./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P --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 9a343b75818c5d561b79c31bb62e9abdd9bdb0bf3f01f7efa313d9ef0f4204f4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:45:05,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:45:05,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:45:05,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:45:05,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:45:05,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:45:05,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:45:05,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:45:05,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:45:05,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:45:05,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:45:05,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:45:05,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:45:05,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:45:05,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:45:05,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:45:05,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:45:05,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:45:05,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:45:05,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:45:05,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:45:05,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:45:05,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:45:05,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:45:05,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:45:05,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:45:05,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:45:05,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:45:05,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:45:05,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:45:05,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:45:05,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:45:05,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:45:05,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:45:05,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:45:05,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:45:05,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:45:05,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:45:05,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:45:05,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:45:05,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:45:05,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:45:06,058 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:45:06,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:45:06,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:45:06,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:45:06,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:45:06,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:45:06,061 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:45:06,062 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:45:06,062 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:45:06,062 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:45:06,064 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:45:06,064 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:45:06,064 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:45:06,065 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:45:06,065 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:45:06,065 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:45:06,066 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:45:06,066 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:45:06,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:45:06,068 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:45:06,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:45:06,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:45:06,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:45:06,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:45:06,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:45:06,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:45:06,071 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:45:06,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:45:06,072 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:45:06,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:45:06,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:45:06,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:45:06,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:45:06,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:45:06,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:45:06,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:45:06,075 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:45:06,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:45:06,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:45:06,076 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:45:06,076 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:45:06,076 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a343b75818c5d561b79c31bb62e9abdd9bdb0bf3f01f7efa313d9ef0f4204f4 [2021-11-21 01:45:06,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:45:06,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:45:06,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:45:06,452 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:45:06,453 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:45:06,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i [2021-11-21 01:45:06,524 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/data/d5e050f2d/668619c4f5ea4885b8d49c427d25c5f5/FLAG4bf508693 [2021-11-21 01:45:07,306 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:45:07,306 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i [2021-11-21 01:45:07,350 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/data/d5e050f2d/668619c4f5ea4885b8d49c427d25c5f5/FLAG4bf508693 [2021-11-21 01:45:07,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/data/d5e050f2d/668619c4f5ea4885b8d49c427d25c5f5 [2021-11-21 01:45:07,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:45:07,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:45:07,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:45:07,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:45:07,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:45:07,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:07" (1/1) ... [2021-11-21 01:45:07,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6a7593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:07, skipping insertion in model container [2021-11-21 01:45:07,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:07" (1/1) ... [2021-11-21 01:45:07,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:45:07,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:45:08,060 WARN L230 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_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i[33022,33035] [2021-11-21 01:45:08,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:45:08,404 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:45:08,440 WARN L230 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_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-2.i[33022,33035] [2021-11-21 01:45:08,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:45:08,641 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:45:08,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08 WrapperNode [2021-11-21 01:45:08,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:45:08,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:45:08,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:45:08,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:45:08,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (1/1) ... [2021-11-21 01:45:08,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (1/1) ... [2021-11-21 01:45:08,888 INFO L137 Inliner]: procedures = 177, calls = 575, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2330 [2021-11-21 01:45:08,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:45:08,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:45:08,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:45:08,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:45:08,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (1/1) ... [2021-11-21 01:45:08,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (1/1) ... [2021-11-21 01:45:08,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (1/1) ... [2021-11-21 01:45:08,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (1/1) ... [2021-11-21 01:45:09,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (1/1) ... [2021-11-21 01:45:09,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (1/1) ... [2021-11-21 01:45:09,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (1/1) ... [2021-11-21 01:45:09,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:45:09,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:45:09,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:45:09,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:45:09,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (1/1) ... [2021-11-21 01:45:09,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:45:09,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:09,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:45:09,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:45:09,173 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-21 01:45:09,173 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-21 01:45:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:45:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:45:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:45:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:45:09,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:45:09,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:45:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:45:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:45:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:45:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:45:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:45:09,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:45:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:45:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:45:09,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:45:09,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:45:09,543 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:45:09,545 