./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/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_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/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_ab339da1-526b-4b0d-8b6d-7bc5844bab40/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 08dbe1d8baf218c90d79c7aa96b8d857526ff0e474f0acb076b8cd9ca4d11ff2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:28:24,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:28:24,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:28:24,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:28:24,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:28:24,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:28:24,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:28:24,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:28:24,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:28:24,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:28:24,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:28:24,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:28:24,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:28:24,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:28:24,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:28:24,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:28:24,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:28:24,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:28:24,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:28:24,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:28:24,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:28:24,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:28:24,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:28:24,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:28:24,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:28:24,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:28:24,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:28:24,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:28:24,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:28:24,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:28:24,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:28:24,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:28:24,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:28:24,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:28:24,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:28:24,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:28:24,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:28:24,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:28:24,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:28:24,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:28:24,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:28:24,455 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:28:24,476 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:28:24,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:28:24,477 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:28:24,477 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:28:24,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:28:24,478 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:28:24,478 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:28:24,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:28:24,478 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:28:24,478 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:28:24,479 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:28:24,479 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:28:24,479 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:28:24,479 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:28:24,479 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:28:24,480 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:28:24,480 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:28:24,480 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:28:24,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:28:24,481 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:28:24,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:28:24,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:28:24,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:28:24,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:28:24,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:28:24,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:28:24,482 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:28:24,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:28:24,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:28:24,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:28:24,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:28:24,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:28:24,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:28:24,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:28:24,484 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:28:24,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:28:24,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:28:24,484 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:28:24,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:28:24,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:28:24,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:28:24,485 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_ab339da1-526b-4b0d-8b6d-7bc5844bab40/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08dbe1d8baf218c90d79c7aa96b8d857526ff0e474f0acb076b8cd9ca4d11ff2 [2022-11-19 08:28:24,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:28:24,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:28:24,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:28:24,831 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:28:24,832 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:28:24,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i [2022-11-19 08:28:24,906 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/data/ac2652b7d/425e224c1f8446b0ab4fc655ae65f8ae/FLAG5d1ce8040 [2022-11-19 08:28:25,561 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:28:25,561 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i [2022-11-19 08:28:25,578 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/data/ac2652b7d/425e224c1f8446b0ab4fc655ae65f8ae/FLAG5d1ce8040 [2022-11-19 08:28:25,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/data/ac2652b7d/425e224c1f8446b0ab4fc655ae65f8ae [2022-11-19 08:28:25,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:28:25,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:28:25,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:28:25,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:28:25,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:28:25,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:28:25" (1/1) ... [2022-11-19 08:28:25,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2766655e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:25, skipping insertion in model container [2022-11-19 08:28:25,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:28:25" (1/1) ... [2022-11-19 08:28:25,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:28:25,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:28:26,460 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_ab339da1-526b-4b0d-8b6d-7bc5844bab40/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i[33021,33034] [2022-11-19 08:28:26,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:28:26,679 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:28:26,730 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_ab339da1-526b-4b0d-8b6d-7bc5844bab40/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i[33021,33034] [2022-11-19 08:28:26,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:28:26,835 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:28:26,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26 WrapperNode [2022-11-19 08:28:26,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:28:26,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:28:26,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:28:26,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:28:26,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:26,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:27,005 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-11-19 08:28:27,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:28:27,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:28:27,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:28:27,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:28:27,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:27,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:27,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:27,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:27,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:27,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:27,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:27,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:27,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:28:27,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:28:27,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:28:27,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:28:27,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (1/1) ... [2022-11-19 08:28:27,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:28:27,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:27,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:28:27,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:28:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:28:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:28:27,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:28:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:28:27,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:28:27,259 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:28:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:28:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:28:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:28:27,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:28:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:28:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:28:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:28:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:28:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:28:27,602 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:28:27,607 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:28:29,888 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:28:30,338 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:28:30,339 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-11-19 08:28:30,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:30 BoogieIcfgContainer [2022-11-19 08:28:30,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:28:30,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:28:30,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:28:30,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:28:30,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:28:25" (1/3) ... [2022-11-19 08:28:30,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463b181a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:28:30, skipping insertion in model container [2022-11-19 08:28:30,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:28:26" (2/3) ... [2022-11-19 08:28:30,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463b181a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:28:30, skipping insertion in model container [2022-11-19 08:28:30,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:28:30" (3/3) ... [2022-11-19 08:28:30,351 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test4-1.i [2022-11-19 08:28:30,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:28:30,371 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:28:30,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:28:30,450 