./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/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_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/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_277d2dd9-bb62-463e-9e44-806b117c982b/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 eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 --- 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 08:49:51,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:49:51,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:49:51,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:49:51,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:49:51,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:49:51,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:49:51,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:49:51,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:49:51,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:49:51,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:49:51,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:49:51,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:49:51,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:49:51,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:49:51,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:49:51,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:49:51,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:49:51,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:49:51,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:49:51,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:49:51,534 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:49:51,535 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:49:51,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:49:51,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:49:51,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:49:51,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:49:51,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:49:51,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:49:51,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:49:51,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:49:51,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:49:51,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:49:51,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:49:51,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:49:51,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:49:51,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:49:51,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:49:51,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:49:51,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:49:51,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:49:51,548 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:49:51,563 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:49:51,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:49:51,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:49:51,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:49:51,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:49:51,564 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:49:51,564 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:49:51,564 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:49:51,564 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:49:51,564 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:49:51,564 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:49:51,565 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:49:51,565 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:49:51,565 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:49:51,565 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:49:51,565 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:49:51,565 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:49:51,565 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:49:51,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:49:51,566 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:49:51,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:49:51,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:49:51,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:49:51,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:49:51,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:49:51,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:49:51,567 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:49:51,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:49:51,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:49:51,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:49:51,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:49:51,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:49:51,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:49:51,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:49:51,568 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:49:51,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:49:51,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:49:51,568 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:49:51,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:49:51,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:49:51,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:49:51,568 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_277d2dd9-bb62-463e-9e44-806b117c982b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb2eb63835edf753d5a467feb7a4cdd6d105155177d7d0cab8bf29c1b74dbaf6 [2022-12-14 08:49:51,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:49:51,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:49:51,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:49:51,754 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:49:51,754 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:49:51,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2022-12-14 08:49:54,379 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:49:54,564 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:49:54,565 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i [2022-12-14 08:49:54,575 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/data/329d3c91c/eb674637a73d4234ae1100e268b7464e/FLAG0b4868c4f [2022-12-14 08:49:54,586 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/data/329d3c91c/eb674637a73d4234ae1100e268b7464e [2022-12-14 08:49:54,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:49:54,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:49:54,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:49:54,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:49:54,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:49:54,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:49:54" (1/1) ... [2022-12-14 08:49:54,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552976d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:54, skipping insertion in model container [2022-12-14 08:49:54,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:49:54" (1/1) ... [2022-12-14 08:49:54,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:49:54,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:49:54,899 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_277d2dd9-bb62-463e-9e44-806b117c982b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[33021,33034] [2022-12-14 08:49:54,954 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:49:54,960 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_277d2dd9-bb62-463e-9e44-806b117c982b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[44590,44603] [2022-12-14 08:49:54,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:49:54,970 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:49:54,989 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_277d2dd9-bb62-463e-9e44-806b117c982b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[33021,33034] [2022-12-14 08:49:55,022 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:49:55,027 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_277d2dd9-bb62-463e-9e44-806b117c982b/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-1.i[44590,44603] [2022-12-14 08:49:55,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:49:55,052 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:49:55,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55 WrapperNode [2022-12-14 08:49:55,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:49:55,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:49:55,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:49:55,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:49:55,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,114 INFO L138 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1022 [2022-12-14 08:49:55,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:49:55,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:49:55,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:49:55,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:49:55,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,187 