./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh --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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- 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-2329fc7 [2022-12-14 13:39:52,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:39:52,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:39:52,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:39:52,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:39:52,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:39:52,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:39:52,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:39:52,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:39:52,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:39:52,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:39:52,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:39:52,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:39:52,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:39:52,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:39:52,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:39:52,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:39:52,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:39:52,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:39:52,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:39:52,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:39:52,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:39:52,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:39:52,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:39:52,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:39:52,395 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:39:52,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:39:52,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:39:52,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:39:52,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:39:52,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:39:52,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:39:52,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:39:52,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:39:52,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:39:52,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:39:52,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:39:52,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:39:52,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:39:52,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:39:52,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:39:52,403 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:39:52,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:39:52,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:39:52,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:39:52,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:39:52,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:39:52,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:39:52,419 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:39:52,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:39:52,420 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:39:52,420 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:39:52,420 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:39:52,420 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:39:52,420 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:39:52,420 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:39:52,421 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:39:52,421 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:39:52,421 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:39:52,421 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:39:52,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:39:52,422 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:39:52,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:39:52,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:39:52,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:39:52,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:39:52,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:39:52,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:39:52,423 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:39:52,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:39:52,423 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:39:52,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:39:52,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:39:52,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:39:52,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:39:52,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:39:52,424 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:39:52,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:39:52,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:39:52,424 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:39:52,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:39:52,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:39:52,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:39:52,425 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_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2022-12-14 13:39:52,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:39:52,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:39:52,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:39:52,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:39:52,664 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:39:52,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2022-12-14 13:39:55,220 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:39:55,481 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:39:55,482 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2022-12-14 13:39:55,495 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/data/225df74a0/eb505065888e4a09be5a02bb5625e814/FLAG4cee91c68 [2022-12-14 13:39:55,509 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/data/225df74a0/eb505065888e4a09be5a02bb5625e814 [2022-12-14 13:39:55,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:39:55,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:39:55,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:39:55,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:39:55,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:39:55,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:39:55" (1/1) ... [2022-12-14 13:39:55,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ca13d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:55, skipping insertion in model container [2022-12-14 13:39:55,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:39:55" (1/1) ... [2022-12-14 13:39:55,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:39:55,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:39:55,978 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2022-12-14 13:39:56,056 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:39:56,058 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2022-12-14 13:39:56,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:39:56,078 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:39:56,097 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2022-12-14 13:39:56,142 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 13:39:56,143 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2022-12-14 13:39:56,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:39:56,176 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:39:56,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56 WrapperNode [2022-12-14 13:39:56,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:39:56,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:39:56,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:39:56,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:39:56,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,264 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-12-14 13:39:56,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:39:56,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:39:56,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:39:56,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:39:56,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:39:56,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:39:56,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:39:56,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:39:56,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (1/1) ... [2022-12-14 13:39:56,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:39:56,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:39:56,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:39:56,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:39:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:39:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 13:39:56,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 13:39:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:39:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:39:56,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:39:56,664 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:39:56,666 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:39:58,118 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:39:58,572 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:39:58,572 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-12-14 13:39:58,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:39:58 BoogieIcfgContainer [2022-12-14 13:39:58,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:39:58,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:39:58,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:39:58,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:39:58,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:39:55" (1/3) ... [2022-12-14 13:39:58,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22812632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:39:58, skipping insertion in model container [2022-12-14 13:39:58,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:39:56" (2/3) ... [2022-12-14 13:39:58,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22812632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:39:58, skipping insertion in model container [2022-12-14 13:39:58,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:39:58" (3/3) ... [2022-12-14 13:39:58,582 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-3.i [2022-12-14 