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:45:11,821 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:45:12,782 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:45:12,783 INFO L301 CfgBuilder]: Removed 160 assume(true) statements. [2021-11-21 01:45:12,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:12 BoogieIcfgContainer [2021-11-21 01:45:12,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:45:12,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:45:12,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:45:12,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:45:12,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:45:07" (1/3) ... [2021-11-21 01:45:12,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8e5aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:45:12, skipping insertion in model container [2021-11-21 01:45:12,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:08" (2/3) ... [2021-11-21 01:45:12,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8e5aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:45:12, skipping insertion in model container [2021-11-21 01:45:12,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:12" (3/3) ... [2021-11-21 01:45:12,800 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test10-2.i [2021-11-21 01:45:12,808 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:45:12,808 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:45:12,888 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:45:12,908 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:45:12,909 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:45:13,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 01:45:13,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 01:45:13,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:13,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:13,024 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:13,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:13,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1013260908, now seen corresponding path program 1 times [2021-11-21 01:45:13,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:13,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569591698] [2021-11-21 01:45:13,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:13,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:13,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:45:13,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:13,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569591698] [2021-11-21 01:45:13,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569591698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:13,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:13,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:45:13,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902267946] [2021-11-21 01:45:13,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:13,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:45:13,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:13,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:45:13,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:45:13,278 INFO L87 Difference]: Start difference. First operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:14,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:14,776 INFO L93 Difference]: Finished difference Result 529 states and 961 transitions. [2021-11-21 01:45:14,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:45:14,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-21 01:45:14,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:14,797 INFO L225 Difference]: With dead ends: 529 [2021-11-21 01:45:14,797 INFO L226 Difference]: Without dead ends: 249 [2021-11-21 01:45:14,803 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:45:14,807 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:14,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 01:45:14,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-21 01:45:14,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-21 01:45:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 231 states have (on average 1.199134199134199) internal successors, (277), 236 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:45:14,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2021-11-21 01:45:14,878 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 12 [2021-11-21 01:45:14,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:14,879 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2021-11-21 01:45:14,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:14,879 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2021-11-21 01:45:14,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:45:14,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:14,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:14,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:45:14,883 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:14,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:14,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1808167895, now seen corresponding path program 1 times [2021-11-21 01:45:14,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:14,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451630809] [2021-11-21 01:45:14,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:14,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:14,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:45:14,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:14,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451630809] [2021-11-21 01:45:14,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451630809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:14,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:14,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:45:14,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648389043] [2021-11-21 01:45:14,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:14,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:45:14,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:14,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:45:14,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:45:14,974 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:18,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:18,176 INFO L93 Difference]: Finished difference Result 425 states and 521 transitions. [2021-11-21 01:45:18,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:45:18,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-21 01:45:18,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:18,181 INFO L225 Difference]: With dead ends: 425 [2021-11-21 01:45:18,181 INFO L226 Difference]: Without dead ends: 276 [2021-11-21 01:45:18,182 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:45:18,184 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 27 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:18,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 770 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-21 01:45:18,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-21 01:45:18,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2021-11-21 01:45:18,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 238 states have internal predecessors, (279), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:45:18,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2021-11-21 01:45:18,230 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 24 [2021-11-21 01:45:18,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:18,231 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2021-11-21 01:45:18,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:18,233 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2021-11-21 01:45:18,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-21 01:45:18,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:18,240 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:18,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:45:18,241 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:18,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:18,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1787107309, now seen corresponding path program 1 times [2021-11-21 01:45:18,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:18,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111958246] [2021-11-21 01:45:18,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:18,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:18,296 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:18,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874325080] [2021-11-21 01:45:18,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:18,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:18,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:18,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:18,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:45:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:18,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:45:18,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:45:19,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:45:19,123 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:19,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111958246] [2021-11-21 01:45:19,123 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:19,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874325080] [2021-11-21 01:45:19,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874325080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:19,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:19,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:45:19,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374923747] [2021-11-21 01:45:19,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:19,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:45:19,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:19,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:45:19,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:45:19,127 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:22,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:22,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:22,637 INFO L93 Difference]: Finished difference Result 614 states and 746 transitions. [2021-11-21 01:45:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:45:22,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-21 01:45:22,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:22,640 INFO L225 Difference]: With dead ends: 614 [2021-11-21 01:45:22,641 INFO L226 Difference]: Without dead ends: 366 [2021-11-21 