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:49:55,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:49:55,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:49:55,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:49:55,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (1/1) ... [2022-12-14 08:49:55,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:49:55,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:49:55,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:49:55,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:49:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:49:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 08:49:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 08:49:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:49:55,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 08:49:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 08:49:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:49:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:49:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:49:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:49:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 08:49:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:49:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:49:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:49:55,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:49:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:49:55,402 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:49:55,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:49:56,487 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:49:56,725 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:49:56,725 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-12-14 08:49:56,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:49:56 BoogieIcfgContainer [2022-12-14 08:49:56,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:49:56,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:49:56,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:49:56,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:49:56,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:49:54" (1/3) ... [2022-12-14 08:49:56,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad233d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:49:56, skipping insertion in model container [2022-12-14 08:49:56,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:49:55" (2/3) ... [2022-12-14 08:49:56,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad233d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:49:56, skipping insertion in model container [2022-12-14 08:49:56,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:49:56" (3/3) ... [2022-12-14 08:49:56,736 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-1.i [2022-12-14 08:49:56,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:49:56,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 08:49:56,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:49:56,791 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;@1b9b6af9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:49:56,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 08:49:56,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:49:56,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 08:49:56,799 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:49:56,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:49:56,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:49:56,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:49:56,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1898435451, now seen corresponding path program 1 times [2022-12-14 08:49:56,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:49:56,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724219335] [2022-12-14 08:49:56,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:49:56,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:49:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:49:56,945 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 08:49:56,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:49:56,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724219335] [2022-12-14 08:49:56,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724219335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:49:56,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:49:56,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:49:56,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796709245] [2022-12-14 08:49:56,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:49:56,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:49:56,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:49:56,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:49:56,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:49:56,982 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 08:49:57,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:49:57,363 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2022-12-14 08:49:57,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:49:57,368 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-12-14 08:49:57,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:49:57,376 INFO L225 Difference]: With dead ends: 245 [2022-12-14 08:49:57,376 INFO L226 Difference]: Without dead ends: 122 [2022-12-14 08:49:57,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 08:49:57,381 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:49:57,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 08:49:57,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-12-14 08:49:57,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-12-14 08:49:57,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:49:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2022-12-14 08:49:57,418 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2022-12-14 08:49:57,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:49:57,418 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2022-12-14 08:49:57,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 08:49:57,419 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2022-12-14 08:49:57,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 08:49:57,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:49:57,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:49:57,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:49:57,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:49:57,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:49:57,421 INFO L85 PathProgramCache]: Analyzing trace with hash -94655351, now seen corresponding path program 1 times [2022-12-14 08:49:57,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:49:57,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5841730] [2022-12-14 08:49:57,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:49:57,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:49:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:49:57,590 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 08:49:57,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:49:57,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5841730] [2022-12-14 08:49:57,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5841730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:49:57,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:49:57,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:49:57,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928838830] [2022-12-14 08:49:57,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:49:57,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:49:57,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:49:57,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:49:57,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:49:57,594 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:49:59,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 08:49:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:49:59,485 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2022-12-14 08:49:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:49:59,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 08:49:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:49:59,491 INFO L225 Difference]: With dead ends: 258 [2022-12-14 08:49:59,491 INFO L226 Difference]: Without dead ends: 189 [2022-12-14 08:49:59,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:49:59,492 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:49:59,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 355 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 08:49:59,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-12-14 08:49:59,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2022-12-14 08:49:59,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:49:59,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2022-12-14 