./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.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_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/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_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/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_bb2f827b-cc80-4e0e-b767-c8c721c3c845/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 e095bb5ea0d924a9f9ab04ab393eec77de9b1aa4e50357711d33ebab16e651dd --- 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 06:53:27,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:53:27,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:53:27,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:53:27,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:53:27,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:53:27,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:53:27,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:53:27,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:53:27,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:53:27,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:53:27,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:53:27,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:53:27,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:53:27,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:53:27,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:53:27,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:53:27,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:53:27,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:53:27,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:53:27,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:53:27,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:53:27,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:53:27,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:53:27,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:53:27,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:53:27,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:53:27,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:53:27,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:53:27,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:53:27,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:53:27,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:53:27,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:53:27,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:53:27,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:53:27,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:53:27,457 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:53:27,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:53:27,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:53:27,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:53:27,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:53:27,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:53:27,498 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:53:27,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:53:27,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:53:27,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:53:27,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:53:27,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:53:27,510 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:53:27,510 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:53:27,510 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:53:27,510 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:53:27,512 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:53:27,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:53:27,512 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:53:27,512 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:53:27,512 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:53:27,513 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:53:27,513 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:53:27,513 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:53:27,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:53:27,514 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:53:27,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:53:27,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:53:27,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:53:27,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:53:27,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:53:27,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:53:27,516 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:53:27,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:53:27,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:53:27,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:53:27,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:53:27,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:53:27,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:53:27,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:53:27,518 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:53:27,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:53:27,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:53:27,518 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:53:27,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:53:27,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:53:27,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:53:27,519 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_bb2f827b-cc80-4e0e-b767-c8c721c3c845/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e095bb5ea0d924a9f9ab04ab393eec77de9b1aa4e50357711d33ebab16e651dd [2022-11-19 06:53:27,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:53:27,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:53:27,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:53:27,819 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:53:27,820 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:53:27,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i [2022-11-19 06:53:27,897 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/data/56eb4f5aa/d975783f1e414bb3b49ace65d5e525b5/FLAG22ede1a4f [2022-11-19 06:53:28,484 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:53:28,485 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i [2022-11-19 06:53:28,501 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/data/56eb4f5aa/d975783f1e414bb3b49ace65d5e525b5/FLAG22ede1a4f [2022-11-19 06:53:28,735 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/data/56eb4f5aa/d975783f1e414bb3b49ace65d5e525b5 [2022-11-19 06:53:28,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:53:28,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:53:28,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:53:28,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:53:28,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:53:28,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:53:28" (1/1) ... [2022-11-19 06:53:28,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79142861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:28, skipping insertion in model container [2022-11-19 06:53:28,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:53:28" (1/1) ... [2022-11-19 06:53:28,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:53:28,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:53:29,327 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_bb2f827b-cc80-4e0e-b767-c8c721c3c845/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i[33021,33034] [2022-11-19 06:53:29,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:53:29,547 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:53:29,573 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_bb2f827b-cc80-4e0e-b767-c8c721c3c845/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-2.i[33021,33034] [2022-11-19 06:53:29,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:53:29,729 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:53:29,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29 WrapperNode [2022-11-19 06:53:29,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:53:29,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:53:29,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:53:29,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:53:29,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:29,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:29,874 INFO L138 Inliner]: procedures = 177, calls = 400, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1300 [2022-11-19 06:53:29,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:53:29,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:53:29,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:53:29,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:53:29,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:29,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:29,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:29,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:29,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:30,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:30,021 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:30,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:30,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:53:30,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:53:30,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:53:30,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:53:30,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (1/1) ... [2022-11-19 06:53:30,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:53:30,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:53:30,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:53:30,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:53:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:53:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 