13:39:58,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:39:58,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:39:58,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:39:58,643 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;@66d7f712, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:39:58,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:39:58,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 13:39:58,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 13:39:58,654 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:39:58,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 13:39:58,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:39:58,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:39:58,660 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-12-14 13:39:58,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:39:58,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427489518] [2022-12-14 13:39:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:39:58,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:39:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:39:58,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:39:58,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427489518] [2022-12-14 13:39:58,795 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 13:39:58,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606017074] [2022-12-14 13:39:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:39:58,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:39:58,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:39:58,797 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:39:58,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:39:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:39:58,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 13:39:58,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:39:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:39:58,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:39:58,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606017074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:39:58,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:39:58,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:39:58,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544201548] [2022-12-14 13:39:58,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:39:58,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:39:58,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:39:59,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:39:59,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:39:59,015 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:39:59,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:39:59,863 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-12-14 13:39:59,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:39:59,868 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 13:39:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:39:59,875 INFO L225 Difference]: With dead ends: 353 [2022-12-14 13:39:59,875 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 13:39:59,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:39:59,880 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 13:39:59,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 13:39:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 13:39:59,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 13:39:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 13:39:59,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-12-14 13:39:59,927 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-12-14 13:39:59,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:39:59,928 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-12-14 13:39:59,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:39:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-12-14 13:39:59,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 13:39:59,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:39:59,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:39:59,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:40:00,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:40:00,132 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:40:00,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:40:00,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-12-14 13:40:00,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:40:00,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993814928] [2022-12-14 13:40:00,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:40:00,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:40:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:40:00,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:40:00,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993814928] [2022-12-14 13:40:00,177 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 13:40:00,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366707879] [2022-12-14 13:40:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:40:00,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:40:00,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:40:00,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:40:00,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:40:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:40:00,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 13:40:00,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:40:00,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:40:00,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 13:40:00,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366707879] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:40:00,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:40:00,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:40:00,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64272030] [2022-12-14 13:40:00,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:40:00,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:40:00,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:40:00,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:40:00,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:40:00,386 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:40:02,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:40:02,050 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-12-14 13:40:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:40:02,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-14 13:40:02,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:40:02,057 INFO L225 Difference]: With dead ends: 342 [2022-12-14 13:40:02,057 INFO L226 Difference]: Without dead ends: 290 [2022-12-14 13:40:02,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:40:02,058 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 13:40:02,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 13:40:02,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-12-14 13:40:02,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-12-14 13:40:02,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 13:40:02,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-12-14 13:40:02,069 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-12-14 13:40:02,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:40:02,070 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-12-14 13:40:02,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:40:02,070 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-12-14 13:40:02,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 13:40:02,071 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:40:02,071 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:40:02,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:40:02,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:40:02,272 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:40:02,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:40:02,272 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-12-14 13:40:02,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:40:02,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754040487] [2022-12-14 13:40:02,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:40:02,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:40:02,470 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:40:02,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198268670] [2022-12-14 13:40:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:40:02,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:40:02,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:40:02,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:40:02,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:40:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:40:03,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:40:03,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:40:03,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:40:03,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:40:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:40:03,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:40:03,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754040487] [2022-12-14 13:40:03,460 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:40:03,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198268670] [2022-12-14 13:40:03,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198268670] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:40:03,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [716381004] [2022-12-14 13:40:03,481 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 13:40:03,481 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:40:03,484 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:40:03,489 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:40:03,490 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:40:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:03,647 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 13:40:03,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 13:40:03,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:03,662 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 [2022-12-14 13:40:03,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:03,704 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 [2022-12-14 13:40:03,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:03,713 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:40:03,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:03,726 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 13:40:03,727 