08:49:59,502 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2022-12-14 08:49:59,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:49:59,502 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2022-12-14 08:49:59,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:49:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2022-12-14 08:49:59,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 08:49:59,503 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:49:59,503 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 08:49:59,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:49:59,503 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:49:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:49:59,503 INFO L85 PathProgramCache]: Analyzing trace with hash 339208180, now seen corresponding path program 1 times [2022-12-14 08:49:59,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:49:59,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583445415] [2022-12-14 08:49:59,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:49:59,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:49:59,626 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:49:59,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691938171] [2022-12-14 08:49:59,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:49:59,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:49:59,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:49:59,628 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:49:59,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:50:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:50:00,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:50:00,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:50:00,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:50:00,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:50:00,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:50:00,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583445415] [2022-12-14 08:50:00,190 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:50:00,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691938171] [2022-12-14 08:50:00,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691938171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:50:00,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:50:00,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:50:00,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735337055] [2022-12-14 08:50:00,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:50:00,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:50:00,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:50:00,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:50:00,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:50:00,192 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:50:01,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:50:01,090 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2022-12-14 08:50:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:50:01,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-12-14 08:50:01,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:50:01,095 INFO L225 Difference]: With dead ends: 304 [2022-12-14 08:50:01,095 INFO L226 Difference]: Without dead ends: 183 [2022-12-14 08:50:01,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 08:50:01,096 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:50:01,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 278 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 08:50:01,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-12-14 08:50:01,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2022-12-14 08:50:01,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:50:01,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2022-12-14 08:50:01,105 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2022-12-14 08:50:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:50:01,105 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2022-12-14 08:50:01,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:50:01,105 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2022-12-14 08:50:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 08:50:01,106 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:50:01,106 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-12-14 08:50:01,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:50:01,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-14 08:50:01,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:50:01,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:50:01,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1571641394, now seen corresponding path program 1 times [2022-12-14 08:50:01,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:50:01,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543675901] [2022-12-14 08:50:01,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:50:01,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:50:01,387 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:50:01,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248409214] [2022-12-14 08:50:01,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:50:01,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:50:01,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:50:01,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:50:01,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:50:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:50:01,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:50:01,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:50:01,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 08:50:01,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 08:50:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 08:50:01,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:50:01,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:50:01,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543675901] [2022-12-14 08:50:01,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:50:01,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248409214] [2022-12-14 08:50:01,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248409214] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:50:01,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:50:01,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:50:01,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753551949] [2022-12-14 08:50:01,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:50:01,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:50:01,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:50:01,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:50:01,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:50:01,727 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 08:50:02,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:50:02,993 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2022-12-14 08:50:02,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:50:02,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-12-14 08:50:02,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:50:02,997 INFO L225 Difference]: With dead ends: 231 [2022-12-14 08:50:02,997 INFO L226 Difference]: Without dead ends: 212 [2022-12-14 08:50:02,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:50:02,998 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:50:02,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 354 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 08:50:03,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-12-14 08:50:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2022-12-14 08:50:03,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:50:03,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2022-12-14 08:50:03,016 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2022-12-14 08:50:03,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:50:03,016 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2022-12-14 08:50:03,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 08:50:03,016 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2022-12-14 08:50:03,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 08:50:03,017 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:50:03,017 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-12-14 08:50:03,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:50:03,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:50:03,219 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:50:03,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:50:03,221 INFO L85 PathProgramCache]: Analyzing trace with hash 2144578966, now seen corresponding path program 1 times [2022-12-14 08:50:03,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:50:03,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447366015] [2022-12-14 08:50:03,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:50:03,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:50:03,303 