01:45:22,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:45:22,643 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 120 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:22,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 532 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 01:45:22,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-21 01:45:22,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2021-11-21 01:45:22,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 344 states have internal predecessors, (400), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-21 01:45:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2021-11-21 01:45:22,684 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 49 [2021-11-21 01:45:22,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:22,684 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2021-11-21 01:45:22,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:45:22,685 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2021-11-21 01:45:22,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 01:45:22,694 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:22,694 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:45:22,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:45:22,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:22,909 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:22,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:22,909 INFO L85 PathProgramCache]: Analyzing trace with hash -338981431, now seen corresponding path program 1 times [2021-11-21 01:45:22,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:22,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87559281] [2021-11-21 01:45:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:22,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:22,938 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:22,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1753612557] [2021-11-21 01:45:22,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:22,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:22,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:22,941 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:22,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:45:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:23,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 01:45:23,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:23,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:45:23,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 55 treesize of output 39 [2021-11-21 01:45:23,773 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:45:23,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:45:23,776 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:23,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87559281] [2021-11-21 01:45:23,776 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:23,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753612557] [2021-11-21 01:45:23,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753612557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:23,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:23,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:45:23,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133457491] [2021-11-21 01:45:23,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:23,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:45:23,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:23,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:45:23,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:45:23,783 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:45:25,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:28,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:28,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:28,938 INFO L93 Difference]: Finished difference Result 674 states and 815 transitions. [2021-11-21 01:45:28,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:45:28,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2021-11-21 01:45:28,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:28,943 INFO L225 Difference]: With dead ends: 674 [2021-11-21 01:45:28,943 INFO L226 Difference]: Without dead ends: 362 [2021-11-21 01:45:28,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:45:28,946 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 12 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:28,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 772 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-21 01:45:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-21 01:45:28,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-11-21 01:45:28,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.176991150442478) internal successors, (399), 344 states have internal predecessors, (399), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-21 01:45:28,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2021-11-21 01:45:28,976 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 62 [2021-11-21 01:45:28,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:28,977 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2021-11-21 01:45:28,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:45:28,977 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2021-11-21 01:45:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-21 01:45:28,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:28,981 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:29,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:45:29,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:29,201 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:29,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:29,202 INFO L85 PathProgramCache]: Analyzing trace with hash -334329145, now seen corresponding path program 1 times [2021-11-21 01:45:29,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:29,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947440996] [2021-11-21 01:45:29,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:29,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:29,239 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:29,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614018904] [2021-11-21 01:45:29,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:29,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:29,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:29,242 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:29,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:45:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:29,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:45:29,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:30,031 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:45:30,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:45:30,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:30,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947440996] [2021-11-21 01:45:30,033 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:30,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614018904] [2021-11-21 01:45:30,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614018904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:30,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:30,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:45:30,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654064440] [2021-11-21 01:45:30,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:30,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:45:30,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:30,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:45:30,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:45:30,037 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:45:32,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:33,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:33,071 INFO L93 Difference]: Finished difference Result 820 states and 988 transitions. [2021-11-21 01:45:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:45:33,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2021-11-21 01:45:33,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:33,077 INFO L225 Difference]: With dead ends: 820 [2021-11-21 01:45:33,077 INFO L226 Difference]: Without dead ends: 484 [2021-11-21 01:45:33,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:45:33,080 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:33,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 530 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-21 01:45:33,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-11-21 01:45:33,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 429. [2021-11-21 01:45:33,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-21 01:45:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 514 transitions. [2021-11-21 01:45:33,113 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 514 transitions. Word has length 83 [2021-11-21 01:45:33,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:33,113 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 514 transitions. [2021-11-21 01:45:33,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:45:33,114 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 514 transitions. [2021-11-21 01:45:33,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-21 01:45:33,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:33,118 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:33,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:45:33,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:33,341 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:33,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1903584894, now seen corresponding path program 1 times [2021-11-21 01:45:33,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:33,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464064322] [2021-11-21 01:45:33,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:33,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:33,407 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:33,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730834114] [2021-11-21 01:45:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:33,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:33,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:33,424 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:33,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:45:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:33,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:45:33,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:34,339 