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:12:46,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:12:46,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:12:46,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:12:46,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:12:46,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:12:46,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:12:46,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:12:46,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:12:46,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:12:46,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:12:46,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:12:46,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:12:46,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:12:46,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:12:46,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:12:46,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:12:46,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:12:46,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:12:46,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:12:46,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:12:46,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:12:46,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:12:46,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:12:46,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:12:46,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:12:46,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:12:46,607 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:12:46,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:12:46,608 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:12:46,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:12:46,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:12:46,610 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:12:46,610 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:12:46,610 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:12:46,611 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:12:46,611 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:12:46,612 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:12:46,612 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:12:46,612 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:12:46,613 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:12:46,613 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:12:46,613 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:12:46,613 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:12:46,614 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:12:46,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:12:46,615 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:12:46,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:12:46,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:12:46,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:12:46,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:12:46,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:12:46,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:12:46,616 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:12:46,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:12:46,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:12:46,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:12:46,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:12:46,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:12:46,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:12:46,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:12:46,619 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:12:46,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:12:46,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:12:46,619 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:12:46,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:12:46,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:12:46,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:12:46,620 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_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41a78d87834195eab5eb2e1b786d665ee0f261c86aa89f4e0ae15aff9e9d1ee [2022-11-19 08:12:47,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:12:47,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:12:47,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:12:47,073 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:12:47,074 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:12:47,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i [2022-11-19 08:12:47,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/data/266a73f22/07769f7244084e9e836a9b518c6834c5/FLAG1fc0c94a6 [2022-11-19 08:12:47,840 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:12:47,849 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i [2022-11-19 08:12:47,876 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/data/266a73f22/07769f7244084e9e836a9b518c6834c5/FLAG1fc0c94a6 [2022-11-19 08:12:48,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/data/266a73f22/07769f7244084e9e836a9b518c6834c5 [2022-11-19 08:12:48,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:12:48,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:12:48,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:12:48,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:12:48,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:12:48,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:12:48" (1/1) ... [2022-11-19 08:12:48,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f278b63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:48, skipping insertion in model container [2022-11-19 08:12:48,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:12:48" (1/1) ... [2022-11-19 08:12:48,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:12:48,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:12:48,707 WARN L234 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_6b795cfa-7134-45a9-8718-9adb7164be85/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i[33021,33034] [2022-11-19 08:12:48,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:12:48,921 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:12:48,949 WARN L234 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_6b795cfa-7134-45a9-8718-9adb7164be85/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-3.i[33021,33034] [2022-11-19 08:12:49,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:12:49,062 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:12:49,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49 WrapperNode [2022-11-19 08:12:49,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:12:49,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:12:49,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:12:49,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:12:49,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,198 INFO L138 Inliner]: procedures = 177, calls = 448, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1437 [2022-11-19 08:12:49,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:12:49,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:12:49,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:12:49,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:12:49,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,321 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:12:49,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:12:49,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:12:49,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:12:49,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (1/1) ... [2022-11-19 08:12:49,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:12:49,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:49,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:12:49,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:12:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:12:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:12:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:12:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:12:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:12:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:12:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:12:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:12:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:12:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:12:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:12:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:12:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:12:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:12:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:12:49,803 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:12:49,809 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:12:51,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:12:52,465 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:12:52,465 INFO L300 CfgBuilder]: Removed 77 assume(true) statements. [2022-11-19 08:12:52,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:12:52 BoogieIcfgContainer [2022-11-19 08:12:52,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:12:52,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:12:52,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:12:52,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:12:52,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:12:48" (1/3) ... [2022-11-19 08:12:52,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6deb7dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:12:52, skipping insertion in model container [2022-11-19 08:12:52,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:12:49" (2/3) ... [2022-11-19 08:12:52,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6deb7dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:12:52, skipping insertion in model container [2022-11-19 08:12:52,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:12:52" (3/3) ... [2022-11-19 08:12:52,482 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test4-3.i [2022-11-19 08:12:52,504 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:12:52,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:12:52,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:12:52,612 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;@87a4dd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:12:52,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:12:52,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 133 states have (on average 1.7969924812030076) internal successors, (239), 144 states have internal predecessors, (239), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:12:52,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:12:52,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:52,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:52,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:52,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:52,637 INFO L85 PathProgramCache]: Analyzing trace with hash -810098709, now seen corresponding path program 1 times [2022-11-19 08:12:52,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:52,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25378983] [2022-11-19 08:12:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:52,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:52,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:52,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:52,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25378983] [2022-11-19 08:12:52,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25378983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:52,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:52,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:12:52,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204571789] [2022-11-19 08:12:52,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:52,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:12:52,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:12:53,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:12:53,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:12:53,035 INFO L87 Difference]: Start difference. First operand has 153 states, 133 states have (on average 1.7969924812030076) internal successors, (239), 144 states have internal predecessors, (239), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:55,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:55,936 