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:50:03,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1941368384] [2022-12-14 08:50:03,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:50:03,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:50:03,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:50:03,305 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:50:03,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:50:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:50:03,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 08:50:03,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:50:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 08:50:03,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:50:03,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:50:03,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447366015] [2022-12-14 08:50:03,716 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:50:03,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941368384] [2022-12-14 08:50:03,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941368384] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:50:03,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:50:03,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:50:03,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319219655] [2022-12-14 08:50:03,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:50:03,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:50:03,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:50:03,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:50:03,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:50:03,718 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 08:50:04,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:50:04,377 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2022-12-14 08:50:04,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:50:04,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-12-14 08:50:04,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:50:04,379 INFO L225 Difference]: With dead ends: 395 [2022-12-14 08:50:04,380 INFO L226 Difference]: Without dead ends: 242 [2022-12-14 08:50:04,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:50:04,381 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 260 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:50:04,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 290 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 08:50:04,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-12-14 08:50:04,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2022-12-14 08:50:04,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 08:50:04,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2022-12-14 08:50:04,392 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2022-12-14 08:50:04,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:50:04,393 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2022-12-14 08:50:04,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 08:50:04,393 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2022-12-14 08:50:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 08:50:04,394 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:50:04,394 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-12-14 08:50:04,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 08:50:04,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:50:04,595 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:50:04,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:50:04,596 INFO L85 PathProgramCache]: Analyzing trace with hash 2121750984, now seen corresponding path program 1 times [2022-12-14 08:50:04,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:50:04,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462903691] [2022-12-14 08:50:04,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:50:04,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:50:04,665 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:50:04,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [107484099] [2022-12-14 08:50:04,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:50:04,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:50:04,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:50:04,666 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:50:04,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 08:50:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:50:14,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 08:50:14,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:50:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:50:14,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:50:14,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:50:14,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462903691] [2022-12-14 08:50:14,769 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:50:14,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107484099] [2022-12-14 08:50:14,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107484099] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:50:14,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:50:14,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:50:14,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048523146] [2022-12-14 08:50:14,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:50:14,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:50:14,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:50:14,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:50:14,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:50:14,770 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 08:50:15,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:50:15,544 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2022-12-14 08:50:15,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:50:15,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2022-12-14 08:50:15,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:50:15,549 INFO L225 Difference]: With dead ends: 411 [2022-12-14 08:50:15,549 INFO L226 Difference]: Without dead ends: 216 [2022-12-14 08:50:15,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:50:15,550 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:50:15,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 392 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 08:50:15,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-12-14 08:50:15,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-12-14 08:50:15,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-14 08:50:15,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2022-12-14 08:50:15,558 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2022-12-14 08:50:15,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:50:15,558 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2022-12-14 08:50:15,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 08:50:15,558 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2022-12-14 08:50:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 08:50:15,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:50:15,559 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-12-14 08:50:15,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 08:50:15,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:50:15,762 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:50:15,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:50:15,763 INFO L85 PathProgramCache]: Analyzing trace with hash -869473738, now seen corresponding path program 1 times [2022-12-14 08:50:15,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:50:15,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311394289] [2022-12-14 08:50:15,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:50:15,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:50:15,844 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:50:15,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106088116] [2022-12-14 08:50:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:50:15,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:50:15,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:50:15,852 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:50:15,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_277d2dd9-bb62-463e-9e44-806b117c982b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 08:50:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:50:48,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 08:50:48,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:50:48,395 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 08:50:48,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:50:48,453 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 08:50:48,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:50:48,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311394289] [2022-12-14 08:50:48,454 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:50:48,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106088116] [2022-12-14 