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-21 01:45:34,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:45:34,340 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:34,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464064322] [2021-11-21 01:45:34,340 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:34,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730834114] [2021-11-21 01:45:34,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730834114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:45:34,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:45:34,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:45:34,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332108325] [2021-11-21 01:45:34,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:45:34,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:45:34,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:34,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:45:34,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:45:34,344 INFO L87 Difference]: Start difference. First operand 429 states and 514 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:45:35,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:35,857 INFO L93 Difference]: Finished difference Result 719 states and 867 transitions. [2021-11-21 01:45:35,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:45:35,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2021-11-21 01:45:35,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:35,866 INFO L225 Difference]: With dead ends: 719 [2021-11-21 01:45:35,867 INFO L226 Difference]: Without dead ends: 351 [2021-11-21 01:45:35,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:45:35,875 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 438 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:35,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 334 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 01:45:35,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-21 01:45:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-11-21 01:45:35,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 330 states have (on average 1.1666666666666667) internal successors, (385), 335 states have internal predecessors, (385), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 01:45:35,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2021-11-21 01:45:35,901 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 96 [2021-11-21 01:45:35,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:35,902 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2021-11-21 01:45:35,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:45:35,903 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2021-11-21 01:45:35,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-21 01:45:35,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:35,906 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:35,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:45:36,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:36,122 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:36,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:36,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1222209427, now seen corresponding path program 1 times [2021-11-21 01:45:36,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:36,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099897923] [2021-11-21 01:45:36,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:36,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:36,150 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:36,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229576768] [2021-11-21 01:45:36,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:36,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:36,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:36,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:36,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:52:27,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:52:27,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:52:27,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:52:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 01:52:28,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:52:28,090 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:52:28,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099897923] [2021-11-21 01:52:28,090 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:52:28,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229576768] [2021-11-21 01:52:28,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229576768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:52:28,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:52:28,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:52:28,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664300805] [2021-11-21 01:52:28,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:52:28,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:52:28,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:52:28,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:52:28,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:52:28,093 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:52:32,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:52:32,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:52:32,527 INFO L93 Difference]: Finished difference Result 684 states and 823 transitions. [2021-11-21 01:52:32,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:52:32,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 103 [2021-11-21 01:52:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:52:32,530 INFO L225 Difference]: With dead ends: 684 [2021-11-21 01:52:32,530 INFO L226 Difference]: Without dead ends: 353 [2021-11-21 01:52:32,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:52:32,532 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 1 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:52:32,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 806 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-21 01:52:32,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-21 01:52:32,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2021-11-21 01:52:32,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 337 states have internal predecessors, (387), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (19), 13 states have call predecessors, (19), 16 states have call successors, (19) [2021-11-21 01:52:32,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2021-11-21 01:52:32,554 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 103 [2021-11-21 01:52:32,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:52:32,555 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2021-11-21 01:52:32,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-21 01:52:32,555 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2021-11-21 01:52:32,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-21 01:52:32,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:52:32,557 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:52:32,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-21 01:52:32,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:52:32,777 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:52:32,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:52:32,778 INFO L85 PathProgramCache]: Analyzing trace with hash 221127857, now seen corresponding path program 1 times [2021-11-21 01:52:32,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:52:32,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706568002] [2021-11-21 01:52:32,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:32,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:52:32,802 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:52:32,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914032641] [2021-11-21 01:52:32,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:32,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:52:32,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:52:32,803 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:52:32,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4ce1bcc-7c8b-4fc7-b74b-1a51f499e719/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:55:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:55:43,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:55:43,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:55:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-21 01:55:43,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:55:43,879 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 01:55:43,880 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:55:43,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706568002] [2021-11-21 01:55:43,880 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:55:43,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914032641] [2021-11-21 01:55:43,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914032641] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:55:43,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [131457142] [2021-11-21 01:55:43,907 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2021-11-21 01:55:43,907 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:55:43,913 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:55:43,919 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:55:43,919 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:55:44,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,208 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:55:44,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:55:44,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:44,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:44,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:44,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:44,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,487 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:55:44,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-21 01:55:44,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,566 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:55:44,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:55:44,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:44,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:44,643 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:55:44,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:55:46,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-21 01:55:46,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-21 01:55:46,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2021-11-21 01:55:46,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2021-11-21 