./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0 --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 a81d76a671fec08918102c7898e8919d02b265d05707efa1508363dab4714d44 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 19:42:48,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 19:42:48,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 19:42:48,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 19:42:48,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 19:42:48,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 19:42:48,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 19:42:48,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 19:42:48,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 19:42:48,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 19:42:48,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 19:42:48,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 19:42:48,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 19:42:48,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 19:42:48,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 19:42:48,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 19:42:48,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 19:42:48,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 19:42:48,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 19:42:48,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 19:42:48,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 19:42:48,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 19:42:48,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 19:42:48,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 19:42:48,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 19:42:48,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 19:42:48,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 19:42:48,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 19:42:48,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 19:42:48,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 19:42:48,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 19:42:48,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 19:42:48,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 19:42:48,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 19:42:48,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 19:42:48,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 19:42:48,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 19:42:48,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 19:42:48,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 19:42:48,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 19:42:48,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 19:42:48,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 19:42:48,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 19:42:48,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 19:42:48,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 19:42:48,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 19:42:48,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 19:42:48,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 19:42:48,393 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 19:42:48,393 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 19:42:48,393 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 19:42:48,393 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 19:42:48,394 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 19:42:48,394 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 19:42:48,394 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 19:42:48,395 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 19:42:48,395 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 19:42:48,395 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 19:42:48,395 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 19:42:48,396 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 19:42:48,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 19:42:48,396 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 19:42:48,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 19:42:48,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 19:42:48,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 19:42:48,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 19:42:48,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 19:42:48,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 19:42:48,398 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 19:42:48,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 19:42:48,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 19:42:48,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 19:42:48,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 19:42:48,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 19:42:48,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:42:48,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 19:42:48,400 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 19:42:48,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 19:42:48,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 19:42:48,400 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 19:42:48,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 19:42:48,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 19:42:48,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 19:42:48,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a81d76a671fec08918102c7898e8919d02b265d05707efa1508363dab4714d44 [2022-11-16 19:42:48,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 19:42:48,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 19:42:48,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 19:42:48,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 19:42:48,782 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 19:42:48,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2022-11-16 19:42:48,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/data/627b49ccd/458ffe216aa94153a42428b1c27ee51a/FLAGd6f67f7dd [2022-11-16 19:42:49,324 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 19:42:49,324 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i [2022-11-16 19:42:49,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/data/627b49ccd/458ffe216aa94153a42428b1c27ee51a/FLAGd6f67f7dd [2022-11-16 19:42:49,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/data/627b49ccd/458ffe216aa94153a42428b1c27ee51a [2022-11-16 19:42:49,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 19:42:49,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 19:42:49,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 19:42:49,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 19:42:49,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 19:42:49,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:42:49" (1/1) ... [2022-11-16 19:42:49,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55825180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:49, skipping insertion in model container [2022-11-16 19:42:49,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:42:49" (1/1) ... [2022-11-16 19:42:49,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 19:42:49,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 19:42:50,124 WARN L229 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_0fdc2cef-2a51-4ed5-820e-32cf07307741/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i[24177,24190] [2022-11-16 19:42:50,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:42:50,143 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 19:42:50,213 WARN L229 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_0fdc2cef-2a51-4ed5-820e-32cf07307741/sv-benchmarks/c/list-simple/dll2c_remove_all_reverse.i[24177,24190] [2022-11-16 19:42:50,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 19:42:50,245 INFO L208 MainTranslator]: Completed translation [2022-11-16 19:42:50,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50 WrapperNode [2022-11-16 19:42:50,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 19:42:50,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 19:42:50,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 19:42:50,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 19:42:50,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,307 INFO L138 Inliner]: procedures = 126, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 105 [2022-11-16 19:42:50,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 19:42:50,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 19:42:50,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 19:42:50,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 19:42:50,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,338 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 19:42:50,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 19:42:50,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 19:42:50,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 19:42:50,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (1/1) ... [2022-11-16 19:42:50,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 19:42:50,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:42:50,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 19:42:50,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 19:42:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 19:42:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-16 19:42:50,415 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-16 19:42:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 