08:50:48,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106088116] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:50:48,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1341577807] [2022-12-14 08:50:48,470 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 08:50:48,470 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:50:48,472 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:50:48,476 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:50:48,477 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:50:48,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 08:50:48,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 08:50:48,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,561 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 08:50:48,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 08:50:48,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 08:50:48,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,593 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 08:50:48,594 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 08:50:48,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,648 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 08:50:48,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 52 treesize of output 53 [2022-12-14 08:50:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,686 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 08:50:48,686 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 08:50:48,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,704 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 08:50:48,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,740 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 08:50:48,740 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 08:50:48,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:48,758 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 08:50:49,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-12-14 08:50:49,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897007 treesize of output 5376300 [2022-12-14 08:50:49,202 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 08:50:49,218 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 08:50:49,245 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 08:50:49,254 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 08:50:49,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 08:50:49,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 08:50:49,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 08:50:49,460 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 08:50:49,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,513 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 08:50:49,513 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 08:50:49,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,574 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 08:50:49,574 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 08:50:49,599 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 08:50:49,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 08:50:49,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 08:50:49,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 08:50:49,769 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 08:50:49,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-12-14 08:50:49,795 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 08:50:49,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-12-14 08:50:49,816 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 08:50:49,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-12-14 08:50:49,846 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 08:50:49,850 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 08:50:49,855 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 08:50:49,910 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 08:50:49,930 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 08:50:49,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:49,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 08:50:50,099 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 08:50:50,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:50:50,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 08:50:50,152 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 08:50:50,845 INFO L217 Elim1Store]: Index analysis took 456 ms [2022-12-14 08:50:54,784 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 08:50:54,785 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 9519777 treesize of output 9519796 [2022-12-14 08:50:55,678 INFO L217 Elim1Store]: Index analysis took 749 ms [2022-12-14 08:50:56,126 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 08:50:56,127 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 9519772 treesize of output 9519776 [2022-12-14 08:51:04,138 WARN L233 SmtUtils]: Spent 7.91s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 08:51:04,139 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-12-14 08:51:04,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-12-14 08:51:04,386 INFO L217 Elim1Store]: Index analysis took 119 ms [2022-12-14 08:51:25,311 WARN L233 SmtUtils]: Spent 20.92s 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 08:51:25,312 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 08:51:25,312 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 2005 treesize of output 1834 [2022-12-14 08:51:26,885 INFO L217 Elim1Store]: Index analysis took 1148 ms [2022-12-14 08:51:50,673 WARN L233 SmtUtils]: Spent 22.93s on a formula simplification. DAG size of input: 258 DAG size of output: 156 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 08:51:50,674 INFO L321 Elim1Store]: treesize reduction 13218, result has 27.3 percent of original size [2022-12-14 08:51:50,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 3622 treesize of output 7921 [2022-12-14 08:51:51,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:51:51,807 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-12-14 08:51:51,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:51:51,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:51:51,945 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:51:51,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-12-14 08:51:52,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:51:52,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-12-14 08:51:53,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:51:53,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 08:51:55,909 INFO L321 Elim1Store]: treesize reduction 550, result has 14.1 percent of original size [2022-12-14 08:51:55,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 14 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 16 new quantified variables, introduced 18 case distinctions, treesize of input 51016 treesize of output 53256 [2022-12-14 08:52:02,181 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 08:52:02,723 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 08:52:02,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40846 treesize of output 40854 [2022-12-14 08:52:03,483 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 08:52:09,806 INFO L321 Elim1Store]: treesize reduction 185, result has 49.9 percent of original size [2022-12-14 08:52:09,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66514 treesize of output 65984 [2022-12-14 08:52:10,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43142 treesize of output 43102 [2022-12-14 08:52:12,477 INFO L321 Elim1Store]: treesize reduction 17, result has 48.5 percent of original size [2022-12-14 08:52:12,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40846 treesize of output 40828 [2022-12-14 08:52:13,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-12-14 08:52:15,381 INFO L321 Elim1Store]: treesize reduction 45, result has 49.4 percent of original size [2022-12-14 08:52:15,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56608 treesize of output 56496 [2022-12-14 08:52:44,014 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:44,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:44,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:44,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:45,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,748 INFO L217 Elim1Store]: Index analysis took 5090 ms [2022-12-14 08:52:46,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,754 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:46,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 545 treesize of output 4453 [2022-12-14 08:52:46,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-12-14 08:52:48,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:51,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,619 INFO L217 Elim1Store]: Index analysis took 5074 ms [2022-12-14 08:52:52,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:52,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2247 [2022-12-14 08:52:53,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:53,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:55,953 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,569 INFO L217 Elim1Store]: Index analysis took 3703 ms [2022-12-14 08:52:56,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,576 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,577 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,577 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:56,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2257 [2022-12-14 08:52:56,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:52:56,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:52:56,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-12-14 08:52:57,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:52:57,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:52:58,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:59,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:52:59,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:52:59,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:52:59,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,072 INFO L217 Elim1Store]: Index analysis took 2753 ms [2022-12-14 08:53:00,073 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:00,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2269 [2022-12-14 08:53:00,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:00,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:00,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2022-12-14 08:53:00,630 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 08:53:01,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:01,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:02,298 INFO L217 Elim1Store]: Index analysis took 1606 ms [2022-12-14 08:53:02,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:02,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:02,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:02,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:02,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:02,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:02,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:02,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:02,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:02,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 40009 treesize of output 43909 [2022-12-14 08:53:06,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:10,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,838 INFO L217 Elim1Store]: Index analysis took 5754 ms [2022-12-14 08:53:11,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:11,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2215 [2022-12-14 08:53:12,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:12,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:12,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 194 [2022-12-14 08:53:12,419 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 08:53:16,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:16,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:16,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:16,558 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,589 INFO L217 Elim1Store]: Index analysis took 4996 ms [2022-12-14 08:53:17,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:17,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 507 treesize of output 3942 [2022-12-14 08:53:17,877 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 08:53:18,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:21,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,744 INFO L217 Elim1Store]: Index analysis took 4638 ms [2022-12-14 08:53:22,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,747 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:22,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2247 [2022-12-14 08:53:23,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:23,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:23,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 54 [2022-12-14 08:53:24,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,258 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,469 INFO L217 Elim1Store]: Index analysis took 1168 ms [2022-12-14 08:53:24,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,475 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:24,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 34295 treesize of output 38205 [2022-12-14 08:53:36,233 INFO L217 Elim1Store]: Index analysis took 6957 ms [2022-12-14 08:53:37,300 INFO L321 Elim1Store]: treesize reduction 538, result has 3.8 percent of original size [2022-12-14 08:53:37,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 14 case distinctions, treesize of input 403 treesize of output 2354 [2022-12-14 08:53:37,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:37,648 INFO L217 Elim1Store]: Index analysis took 205 ms [2022-12-14 08:53:37,995 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 08:53:37,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 79 [2022-12-14 08:53:38,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:38,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:38,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-12-14 08:53:42,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:43,906 INFO L217 Elim1Store]: Index analysis took 5365 ms [2022-12-14 08:53:44,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 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 316 treesize of output 2350 [2022-12-14 08:53:44,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:45,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:46,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:51,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,344 INFO L217 Elim1Store]: Index analysis took 7388 ms [2022-12-14 08:53:52,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:52,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1409 treesize of output 3388 [2022-12-14 08:53:52,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:52,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:53:52,748 INFO L217 Elim1Store]: Index analysis took 204 ms [2022-12-14 08:53:53,139 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 08:53:53,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 1093 treesize of output 919 [2022-12-14 08:53:53,505 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 08:53:54,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:55,750 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:53:58,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:03,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,439 INFO L217 Elim1Store]: Index analysis took 11344 ms [2022-12-14 08:54:05,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:05,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 573 treesize of output 2471 [2022-12-14 08:54:06,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:54:06,155 INFO L217 Elim1Store]: Index analysis took 287 ms [2022-12-14 08:54:06,772 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 08:54:06,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 257 treesize of output 221 [2022-12-14 08:54:07,095 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 08:54:08,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:54:08,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:54:08,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:09,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:09,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:54:09,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:54:10,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,305 INFO L217 Elim1Store]: Index analysis took 3013 ms [2022-12-14 08:54:10,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:54:10,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 2287 [2022-12-14 08:54:10,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 08:54:10,983 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 08:55:25,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:55:26,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 08:55:27,153 INFO L217 Elim1Store]: Index analysis took 1967 ms [2022-12-14 08:55:27,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 15 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1905 treesize of output 16050 [2022-12-14 08:55:28,593 INFO L217 Elim1Store]: Index analysis took 402 ms [2022-12-14 08:56:56,317 WARN L233 SmtUtils]: Spent 1.46m on a formula simplification. DAG size of input: 222 DAG size of output: 42 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 08:56:56,319 INFO L321 Elim1Store]: treesize reduction 1365, result has 5.7 percent of original size [2022-12-14 08:56:56,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 38 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 33 new quantified variables, introduced 68 case distinctions, treesize of input 5645 treesize of output 94048