./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-queue-1.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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-queue-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/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 c858394bc83ab2c402eb20052f936c0a6aa98b2b6b6c704be79c039778bcff97 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:37:40,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:37:40,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:37:40,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:37:40,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:37:40,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:37:40,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:37:40,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:37:40,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:37:40,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:37:40,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:37:40,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:37:40,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:37:40,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:37:40,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:37:40,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:37:40,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:37:40,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:37:40,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:37:40,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:37:40,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:37:40,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:37:40,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:37:40,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:37:40,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:37:40,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:37:40,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:37:40,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:37:40,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:37:40,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:37:40,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:37:40,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:37:40,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:37:40,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:37:40,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:37:40,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:37:40,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:37:40,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:37:40,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:37:40,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:37:40,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:37:40,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:37:40,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:37:40,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:37:40,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:37:40,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:37:40,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:37:40,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:37:40,171 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:37:40,172 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:37:40,172 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:37:40,172 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:37:40,172 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:37:40,173 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:37:40,173 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:37:40,173 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:37:40,173 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:37:40,174 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:37:40,174 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:37:40,174 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:37:40,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:37:40,175 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:37:40,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:37:40,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:37:40,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:37:40,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:37:40,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:37:40,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:37:40,177 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:37:40,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:37:40,177 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:37:40,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:37:40,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:37:40,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:37:40,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:37:40,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:37:40,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:37:40,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:37:40,179 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:37:40,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:37:40,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:37:40,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:37:40,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:37:40,181 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c858394bc83ab2c402eb20052f936c0a6aa98b2b6b6c704be79c039778bcff97 [2021-11-20 23:37:40,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:37:40,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:37:40,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:37:40,467 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:37:40,468 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:37:40,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/forester-heap/dll-queue-1.i [2021-11-20 23:37:40,559 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/data/975058d98/c0e78253632d43dea00f366b2c53d9f0/FLAG633a53d17 [2021-11-20 23:37:41,029 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:37:41,030 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i [2021-11-20 23:37:41,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/data/975058d98/c0e78253632d43dea00f366b2c53d9f0/FLAG633a53d17 [2021-11-20 23:37:41,369 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/data/975058d98/c0e78253632d43dea00f366b2c53d9f0 [2021-11-20 23:37:41,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:37:41,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:37:41,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:37:41,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:37:41,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:37:41,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:41,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f092367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41, skipping insertion in model container [2021-11-20 23:37:41,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:41,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:37:41,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:37:41,804 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22460,22473] [2021-11-20 23:37:41,810 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22531,22544] [2021-11-20 23:37:41,812 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22605,22618] [2021-11-20 23:37:41,813 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22697,22710] [2021-11-20 23:37:41,814 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22774,22787] [2021-11-20 23:37:41,815 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22869,22882] [2021-11-20 23:37:41,817 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22946,22959] [2021-11-20 23:37:41,818 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23029,23042] [2021-11-20 23:37:41,819 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23124,23137] [2021-11-20 23:37:41,820 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23201,23214] [2021-11-20 23:37:41,821 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23284,23297] [2021-11-20 23:37:41,823 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23373,23386] [2021-11-20 23:37:41,824 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23459,23472] [2021-11-20 23:37:41,826 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23604,23617] [2021-11-20 23:37:41,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:37:41,843 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:37:41,903 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22460,22473] [2021-11-20 23:37:41,904 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22531,22544] [2021-11-20 23:37:41,905 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22605,22618] [2021-11-20 23:37:41,906 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22697,22710] [2021-11-20 23:37:41,907 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22774,22787] [2021-11-20 23:37:41,908 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22869,22882] [2021-11-20 23:37:41,909 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[22946,22959] [2021-11-20 23:37:41,910 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23029,23042] [2021-11-20 23:37:41,911 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23124,23137] [2021-11-20 