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 [2022-12-14 13:40:03,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:03,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:03,768 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 13:40:03,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 13:40:03,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:03,791 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 [2022-12-14 13:40:03,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:03,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:03,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 13:40:04,152 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 [2022-12-14 13:40:04,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,193 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 [2022-12-14 13:40:04,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,229 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 [2022-12-14 13:40:04,267 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 [2022-12-14 13:40:04,612 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 [2022-12-14 13:40:04,625 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 [2022-12-14 13:40:04,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,663 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 [2022-12-14 13:40:04,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:04,691 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 [2022-12-14 13:40:04,720 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:40:18,550 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:40:18,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [716381004] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:40:18,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 13:40:18,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 13:40:18,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390331464] [2022-12-14 13:40:18,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:40:18,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 13:40:18,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:40:18,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 13:40:18,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-12-14 13:40:18,555 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:40:20,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:40:22,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:40:29,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:40:30,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:40:30,255 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-12-14 13:40:30,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 13:40:30,256 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-12-14 13:40:30,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:40:30,257 INFO L225 Difference]: With dead ends: 310 [2022-12-14 13:40:30,257 INFO L226 Difference]: Without dead ends: 161 [2022-12-14 13:40:30,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-12-14 13:40:30,258 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-12-14 13:40:30,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 2 Unknown, 0 Unchecked, 11.7s Time] [2022-12-14 13:40:30,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-12-14 13:40:30,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-12-14 13:40:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 13:40:30,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-12-14 13:40:30,272 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-12-14 13:40:30,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:40:30,272 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-12-14 13:40:30,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:40:30,272 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-12-14 13:40:30,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 13:40:30,274 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:40:30,274 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:40:30,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 13:40:30,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:40:30,476 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:40:30,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:40:30,477 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-12-14 13:40:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:40:30,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793474319] [2022-12-14 13:40:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:40:30,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:40:30,638 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:40:30,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [337747917] [2022-12-14 13:40:30,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:40:30,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:40:30,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:40:30,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:40:30,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 13:40:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:40:31,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:40:31,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:40:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 13:40:31,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:40:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 13:40:31,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:40:31,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793474319] [2022-12-14 13:40:31,481 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:40:31,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337747917] [2022-12-14 13:40:31,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337747917] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:40:31,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [252177603] [2022-12-14 13:40:31,486 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 13:40:31,486 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:40:31,486 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:40:31,486 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:40:31,486 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:40:31,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,562 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 13:40:31,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 13:40:31,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,572 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 [2022-12-14 13:40:31,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,631 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 13:40:31,631 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 13:40:31,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,642 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 [2022-12-14 13:40:31,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,678 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 13:40:31,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 13:40:31,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:40:31,692 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 [2022-12-14 13:40:31,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,706 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 [2022-12-14 13:40:31,915 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 [2022-12-14 13:40:31,929 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 [2022-12-14 13:40:31,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,965 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 [2022-12-14 13:40:31,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:31,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,001 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 [2022-12-14 13:40:32,038 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 [2022-12-14 13:40:32,051 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 [2022-12-14 13:40:32,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,095 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 [2022-12-14 13:40:32,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,137 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 [2022-12-14 13:40:32,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,194 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 [2022-12-14 13:40:32,231 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 [2022-12-14 13:40:32,255 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 [2022-12-14 13:40:32,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,315 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 13:40:32,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 13:40:32,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,385 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 13:40:32,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 13:40:32,832 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 [2022-12-14 13:40:32,845 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 [2022-12-14 13:40:32,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,882 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 [2022-12-14 13:40:32,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,912 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 [2022-12-14 13:40:32,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:32,992 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 9897003 treesize of output 5376293 [2022-12-14 13:40:33,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,027 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 9897003 treesize of output 5376293 [2022-12-14 13:40:33,054 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 [2022-12-14 13:40:33,065 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 [2022-12-14 13:40:33,110 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 [2022-12-14 13:40:33,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,147 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 [2022-12-14 13:40:33,178 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 [2022-12-14 13:40:33,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,233 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 13:40:33,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 13:40:33,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:40:33,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-12-14 13:40:33,461 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-12-14 13:40:33,531 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:40:46,749 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:40:56,508 WARN L233 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:41:08,769 