06:53:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 06:53:30,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:53:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:53:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:53:30,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:53:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:53:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:53:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:53:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:53:30,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:53:30,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:53:30,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:53:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:53:30,464 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:53:30,466 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:53:32,196 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:53:32,724 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:53:32,724 INFO L300 CfgBuilder]: Removed 69 assume(true) statements. [2022-11-19 06:53:32,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:53:32 BoogieIcfgContainer [2022-11-19 06:53:32,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:53:32,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:53:32,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:53:32,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:53:32,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:53:28" (1/3) ... [2022-11-19 06:53:32,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c4e66a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:53:32, skipping insertion in model container [2022-11-19 06:53:32,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:53:29" (2/3) ... [2022-11-19 06:53:32,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c4e66a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:53:32, skipping insertion in model container [2022-11-19 06:53:32,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:53:32" (3/3) ... [2022-11-19 06:53:32,741 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-2.i [2022-11-19 06:53:32,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:53:32,767 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:53:32,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:53:32,849 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;@4509805f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:53:32,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:53:32,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 121 states have (on average 1.7933884297520661) internal successors, (217), 132 states have internal predecessors, (217), 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 06:53:32,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:53:32,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:32,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:53:32,865 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:53:32,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:32,870 INFO L85 PathProgramCache]: Analyzing trace with hash 190255821, now seen corresponding path program 1 times [2022-11-19 06:53:32,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:32,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894040277] [2022-11-19 06:53:32,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:32,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:33,146 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 06:53:33,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:33,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894040277] [2022-11-19 06:53:33,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894040277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:33,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:53:33,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:53:33,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393684927] [2022-11-19 06:53:33,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:33,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:53:33,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:33,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:53:33,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:53:33,189 INFO L87 Difference]: Start difference. First operand has 141 states, 121 states have (on average 1.7933884297520661) internal successors, (217), 132 states have internal predecessors, (217), 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 06:53:34,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:34,654 INFO L93 Difference]: Finished difference Result 375 states and 678 transitions. [2022-11-19 06:53:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:53:34,660 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 06:53:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:34,671 INFO L225 Difference]: With dead ends: 375 [2022-11-19 06:53:34,672 INFO L226 Difference]: Without dead ends: 220 [2022-11-19 06:53:34,676 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 06:53:34,679 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 97 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:34,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 332 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 06:53:34,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-19 06:53:34,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-19 06:53:34,732 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 06:53:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-19 06:53:34,736 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-19 06:53:34,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:34,736 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-19 06:53:34,736 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 06:53:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-19 06:53:34,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 06:53:34,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:34,740 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 06:53:34,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:53:34,740 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:53:34,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:34,741 INFO L85 PathProgramCache]: Analyzing trace with hash -910103328, now seen corresponding path program 1 times [2022-11-19 06:53:34,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:34,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458142687] [2022-11-19 06:53:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:34,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:35,090 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:53:35,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090356187] [2022-11-19 06:53:35,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:35,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:53:35,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:53:35,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:53:35,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:53:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:36,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:53:36,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:53:36,543 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 06:53:36,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:53:36,658 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 06:53:36,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:36,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458142687] [2022-11-19 06:53:36,659 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:53:36,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090356187] [2022-11-19 06:53:36,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090356187] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:53:36,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [659756641] [2022-11-19 06:53:36,693 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-19 06:53:36,694 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:53:36,697 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:53:36,706 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:53:36,719 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:53:36,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:36,930 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 06:53:36,982 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:53:36,983 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 06:53:37,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,012 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 06:53:37,022 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 06:53:37,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:53:37,044 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 06:53:37,565 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 06:53:37,598 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 06:53:37,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,668 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 06:53:37,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,734 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 06:53:37,830 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:53:37,831 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 06:53:37,884 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:53:37,885 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 06:53:37,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 06:53:37,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:53:37,925 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 