23:37:41,912 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23201,23214] [2021-11-20 23:37:41,913 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23284,23297] [2021-11-20 23:37:41,914 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23373,23386] [2021-11-20 23:37:41,915 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23459,23472] [2021-11-20 23:37:41,917 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_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/sv-benchmarks/c/forester-heap/dll-queue-1.i[23604,23617] [2021-11-20 23:37:41,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:37:41,949 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:37:41,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41 WrapperNode [2021-11-20 23:37:41,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:37:41,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:37:41,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:37:41,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:37:41,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:41,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:42,011 INFO L137 Inliner]: procedures = 119, calls = 38, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 223 [2021-11-20 23:37:42,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:37:42,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:37:42,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:37:42,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:37:42,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:42,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:42,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:42,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:42,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:42,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:42,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:42,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:37:42,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:37:42,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:37:42,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:37:42,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (1/1) ... [2021-11-20 23:37:42,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:37:42,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:37:42,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:37:42,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:37:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:37:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:37:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:37:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:37:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:37:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:37:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:37:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:37:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:37:42,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:37:42,251 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:37:42,253 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:37:42,509 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:37:42,587 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:37:42,587 INFO L301 CfgBuilder]: Removed 31 assume(true) statements. [2021-11-20 23:37:42,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:42 BoogieIcfgContainer [2021-11-20 23:37:42,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:37:42,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:37:42,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:37:42,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:37:42,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:37:41" (1/3) ... [2021-11-20 23:37:42,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650515de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:42, skipping insertion in model container [2021-11-20 23:37:42,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:37:41" (2/3) ... [2021-11-20 23:37:42,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650515de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:37:42, skipping insertion in model container [2021-11-20 23:37:42,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:37:42" (3/3) ... [2021-11-20 23:37:42,619 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-queue-1.i [2021-11-20 23:37:42,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:37:42,625 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-20 23:37:42,690 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:37:42,697 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 [2021-11-20 23:37:42,697 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-20 23:37:42,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 61 states have (on average 2.0491803278688523) internal successors, (125), 75 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:42,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 23:37:42,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:42,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 23:37:42,720 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-20 23:37:42,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:42,726 INFO L85 PathProgramCache]: Analyzing trace with hash 11205579, now seen corresponding path program 1 times [2021-11-20 23:37:42,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:42,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95172460] [2021-11-20 23:37:42,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:42,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:42,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:37:42,883 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:42,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95172460] [2021-11-20 23:37:42,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95172460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:42,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:42,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:37:42,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938316714] [2021-11-20 23:37:42,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:42,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:37:42,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:42,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:37:42,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:37:42,948 INFO L87 Difference]: Start difference. First operand has 76 states, 61 states have (on average 2.0491803278688523) internal successors, (125), 75 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:42,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:42,994 INFO L93 Difference]: Finished difference Result 151 states and 249 transitions. [2021-11-20 23:37:42,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:37:42,997 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-20 23:37:42,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:43,005 INFO L225 Difference]: With dead ends: 151 [2021-11-20 23:37:43,006 INFO L226 Difference]: Without dead ends: 74 [2021-11-20 23:37:43,009 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 [2021-11-20 23:37:43,013 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:43,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:37:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-20 23:37:43,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-20 23:37:43,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 60 states have (on average 1.3) internal successors, (78), 73 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2021-11-20 23:37:43,051 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 4 [2021-11-20 23:37:43,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:43,051 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2021-11-20 23:37:43,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2021-11-20 23:37:43,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-20 23:37:43,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:43,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-20 23:37:43,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:37:43,055 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-20 23:37:43,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:43,059 INFO L85 PathProgramCache]: Analyzing trace with hash 345948564, now seen corresponding path program 1 times [2021-11-20 23:37:43,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:43,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928980859] [2021-11-20 23:37:43,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:43,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:37:43,155 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:43,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928980859] [2021-11-20 23:37:43,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928980859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:43,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:43,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:37:43,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740380849] [2021-11-20 23:37:43,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:43,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:37:43,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:43,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:37:43,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:37:43,159 