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;@7c00e71b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:28:30,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:28:30,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:28:30,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:28:30,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:30,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:30,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:28:30,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:30,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-11-19 08:28:30,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:30,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431293019] [2022-11-19 08:28:30,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:30,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:30,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:30,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:30,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431293019] [2022-11-19 08:28:30,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431293019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:30,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:28:30,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:28:30,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187600054] [2022-11-19 08:28:30,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:30,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:28:30,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:30,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:28:30,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:28:30,828 INFO L87 Difference]: Start difference. First operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:28:33,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:28:36,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:28:38,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:28:38,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:28:38,468 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-11-19 08:28:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:28:38,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:28:38,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:28:38,497 INFO L225 Difference]: With dead ends: 347 [2022-11-19 08:28:38,499 INFO L226 Difference]: Without dead ends: 220 [2022-11-19 08:28:38,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:28:38,506 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 96 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:28:38,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-19 08:28:38,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-19 08:28:38,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-19 08:28:38,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:28:38,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-19 08:28:38,578 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-19 08:28:38,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:28:38,578 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-19 08:28:38,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:28:38,579 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-19 08:28:38,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 08:28:38,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:28:38,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:28:38,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:28:38,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:28:38,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:28:38,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-11-19 08:28:38,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:28:38,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696684175] [2022-11-19 08:28:38,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:38,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:28:38,942 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:28:38,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1999005514] [2022-11-19 08:28:38,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:28:38,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:28:38,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:28:38,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:28:38,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:28:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:28:40,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:28:40,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:28:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:40,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:28:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:28:40,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:28:40,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696684175] [2022-11-19 08:28:40,767 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:28:40,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999005514] [2022-11-19 08:28:40,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999005514] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:28:40,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [173599422] [2022-11-19 08:28:40,795 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-19 08:28:40,795 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:28:40,800 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:28:40,806 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:28:40,812 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:28:41,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:28:41,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:41,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,073 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:28:41,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 08:28:41,131 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:28:41,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:28:41,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:28:41,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:28:41,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:28:41,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:28:41,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:28:41,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:28:41,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:28:41,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,844 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:28:41,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 08:28:41,892 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:28:41,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-19 08:28:41,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:41,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:28:41,978 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:28:41,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:28:42,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:28:42,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:28:42,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:28:42,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:28:42,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-19 08:28:42,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:28:42,723 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:28:48,967 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:28:58,435 WARN L233 SmtUtils]: Spent 7.35s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:28:58,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [173599422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:28:58,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:28:58,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 08:28:58,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042676684] [2022-11-19 08:28:58,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:28:58,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:28:58,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:28:58,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:28:58,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-19 08:28:58,454 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:29:00,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:29:04,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:29:04,381 INFO L93 Difference]: Finished difference Result 262 states and 336 transitions. [2022-11-19 08:29:04,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:29:04,382 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-19 08:29:04,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:29:04,383 INFO L225 Difference]: With dead ends: 262 [2022-11-19 08:29:04,384 INFO L226 Difference]: Without dead ends: 137 [2022-11-19 08:29:04,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-19 08:29:04,386 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 7 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:29:04,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 467 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 69 Unchecked, 5.9s Time] [2022-11-19 08:29:04,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-19 08:29:04,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-19 08:29:04,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:29:04,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-19 08:29:04,406 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-19 08:29:04,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:29:04,407 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-19 08:29:04,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:29:04,408 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-19 08:29:04,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-19 08:29:04,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:29:04,410 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:29:04,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:29:04,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:29:04,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:29:04,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:29:04,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-11-19 08:29:04,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:29:04,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698886647] [2022-11-19 08:29:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:29:04,802 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:29:04,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197600388] [2022-11-19 08:29:04,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:29:04,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:29:04,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:29:04,804 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:29:04,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:29:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:29:06,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:29:06,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:29:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:29:06,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:29:06,310 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:29:06,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:29:06,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698886647] [2022-11-19 08:29:06,311 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:29:06,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197600388] [2022-11-19 08:29:06,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197600388] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:29:06,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1370218045] [2022-11-19 08:29:06,316 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-19 08:29:06,316 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:29:06,318 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:29:06,318 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:29:06,318 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:29:06,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:29:06,487 