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:41:23,649 WARN L233 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 13:41:24,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [252177603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:41:24,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 13:41:24,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 13:41:24,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335116358] [2022-12-14 13:41:24,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:41:24,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 13:41:24,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:41:24,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 13:41:24,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 13:41:24,225 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 13:41:26,691 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 [0] [2022-12-14 13:41:28,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:41:30,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:41:33,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:41:35,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:41:37,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:41:39,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:41:41,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:41:43,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:41:47,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:41:49,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:41:50,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 13:41:54,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 13:41:55,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:41:55,156 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-12-14 13:41:55,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 13:41:55,157 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-12-14 13:41:55,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:41:55,158 INFO L225 Difference]: With dead ends: 315 [2022-12-14 13:41:55,158 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 13:41:55,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 50.7s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 13:41:55,160 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time [2022-12-14 13:41:55,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 611 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 9 Unknown, 0 Unchecked, 30.9s Time] [2022-12-14 13:41:55,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 13:41:55,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-14 13:41:55,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 13:41:55,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-12-14 13:41:55,175 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-12-14 13:41:55,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:41:55,175 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-12-14 13:41:55,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 13:41:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-12-14 13:41:55,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 13:41:55,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:41:55,177 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:41:55,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 13:41:55,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:41:55,379 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:41:55,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:41:55,380 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-12-14 13:41:55,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:41:55,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141387129] [2022-12-14 13:41:55,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:41:55,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:41:55,526 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:41:55,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117123475] [2022-12-14 13:41:55,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:41:55,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:41:55,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:41:55,527 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:41:55,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_057d55e0-d1dd-4385-8229-64e14210a01c/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 13:41:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:41:56,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:41:56,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:41:56,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 13:41:56,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:41:56,390 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 13:41:56,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:41:56,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141387129] [2022-12-14 13:41:56,390 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 13:41:56,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117123475] [2022-12-14 13:41:56,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117123475] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:41:56,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1592094416] [2022-12-14 13:41:56,394 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 13:41:56,394 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:41:56,394 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:41:56,395 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:41:56,395 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:41:56,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,458 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 13:41:56,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-12-14 13:41:56,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,469 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 [2022-12-14 13:41:56,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,503 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 [2022-12-14 13:41:56,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,531 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 13:41:56,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 13:41:56,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,564 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 13:41:56,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 13:41:56,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:41:56,575 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 [2022-12-14 13:41:56,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,588 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 [2022-12-14 13:41:56,785 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 [2022-12-14 13:41:56,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,823 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 [2022-12-14 13:41:56,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,853 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 [2022-12-14 13:41:56,878 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 [2022-12-14 13:41:56,901 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 [2022-12-14 13:41:56,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,948 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 [2022-12-14 13:41:56,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:56,982 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 [2022-12-14 13:41:57,005 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 [2022-12-14 13:41:57,041 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 [2022-12-14 13:41:57,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,086 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 13:41:57,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-12-14 13:41:57,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,155 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 13:41:57,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-12-14 13:41:57,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,192 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 [2022-12-14 13:41:57,221 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 [2022-12-14 13:41:57,321 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 [2022-12-14 13:41:57,325 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 [2022-12-14 13:41:57,330 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 [2022-12-14 13:41:57,348 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 [2022-12-14 13:41:57,355 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 [2022-12-14 13:41:57,361 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 [2022-12-14 13:41:57,375 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 [2022-12-14 13:41:57,379 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 [2022-12-14 13:41:57,384 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 [2022-12-14 13:41:57,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,441 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 [2022-12-14 13:41:57,461 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 [2022-12-14 13:41:57,475 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 [2022-12-14 13:41:57,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:41:57,603 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 [2022-12-14 13:41:57,620 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 [2022-12-14 13:41:57,637 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 [2022-12-14 13:41:58,898 INFO L217 Elim1Store]: Index analysis took 977 ms [2022-12-14 13:42:09,735 WARN L233 SmtUtils]: Spent 10.84s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 13:42:09,736 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 13:42:09,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-12-14 13:42:10,418 INFO L217 Elim1Store]: Index analysis took 515 ms [2022-12-14 13:42:11,159 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 13:42:11,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-12-14 13:44:51,774 WARN L233 SmtUtils]: Spent 2.67m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 13:44:51,774 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-12-14 13:44:51,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-12-14 13:44:52,393 INFO L217 Elim1Store]: Index analysis took 334 ms [2022-12-14 13:46:22,731 WARN L233 SmtUtils]: Spent 1.51m 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) [2022-12-14 13:46:22,731 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 13:46:22,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 7135 treesize of output 5975 [2022-12-14 13:46:28,446 INFO L217 Elim1Store]: Index analysis took 4027 ms