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:43,230 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2021-11-20 23:37:43,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:37:43,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-20 23:37:43,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:43,234 INFO L225 Difference]: With dead ends: 74 [2021-11-20 23:37:43,234 INFO L226 Difference]: Without dead ends: 64 [2021-11-20 23:37:43,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:37:43,236 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:43,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 51 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:37:43,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-20 23:37:43,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-20 23:37:43,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 63 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2021-11-20 23:37:43,249 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 5 [2021-11-20 23:37:43,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:43,250 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2021-11-20 23:37:43,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,254 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2021-11-20 23:37:43,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 23:37:43,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:43,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:43,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:37:43,255 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-20 23:37:43,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:43,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1744215704, now seen corresponding path program 1 times [2021-11-20 23:37:43,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:43,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403443822] [2021-11-20 23:37:43,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:43,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:43,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:37:43,387 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:43,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403443822] [2021-11-20 23:37:43,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403443822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:43,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:43,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:37:43,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487899260] [2021-11-20 23:37:43,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:43,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:37:43,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:43,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:37:43,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:37:43,390 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:43,574 INFO L93 Difference]: Finished difference Result 158 states and 168 transitions. [2021-11-20 23:37:43,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:43,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-20 23:37:43,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:43,576 INFO L225 Difference]: With dead ends: 158 [2021-11-20 23:37:43,576 INFO L226 Difference]: Without dead ends: 104 [2021-11-20 23:37:43,577 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 [2021-11-20 23:37:43,581 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 138 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:43,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 92 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:37:43,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-20 23:37:43,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 67. [2021-11-20 23:37:43,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 66 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2021-11-20 23:37:43,603 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 7 [2021-11-20 23:37:43,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:43,604 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2021-11-20 23:37:43,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,604 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2021-11-20 23:37:43,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:37:43,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:43,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:43,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:37:43,607 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-20 23:37:43,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:43,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1473412240, now seen corresponding path program 1 times [2021-11-20 23:37:43,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:43,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956593610] [2021-11-20 23:37:43,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:43,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:37:43,641 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:43,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956593610] [2021-11-20 23:37:43,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956593610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:43,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:43,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:37:43,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95863749] [2021-11-20 23:37:43,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:43,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:37:43,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:43,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:37:43,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:37:43,644 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:43,694 INFO L93 Difference]: Finished difference Result 122 states and 130 transitions. [2021-11-20 23:37:43,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:37:43,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 23:37:43,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:43,696 INFO L225 Difference]: With dead ends: 122 [2021-11-20 23:37:43,696 INFO L226 Difference]: Without dead ends: 78 [2021-11-20 23:37:43,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:37:43,698 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 11 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:43,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 115 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:37:43,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-20 23:37:43,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2021-11-20 23:37:43,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 61 states have (on average 1.2131147540983607) internal successors, (74), 68 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2021-11-20 23:37:43,707 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 12 [2021-11-20 23:37:43,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:43,708 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2021-11-20 23:37:43,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,708 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2021-11-20 23:37:43,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 23:37:43,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:43,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:43,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:37:43,710 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-20 23:37:43,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:43,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1577016761, now seen corresponding path program 1 times [2021-11-20 23:37:43,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:43,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368267012] [2021-11-20 23:37:43,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:43,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:37:43,750 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:43,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368267012] [2021-11-20 23:37:43,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368267012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:37:43,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:37:43,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:37:43,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178279871] [2021-11-20 23:37:43,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:37:43,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:37:43,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:37:43,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:37:43,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:37:43,753 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:37:43,832 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2021-11-20 23:37:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:37:43,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-20 23:37:43,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:37:43,834 INFO L225 Difference]: With dead ends: 78 [2021-11-20 23:37:43,834 INFO L226 Difference]: Without dead ends: 64 [2021-11-20 23:37:43,835 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 [2021-11-20 23:37:43,836 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 3 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:37:43,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 171 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 23:37:43,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-20 23:37:43,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-20 23:37:43,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 63 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2021-11-20 23:37:43,843 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 14 [2021-11-20 23:37:43,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:37:43,844 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2021-11-20 23:37:43,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:37:43,844 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2021-11-20 23:37:43,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-20 23:37:43,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:37:43,845 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:37:43,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 23:37:43,846 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-20 23:37:43,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:37:43,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1610313588, now seen corresponding path program 1 times [2021-11-20 23:37:43,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:37:43,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388951744] [2021-11-20 23:37:43,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:43,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:37:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:43,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:37:43,984 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:37:43,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388951744] [2021-11-20 23:37:43,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388951744] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 23:37:43,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277122843] [2021-11-20 23:37:43,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:37:43,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:37:43,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:37:43,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:37:44,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a81a45aa-d02e-47b9-b0d2-fa634881e6bf/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:37:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:37:44,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-20 23:37:44,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:37:44,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-20 23:37:44,484 INFO L354 Elim1Store]: treesize reduction 544, result has 9.3 percent of original size [2021-11-20 23:37:44,484 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 3 case distinctions, treesize of input 323 treesize of output 224 [2021-11-20 23:37:44,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:44,544 INFO L354 Elim1Store]: treesize reduction 129, result has 19.4 percent of original size [2021-11-20 23:37:44,544 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 3 case distinctions, treesize of input 83 treesize of output 72 [2021-11-20 23:37:44,575 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-20 23:37:44,575 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 89 treesize of output 69 [2021-11-20 23:37:44,593 INFO L354 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2021-11-20 23:37:44,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 63 [2021-11-20 23:37:45,394 INFO L354 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2021-11-20 23:37:45,394 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 38 [2021-11-20 23:37:45,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:37:45,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:37:46,108 INFO L354 Elim1Store]: treesize reduction 807, result has 23.8 percent of original size [2021-11-20 23:37:46,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 1439 treesize of output 1125 [2021-11-20 23:37:46,503 INFO L354 Elim1Store]: treesize reduction 421, result has 34.6 percent of original size [2021-11-20 23:37:46,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 14 case distinctions, treesize of input 938 treesize of output 762 [2021-11-20 23:37:47,080 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:47,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2021-11-20 23:37:47,161 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:47,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2021-11-20 23:37:47,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:47,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2021-11-20 23:37:47,326 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:47,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2021-11-20 23:37:47,797 INFO L354 Elim1Store]: treesize reduction 23, result has 25.8 percent of original size [2021-11-20 23:37:47,798 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 30 treesize of output 26 [2021-11-20 23:37:47,897 INFO L354 Elim1Store]: treesize reduction 23, result has 25.8 percent of original size [2021-11-20 23:37:47,897 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 30 treesize of output 26 [2021-11-20 23:37:48,022 INFO L354 Elim1Store]: treesize reduction 23, result has 25.8 percent of original size [2021-11-20 23:37:48,023 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 30 treesize of output 26 [2021-11-20 23:37:48,166 INFO L354 Elim1Store]: treesize reduction 23, result has 25.8 percent of original size [2021-11-20 23:37:48,167 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 30 treesize of output 26 [2021-11-20 23:37:49,048 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:49,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2021-11-20 23:37:49,225 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:49,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2021-11-20 23:37:49,524 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:49,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 30 [2021-11-20 23:37:49,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:49,822 INFO L354 Elim1Store]: treesize reduction 12, result has 47.8 percent of original size [2021-11-20 23:37:49,823 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 35 treesize of output 34 [2021-11-20 23:37:49,926 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:49,947 INFO L354 Elim1Store]: treesize reduction 12, result has 47.8 percent of original size [2021-11-20 23:37:49,948 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 35 treesize of output 34 [2021-11-20 23:37:50,078 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:50,100 INFO L354 Elim1Store]: treesize reduction 12, result has 47.8 percent of original size [2021-11-20 23:37:50,101 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 35 treesize of output 34 [2021-11-20 23:37:50,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:50,171 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 35 treesize of output 23 [2021-11-20 23:37:51,093 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-20 23:37:51,135 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-20 23:37:51,206 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-20 23:37:51,307 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,308 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,315 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-20 23:37:51,316 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 1 case distinctions, treesize of input 33 treesize of output 19 [2021-11-20 23:37:51,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,374 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,375 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,378 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 33 treesize of output 19 [2021-11-20 23:37:51,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,517 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:51,518 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 33 treesize of output 19 [2021-11-20 23:37:52,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:52,076 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-20 23:37:52,076 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 33 treesize of output 19 [2021-11-20 23:37:52,138 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:52,156 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-11-20 23:37:52,156 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 33 treesize of output 26 [2021-11-20 23:37:52,312 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:52,330 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-11-20 23:37:52,331 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 33 treesize of output 26 [2021-11-20 23:37:52,545 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:52,556 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-20 23:37:52,558 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 33 treesize of output 19 [2021-11-20 23:37:52,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:52,645 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-20 23:37:52,645 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 33 treesize