06:53:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:37,949 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 06:53:38,425 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 06:53:38,445 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 06:53:38,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,505 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 06:53:38,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:38,554 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 06:53:38,597 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:53:46,574 WARN L233 SmtUtils]: Spent 5.15s 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 06:53:53,855 WARN L233 SmtUtils]: Spent 5.16s 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 06:53:53,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [659756641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:53:53,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 06:53:53,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 06:53:53,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494848356] [2022-11-19 06:53:53,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:53:53,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 06:53:53,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:53:53,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 06:53:53,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 06:53:53,866 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 06:53:55,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:53:55,657 INFO L93 Difference]: Finished difference Result 262 states and 336 transitions. [2022-11-19 06:53:55,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 06:53:55,658 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 06:53:55,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:53:55,659 INFO L225 Difference]: With dead ends: 262 [2022-11-19 06:53:55,659 INFO L226 Difference]: Without dead ends: 137 [2022-11-19 06:53:55,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 06:53:55,661 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 14 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:53:55,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 267 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 12 Unchecked, 1.7s Time] [2022-11-19 06:53:55,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-19 06:53:55,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-19 06:53:55,681 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 06:53:55,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-19 06:53:55,683 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-19 06:53:55,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:53:55,684 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-19 06:53:55,684 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 06:53:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-19 06:53:55,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-19 06:53:55,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:53:55,687 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 06:53:55,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:53:55,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:53:55,900 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:53:55,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:53:55,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1562765067, now seen corresponding path program 1 times [2022-11-19 06:53:55,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:53:55,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977286563] [2022-11-19 06:53:55,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:55,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:53:56,086 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:53:56,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656864659] [2022-11-19 06:53:56,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:53:56,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:53:56,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:53:56,094 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:53:56,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:53:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:53:57,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:53:57,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:53:57,413 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 06:53:57,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:53:57,529 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 06:53:57,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:53:57,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977286563] [2022-11-19 06:53:57,529 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:53:57,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656864659] [2022-11-19 06:53:57,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656864659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:53:57,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [976638206] [2022-11-19 06:53:57,534 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-19 06:53:57,534 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:53:57,535 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:53:57,535 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:53:57,535 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:53:57,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:57,625 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 06:53:57,656 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:53:57,656 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 06:53:57,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:57,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:53:57,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:57,702 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 06:53:57,704 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 06:53:57,758 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:53:57,759 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 06:53:57,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:57,780 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 06:53:58,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,159 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 06:53:58,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,208 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 06:53:58,244 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 06:53:58,260 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 06:53:58,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,332 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 06:53:58,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,386 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 06:53:58,421 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 06:53:58,441 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 06:53:58,489 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 06:53:58,560 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 06:53:58,561 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 06:53:58,641 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 06:53:58,641 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 06:53:58,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:58,722 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 06:53:58,765 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 06:53:59,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:53:59,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,049 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 06:53:59,050 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 06:53:59,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,068 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 06:53:59,111 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:53:59,112 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 06:53:59,122 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 06:53:59,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,139 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 06:53:59,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,590 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 06:53:59,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,630 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 06:53:59,672 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 06:53:59,698 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 06:53:59,739 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 06:53:59,751 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 06:53:59,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,810 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 06:53:59,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:53:59,879 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 06:53:59,949 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 06:54:00,020 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 06:54:00,020 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 06:54:00,038 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 06:54:00,074 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 06:54:00,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:54:00,121 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 06:54:00,488 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-19 06:54:00,607 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:54:08,449 WARN L233 SmtUtils]: Spent 5.06s 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 06:54:16,160 WARN L233 SmtUtils]: Spent 5.62s 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 06:54:26,464 WARN L233 SmtUtils]: Spent 6.16s 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 06:54:40,949 WARN L233 SmtUtils]: Spent 8.34s 