INFO L93 Difference]: Finished difference Result 399 states and 722 transitions. [2022-11-19 08:12:55,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:12:55,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:12:55,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:55,959 INFO L225 Difference]: With dead ends: 399 [2022-11-19 08:12:55,959 INFO L226 Difference]: Without dead ends: 220 [2022-11-19 08:12:55,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:12:55,967 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 97 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:55,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 365 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-19 08:12:55,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-19 08:12:56,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-19 08:12:56,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:12:56,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-19 08:12:56,027 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-19 08:12:56,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:56,028 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-19 08:12:56,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:12:56,028 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-19 08:12:56,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 08:12:56,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:56,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:56,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:12:56,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:12:56,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash 761830316, now seen corresponding path program 1 times [2022-11-19 08:12:56,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:56,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703873055] [2022-11-19 08:12:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:56,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:56,355 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:12:56,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552217271] [2022-11-19 08:12:56,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:56,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:12:56,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:12:56,360 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:12:56,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:12:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:57,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:12:57,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:12:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:58,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:58,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:12:58,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:58,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703873055] [2022-11-19 08:12:58,207 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:12:58,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552217271] [2022-11-19 08:12:58,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552217271] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:12:58,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [336994525] [2022-11-19 08:12:58,242 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-19 08:12:58,243 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:12:58,248 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:12:58,255 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:12:58,257 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:12:58,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:12:58,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,488 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:12:58,490 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 08:12:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:12:58,572 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:12:58,573 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 30 [2022-11-19 08:12:58,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:58,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:12:58,665 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:12:58,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:12:59,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:12:59,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:12:59,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:12:59,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:12:59,536 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:12:59,536 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 30 [2022-11-19 08:12:59,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:12:59,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:12:59,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,601 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:12:59,602 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 08:12:59,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:12:59,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:12:59,689 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:12:59,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:13:00,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:13:00,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:00,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-19 08:13:00,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:13:00,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:13:00,466 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:13:08,529 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:13:16,184 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:13:16,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [336994525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:13:16,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:13:16,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 08:13:16,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226006810] [2022-11-19 08:13:16,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:13:16,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:13:16,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:13:16,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:13:16,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 08:13:16,195 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:18,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:20,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:21,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:13:22,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:13:22,802 INFO L93 Difference]: Finished difference Result 262 states and 336 transitions. [2022-11-19 08:13:22,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:13:22,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-19 08:13:22,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:13:22,805 INFO L225 Difference]: With dead ends: 262 [2022-11-19 08:13:22,805 INFO L226 Difference]: Without dead ends: 137 [2022-11-19 08:13:22,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 08:13:22,808 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 8 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 73 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:13:22,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 465 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 73 Unchecked, 6.5s Time] [2022-11-19 08:13:22,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-19 08:13:22,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-19 08:13:22,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:13:22,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-19 08:13:22,832 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-19 08:13:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:13:22,833 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-19 08:13:22,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:13:22,833 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-19 08:13:22,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-19 08:13:22,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:13:22,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:13:22,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:13:23,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-19 08:13:23,049 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:13:23,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:13:23,050 INFO L85 PathProgramCache]: Analyzing trace with hash 583681991, now seen corresponding path program 1 times [2022-11-19 08:13:23,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:13:23,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477507300] [2022-11-19 08:13:23,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:23,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:13:23,259 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:13:23,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2002873761] [2022-11-19 08:13:23,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:13:23,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:13:23,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:13:23,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:13:23,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:13:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:13:24,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:13:24,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:13:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:13:24,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:13:24,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:13:24,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:13:24,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477507300] [2022-11-19 08:13:24,857 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:13:24,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002873761] [2022-11-19 08:13:24,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002873761] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:13:24,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1773859786] [2022-11-19 08:13:24,862 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-19 08:13:24,862 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:13:24,863 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:13:24,863 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:13:24,863 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:13:24,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:24,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:13:24,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:24,986 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:13:24,987 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 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 08:13:25,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:13:25,045 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:13:25,046 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 30 [2022-11-19 08:13:25,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:13:25,135 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:13:25,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:13:25,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:13:25,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-19 08:13:25,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:13:25,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:13:25,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:13:25,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:13:25,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:13:25,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:13:25,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:13:25,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:25,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:13:26,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:13:26,096 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:13:26,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-19 08:13:26,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-19 08:13:26,537 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:13:26,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:13:26,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:26,555 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 22 treesize of output 7 [2022-11-19 08:13:26,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:26,571 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 22 treesize of output 7 [2022-11-19 08:13:26,580 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 [2022-11-19 08:13:26,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:26,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:13:26,594 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 33 treesize of output 39 [2022-11-19 08:13:26,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:26,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:26,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:26,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:26,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:26,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:13:27,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:13:27,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:13:27,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:13:27,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:13:27,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:13:27,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:13:27,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:13:27,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:13:27,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:13:27,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:13:27,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:13:27,581 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:13:27,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-19 08:13:27,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-19 08:13:27,980 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-19 08:13:28,093 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:13:42,364 WARN L233 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:13:52,974 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:14:05,893 WARN L233 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:14:18,131 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:14:18,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1773859786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:14:18,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:14:18,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 08:14:18,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884422757] [2022-11-19 08:14:18,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:14:18,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:14:18,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:14:18,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:14:18,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-19 08:14:18,671 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:14:20,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:14:20,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:14:20,796 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-19 08:14:20,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:14:20,802 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2022-11-19 08:14:20,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:14:20,803 INFO L225 Difference]: With dead ends: 267 [2022-11-19 08:14:20,804 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 08:14:20,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 50.6s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-19 08:14:20,805 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 6 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 422 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:14:20,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 917 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 422 Unchecked, 2.1s Time] [2022-11-19 08:14:20,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 08:14:20,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-19 08:14:20,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-19 08:14:20,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-19 08:14:20,836 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-19 08:14:20,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:14:20,836 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-19 08:14:20,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:14:20,837 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-19 08:14:20,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-19 08:14:20,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:14:20,839 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:14:20,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:14:21,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:21,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:14:21,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:14:21,052 INFO L85 PathProgramCache]: Analyzing trace with hash 501515405, now seen corresponding path program 1 times [2022-11-19 08:14:21,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:14:21,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113785016] [2022-11-19 08:14:21,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:21,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:14:21,235 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:14:21,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231295550] [2022-11-19 08:14:21,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:14:21,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:14:21,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:14:21,239 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:14:21,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b795cfa-7134-45a9-8718-9adb7164be85/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:14:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:14:22,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:14:22,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:14:22,609 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:14:22,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:14:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:14:22,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:14:22,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113785016] [2022-11-19 08:14:22,749 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:14:22,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231295550] [2022-11-19 08:14:22,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231295550] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:14:22,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1793133511] [2022-11-19 08:14:22,753 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-19 08:14:22,753 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:14:22,754 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:14:22,754 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:14:22,754 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:14:22,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:22,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:14:22,895 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:14:22,896 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 30 [2022-11-19 08:14:22,951 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:14:22,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:14:22,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:22,968 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 22 treesize of output 7 [2022-11-19 08:14:22,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:22,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:14:22,978 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 33 treesize of output 39 [2022-11-19 08:14:23,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:14:23,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:14:23,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-19 08:14:23,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:14:23,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:14:23,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:14:23,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:14:23,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:14:23,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:14:23,723 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 08:14:23,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-19 08:14:23,804 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:14:23,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-19 08:14:23,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:23,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:14:23,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:14:24,063 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 [2022-11-19 08:14:24,068 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 [2022-11-19 08:14:24,073 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 13 treesize of output 9 [2022-11-19 08:14:24,122 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-19 08:14:24,122 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 53 treesize of output 56 [2022-11-19 08:14:24,157 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:14:24,157 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 47 treesize of output 50 [2022-11-19 08:14:24,190 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:14:24,191 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 43 treesize of output 46 [2022-11-19 08:14:24,232 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 14 treesize of output 10 [2022-11-19 08:14:24,237 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 14 treesize of output 10 [2022-11-19 08:14:24,244 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 16 treesize of output 12 [2022-11-19 08:14:24,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 08:14:24,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 08:14:24,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:14:24,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:14:24,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 08:14:24,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 08:14:24,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:14:25,952 INFO L217 Elim1Store]: Index analysis took 509 ms [2022-11-19 08:14:30,975 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 60 DAG size of output: 18 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:14:30,976 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-19 08:14:30,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-19 08:14:31,927 INFO L217 Elim1Store]: Index analysis took 713 ms [2022-11-19 08:14:33,682 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-19 08:14:33,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-19 08:14:43,675 WARN L233 SmtUtils]: Spent 9.67s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:14:43,676 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-19 08:14:43,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-19 08:14:43,881 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-11-19 08:15:10,746 WARN L233 SmtUtils]: Spent 26.86s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:15:10,747 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 08:15:10,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1824 [2022-11-19 08:15:11,695 INFO L217 Elim1Store]: Index analysis took 700 ms [2022-11-19 08:15:39,048 WARN L233 SmtUtils]: Spent 26.59s on a formula simplification. DAG size of input: 252 DAG size of output: 150 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:15:39,050 INFO L321 Elim1Store]: treesize reduction 2438, result has 32.1 percent of original size [2022-11-19 08:15:39,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 2093 [2022-11-19 08:15:39,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:15:40,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:15:40,281 INFO L217 Elim1Store]: Index analysis took 512 ms [2022-11-19 08:15:40,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 89 [2022-11-19 08:15:40,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:40,407 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-19 08:15:40,463 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 08:15:40,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:15:40,907 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 71 [2022-11-19 08:15:41,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:41,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:41,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2022-11-19 08:15:42,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:15:42,159 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 19 treesize of output 13 [2022-11-19 08:18:58,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:18:58,371 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 19 treesize of output 13