of output 19 [2021-11-20 23:37:52,769 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:52,776 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-20 23:37:52,777 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 33 treesize of output 19 [2021-11-20 23:37:52,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:52,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:52,926 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-20 23:37:52,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 30 [2021-11-20 23:37:53,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:53,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:53,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:53,076 INFO L354 Elim1Store]: treesize reduction 35, result has 2.8 percent of original size [2021-11-20 23:37:53,076 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 41 treesize of output 23 [2021-11-20 23:37:53,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:53,122 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:53,142 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-11-20 23:37:53,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 30 [2021-11-20 23:37:53,930 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:53,931 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:53,939 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:53,940 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 1 case distinctions, treesize of input 33 treesize of output 29 [2021-11-20 23:37:54,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:54,035 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:54,043 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:54,044 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 1 case distinctions, treesize of input 33 treesize of output 29 [2021-11-20 23:37:54,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:54,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-20 23:37:54,277 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:54,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-20 23:37:54,690 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:54,714 INFO L354 Elim1Store]: treesize reduction 11, result has 71.1 percent of original size [2021-11-20 23:37:54,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 81 [2021-11-20 23:37:54,818 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:54,858 INFO L354 Elim1Store]: treesize reduction 11, result has 79.6 percent of original size [2021-11-20 23:37:54,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 97 [2021-11-20 23:37:55,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:55,527 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:55,527 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 54 treesize of output 64 [2021-11-20 23:37:55,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:55,652 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 54 treesize of output 40 [2021-11-20 23:37:55,706 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:55,750 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:55,782 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:55,886 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:55,923 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:55,954 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:56,143 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:56,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:56,149 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-20 23:37:56,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 23 [2021-11-20 23:37:56,251 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:56,307 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:56,444 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:56,445 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:56,451 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-20 23:37:56,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 44 [2021-11-20 23:37:56,513 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:56,514 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:56,535 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-20 23:37:56,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 23 [2021-11-20 23:37:56,602 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:56,645 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:56,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:56,729 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:56,747 INFO L354 Elim1Store]: treesize reduction 33, result has 28.3 percent of original size [2021-11-20 23:37:56,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 57 [2021-11-20 23:37:56,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:37:56,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:56,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 44 [2021-11-20 23:37:57,156 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:57,200 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:57,240 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:57,335 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:57,336 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 54 treesize of output 40 [2021-11-20 23:37:57,430 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:57,470 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:57,505 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:58,013 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:58,022 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:37:58,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 73 treesize of output 73 [2021-11-20 23:37:58,870 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:58,871 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-20 23:37:58,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-20 23:37:58,959 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:58,960 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-20 23:37:58,997 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 0 case distinctions, treesize of input 17 treesize of output 9 [2021-11-20 23:37:59,173 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:59,208 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:59,256 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 8 treesize of output 4 [2021-11-20 23:37:59,519 INFO L354 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-11-20 23:37:59,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2021-11-20 23:37:59,596 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:59,628 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:37:59,858 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:37:59,868 INFO L354 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2021-11-20 23:37:59,868 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 25 treesize of output 13 [2021-11-20 23:38:00,069 INFO L354 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2021-11-20 23:38:00,070 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 25 treesize of output 13 [2021-11-20 23:38:00,153 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:00,162 INFO L354 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2021-11-20 23:38:00,163 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 25 treesize of output 13 [2021-11-20 23:38:00,895 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:38:00,915 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:38:01,028 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:38:01,047 WARN L234 Elim1Store]: Array PQE input equivalent to true [2021-11-20 23:38:01,910 INFO L354 Elim1Store]: treesize reduction 22, result has 62.1 percent of original size [2021-11-20 23:38:01,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 66 treesize of output 85 [2021-11-20 23:38:02,751 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:02,793 INFO L354 Elim1Store]: treesize reduction 41, result has 51.8 percent of original size [2021-11-20 23:38:02,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 75 treesize of output 94 [2021-11-20 23:38:03,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:03,113 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:03,119 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:38:03,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 57 [2021-11-20 23:38:03,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:03,406 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:03,413 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:38:03,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 57 [2021-11-20 23:38:03,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:38:03,996 INFO L354 Elim1Store]: treesize reduction 24, result has 44.2 percent of original size [2021-11-20 23:38:03,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 67 treesize of output 65 [2021-11-20 23:38:04,473 INFO L354 Elim1Store]: treesize reduction 94, result has 40.5 percent of original size [2021-11-20 23:38:04,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 584 treesize of output 601 [2021-11-20 23:38:10,978 INFO L354 Elim1Store]: treesize reduction 196, result has 77.6 percent of original size [2021-11-20 23:38:10,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 1 disjoint index pairs (out of 91 index pairs), introduced 15 new quantified variables, introduced 91 case distinctions, treesize of input 729 treesize of output 1122