01:55:46,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-11-21 01:55:46,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-11-21 01:55:46,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-21 01:55:46,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:55:46,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:55:46,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:46,971 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:55:46,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:55:47,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 01:55:47,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,161 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-21 01:55:47,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 127 treesize of output 163 [2021-11-21 01:55:47,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:47,227 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 01:55:47,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 156 [2021-11-21 01:55:47,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:47,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:47,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:47,887 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:55:47,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 85 treesize of output 88 [2021-11-21 01:55:47,920 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:55:47,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 88 treesize of output 91 [2021-11-21 01:55:47,949 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:55:47,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 91 treesize of output 94 [2021-11-21 01:55:48,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:48,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:48,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:55:48,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 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 [2021-11-21 01:55:48,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:55:48,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:55:48,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:55:48,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:55:48,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:55:48,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 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 [2021-11-21 01:55:55,421 WARN L227 SmtUtils]: Spent 6.51s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:55:55,422 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:55:55,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 01:55:55,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:04,476 WARN L227 SmtUtils]: Spent 9.01s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:56:04,477 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:56:04,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 01:56:16,642 WARN L227 SmtUtils]: Spent 12.02s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:56:16,643 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-21 01:56:16,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2852 treesize of output 2682 [2021-11-21 01:56:17,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:17,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:17,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:18,545 INFO L354 Elim1Store]: treesize reduction 188, result has 20.0 percent of original size [2021-11-21 01:56:18,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25950 treesize of output 25981 [2021-11-21 01:56:18,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:18,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:19,328 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:56:19,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25960 treesize of output 25974 [2021-11-21 01:56:20,985 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:56:21,084 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:56:21,485 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:56:21,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:21,705 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 01:56:21,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 36 treesize of output 20 [2021-11-21 01:56:22,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:22,396 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-21 01:56:22,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 46 treesize of output 44 [2021-11-21 01:56:23,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:23,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:23,278 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:23,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:23,290 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:23,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:23,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:23,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:23,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:23,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 817 treesize of output 369 [2021-11-21 01:56:24,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:24,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:24,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,156 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:24,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:24,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 815 treesize of output 365 [2021-11-21 01:56:24,470 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:56:25,110 INFO L244 Elim1Store]: Index analysis took 259 ms [2021-11-21 01:56:26,744 INFO L354 Elim1Store]: treesize reduction 520, result has 72.0 percent of original size [2021-11-21 01:56:26,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 826 treesize of output 1708 [2021-11-21 01:56:28,519 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:28,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,532 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:28,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:28,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:29,337 INFO L354 Elim1Store]: treesize reduction 360, result has 68.8 percent of original size [2021-11-21 01:56:29,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 805 treesize of output 1161 [2021-11-21 01:56:29,841 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:56:30,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:30,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:30,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:30,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:30,496 INFO L244 Elim1Store]: Index analysis took 125 ms [2021-11-21 01:56:30,675 INFO L354 Elim1Store]: treesize reduction 4, result has 98.2 percent of original size [2021-11-21 01:56:30,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 805 treesize of output 583 [2021-11-21 01:56:30,923 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:56:33,453 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:33,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,488 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:33,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:33,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:33,597 INFO L244 Elim1Store]: Index analysis took 148 ms [2021-11-21 01:56:33,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 817 treesize of output 369 [2021-11-21 01:56:34,232 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:34,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:34,247 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:34,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:34,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:34,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 796 treesize of output 366 [2021-11-21 01:56:34,933 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:34,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:34,945 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:34,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:34,958 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:34,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:34,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:34,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:35,040 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-21 01:56:35,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 817 treesize of output 369 [2021-11-21 01:56:36,311 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:36,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:36,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:36,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:36,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:36,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:36,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:36,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:36,429 INFO L244 Elim1Store]: Index analysis took 120 ms [2021-11-21 01:56:36,542 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:56:36,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 749 treesize of output 559 [2021-11-21 01:56:36,802 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:56:37,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:37,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:37,126 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:56:37,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:37,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:37,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 728 treesize of output 366 [2021-11-21 01:56:37,469 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:56:39,005 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-21 01:56:39,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 1660 treesize of output 1668 [2021-11-21 01:56:39,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:39,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2021-11-21 01:56:40,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:40,452 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:56:40,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 13 [2021-11-21 01:56:40,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:40,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:40,914 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-11-21 01:56:40,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 2 case distinctions, treesize of input 32 treesize of output 16 [2021-11-21 01:56:41,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:56:41,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 47 [2021-11-21 01:56:49,102 INFO L190 IndexEqualityManager]: detected not equals via solver