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:29:06,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:29:06,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:29:06,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:29:06,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:06,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-19 08:29:06,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:29:06,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:29:06,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:06,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:29:07,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:29:07,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:29:07,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:29:07,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:29:07,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:29:07,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:29:07,351 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:29:07,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-19 08:29:07,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-19 08:29:07,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:29:07,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:29:07,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:29:07,813 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:29:07,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:29:07,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:29:07,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:07,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:29:07,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-19 08:29:07,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:29:08,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:29:08,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:29:08,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:29:08,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:29:08,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:29:08,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:29:08,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:29:08,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:29:08,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:29:08,717 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:29:08,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-19 08:29:08,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-19 08:29:08,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:29:08,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:29:08,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:29:09,217 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-19 08:29:09,341 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:29:17,402 WARN L233 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:29:25,451 WARN L233 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:29:36,007 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:29:48,604 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:01,812 WARN L233 SmtUtils]: Spent 7.02s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:30:02,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1370218045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:30:02,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:30:02,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 08:30:02,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540010696] [2022-11-19 08:30:02,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:30:02,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:30:02,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:30:02,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:30:02,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 08:30:02,425 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:30:07,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:30:09,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:30:09,314 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-19 08:30:09,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:30:09,315 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2022-11-19 08:30:09,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:30:09,316 INFO L225 Difference]: With dead ends: 267 [2022-11-19 08:30:09,316 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 08:30:09,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 53.1s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 08:30:09,318 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 8 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 220 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:30:09,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 647 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 1 Unknown, 220 Unchecked, 6.8s Time] [2022-11-19 08:30:09,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 08:30:09,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-19 08:30:09,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-19 08:30:09,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-19 08:30:09,348 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-19 08:30:09,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:30:09,349 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-19 08:30:09,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:30:09,349 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-19 08:30:09,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-19 08:30:09,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:30:09,351 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:30:09,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:30:09,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:30:09,563 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:30:09,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:30:09,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-11-19 08:30:09,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:30:09,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541287032] [2022-11-19 08:30:09,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:09,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:30:09,720 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:30:09,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155868017] [2022-11-19 08:30:09,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:30:09,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:30:09,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:30:09,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:30:09,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab339da1-526b-4b0d-8b6d-7bc5844bab40/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:30:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:30:11,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:30:11,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:30:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:30:11,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:30:11,257 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:30:11,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:30:11,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541287032] [2022-11-19 08:30:11,258 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:30:11,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155868017] [2022-11-19 08:30:11,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155868017] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:30:11,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [652267355] [2022-11-19 08:30:11,262 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-19 08:30:11,262 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:30:11,262 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:30:11,263 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:30:11,263 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:30:11,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:30:11,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,350 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:30:11,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 08:30:11,395 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:30:11,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 08:30:11,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:30:11,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:30:11,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:30:11,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:30:11,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:30:11,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:30:11,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:30:11,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:30:11,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:11,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:30:12,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:30:12,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:30:12,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:30:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:30:12,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:30:12,240 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 08:30:12,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-19 08:30:12,315 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:30:12,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-19 08:30:12,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:30:12,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:30:12,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:30:12,507 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 08:30:12,514 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 08:30:12,521 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 08:30:12,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:30:12,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:30:12,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:30:12,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 08:30:12,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 08:30:12,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:30:12,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:30:12,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 08:30:12,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 08:30:12,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:30:13,676 INFO L217 Elim1Store]: Index analysis took 497 ms [2022-11-19 08:30:16,991 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-19 08:30:16,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-19 08:30:17,851 INFO L217 Elim1Store]: Index analysis took 455 ms [2022-11-19 08:30:21,761 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-19 08:30:21,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-19 08:30:36,377 WARN L233 SmtUtils]: Spent 14.55s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:30:36,378 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-19 08:30:36,378 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 08:31:06,735 WARN L233 SmtUtils]: Spent 30.20s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:31:06,736 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 08:31:06,737 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 1829 [2022-11-19 08:31:07,427 INFO L217 Elim1Store]: Index analysis took 512 ms [2022-11-19 08:31:27,551 WARN L233 SmtUtils]: Spent 19.53s 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 08:31:27,553 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-19 08:31:27,553 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 08:31:28,870 INFO L217 Elim1Store]: Index analysis took 103 ms [2022-11-19 08:31:29,233 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-19 08:31:29,234 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 08:31:29,319 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 08:31:29,677 INFO L217 Elim1Store]: Index analysis took 251 ms [2022-11-19 08:31:30,444 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:31:30,444 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 08:31:36,162 INFO L217 Elim1Store]: Index analysis took 736 ms