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 06:54:53,658 WARN L233 SmtUtils]: Spent 6.53s 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 06:54:54,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [976638206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:54:54,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 06:54:54,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 06:54:54,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156789028] [2022-11-19 06:54:54,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:54:54,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 06:54:54,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:54:54,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 06:54:54,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 06:54:54,396 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 06:54:57,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:54:58,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:55:00,478 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 06:55:01,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:55:01,042 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-19 06:55:01,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 06:55:01,043 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 06:55:01,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:55:01,045 INFO L225 Difference]: With dead ends: 267 [2022-11-19 06:55:01,045 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 06:55:01,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 53.8s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 06:55:01,047 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 9 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 289 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:55:01,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 832 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 289 Unchecked, 6.6s Time] [2022-11-19 06:55:01,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 06:55:01,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-19 06:55:01,078 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 06:55:01,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-19 06:55:01,079 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-19 06:55:01,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:55:01,080 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-19 06:55:01,080 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 06:55:01,080 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-19 06:55:01,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-19 06:55:01,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:55:01,082 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 06:55:01,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:55:01,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:01,294 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:55:01,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:55:01,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1076213087, now seen corresponding path program 1 times [2022-11-19 06:55:01,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:55:01,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318100578] [2022-11-19 06:55:01,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:01,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:55:01,447 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:55:01,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456476704] [2022-11-19 06:55:01,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:55:01,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:55:01,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:55:01,449 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:55:01,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f827b-cc80-4e0e-b767-c8c721c3c845/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:55:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:55:02,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:55:02,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:55:02,819 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 06:55:02,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:02,924 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 06:55:02,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:55:02,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318100578] [2022-11-19 06:55:02,925 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:55:02,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456476704] [2022-11-19 06:55:02,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456476704] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:55:02,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [722445977] [2022-11-19 06:55:02,928 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-19 06:55:02,929 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:55:02,929 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:55:02,929 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:55:02,930 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:55:03,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,004 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 06:55:03,047 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:55:03,047 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 06:55:03,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,065 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 06:55:03,073 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 06:55:03,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:55:03,086 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 06:55:03,334 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 06:55:03,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,378 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 06:55:03,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,418 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 06:55:03,448 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 06:55:03,528 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 06:55:03,539 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 06:55:03,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,597 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 06:55:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,646 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 06:55:03,705 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 06:55:03,778 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 06:55:03,779 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 06:55:03,793 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 06:55:03,818 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 06:55:03,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:03,867 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 06:55:04,032 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 06:55:04,036 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 06:55:04,042 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 06:55:04,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 06:55:04,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 06:55:04,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-19 06:55:04,096 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 06:55:04,102 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 06:55:04,108 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 06:55:04,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,185 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 06:55:04,209 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 06:55:04,231 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 06:55:04,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:55:04,455 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 06:55:04,476 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 06:55:04,494 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 06:55:05,451 INFO L217 Elim1Store]: Index analysis took 636 ms [2022-11-19 06:55:07,790 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-19 06:55:07,791 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 06:55:08,969 INFO L217 Elim1Store]: Index analysis took 968 ms [2022-11-19 06:55:11,862 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-19 06:55:11,863 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 06:55:25,826 WARN L233 SmtUtils]: Spent 13.89s 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 06:55:25,826 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-19 06:55:25,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-19 06:55:26,019 INFO L217 Elim1Store]: Index analysis took 121 ms [2022-11-19 06:55:49,514 WARN L233 SmtUtils]: Spent 23.49s 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 06:55:49,514 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 06:55:49,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 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 06:55:50,283 INFO L217 Elim1Store]: Index analysis took 541 ms [2022-11-19 06:56:09,317 WARN L233 SmtUtils]: Spent 18.64s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 06:56:09,318 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-19 06:56:09,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-19 06:56:10,846 INFO L217 Elim1Store]: Index analysis took 304 ms [2022-11-19 06:56:11,432 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-19 06:56:11,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-19 06:56:11,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 06:56:11,813 INFO L217 Elim1Store]: Index analysis took 225 ms [2022-11-19 06:56:13,018 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 06:56:13,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-19 06:56:19,964 INFO L217 Elim1Store]: Index analysis took 610 ms