19:42:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 19:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 19:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 19:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 19:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 19:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 19:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 19:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 19:42:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 19:42:50,574 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 19:42:50,576 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 19:42:50,849 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 19:42:51,040 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 19:42:51,041 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 19:42:51,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:42:51 BoogieIcfgContainer [2022-11-16 19:42:51,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 19:42:51,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 19:42:51,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 19:42:51,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 19:42:51,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:42:49" (1/3) ... [2022-11-16 19:42:51,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65db130b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:42:51, skipping insertion in model container [2022-11-16 19:42:51,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:42:50" (2/3) ... [2022-11-16 19:42:51,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65db130b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:42:51, skipping insertion in model container [2022-11-16 19:42:51,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 07:42:51" (3/3) ... [2022-11-16 19:42:51,057 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_remove_all_reverse.i [2022-11-16 19:42:51,079 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 19:42:51,079 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 19:42:51,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 19:42:51,169 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@125d95fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 19:42:51,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 19:42:51,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:42:51,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 19:42:51,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:42:51,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:42:51,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:42:51,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:42:51,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1325907828, now seen corresponding path program 1 times [2022-11-16 19:42:51,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:42:51,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700563074] [2022-11-16 19:42:51,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:42:51,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:42:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:42:51,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 19:42:51,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:42:51,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700563074] [2022-11-16 19:42:51,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700563074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:42:51,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:42:51,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 19:42:51,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693096180] [2022-11-16 19:42:51,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:42:51,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 19:42:51,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:42:51,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 19:42:51,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:42:51,719 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 19:42:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:42:51,805 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2022-11-16 19:42:51,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 19:42:51,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-16 19:42:51,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:42:51,816 INFO L225 Difference]: With dead ends: 25 [2022-11-16 19:42:51,816 INFO L226 Difference]: Without dead ends: 16 [2022-11-16 19:42:51,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 19:42:51,823 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:42:51,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:42:51,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-16 19:42:51,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2022-11-16 19:42:51,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:42:51,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-16 19:42:51,858 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2022-11-16 19:42:51,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:42:51,859 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-16 19:42:51,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 19:42:51,860 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-16 19:42:51,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 19:42:51,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:42:51,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:42:51,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 19:42:51,863 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:42:51,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:42:51,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1696736134, now seen corresponding path program 1 times [2022-11-16 19:42:51,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:42:51,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444109859] [2022-11-16 19:42:51,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:42:51,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:42:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:42:52,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 19:42:52,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:42:52,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444109859] [2022-11-16 19:42:52,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444109859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 19:42:52,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 19:42:52,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 19:42:52,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079215638] [2022-11-16 19:42:52,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 19:42:52,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 19:42:52,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 19:42:52,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 19:42:52,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:42:52,066 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:42:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 19:42:52,127 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-16 19:42:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 19:42:52,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-11-16 19:42:52,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 19:42:52,146 INFO L225 Difference]: With dead ends: 18 [2022-11-16 19:42:52,146 INFO L226 Difference]: Without dead ends: 15 [2022-11-16 19:42:52,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 19:42:52,148 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 19:42:52,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 16 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 19:42:52,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-16 19:42:52,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-16 19:42:52,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 19:42:52,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-16 19:42:52,160 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 16 [2022-11-16 19:42:52,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 19:42:52,161 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-16 19:42:52,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 19:42:52,161 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-16 19:42:52,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 19:42:52,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 19:42:52,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 19:42:52,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 19:42:52,162 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 19:42:52,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 19:42:52,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1059394163, now seen corresponding path program 1 times [2022-11-16 19:42:52,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 19:42:52,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824023220] [2022-11-16 19:42:52,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:42:52,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 19:42:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:42:52,415 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 19:42:52,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 19:42:52,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824023220] [2022-11-16 19:42:52,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824023220] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 19:42:52,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596609010] [2022-11-16 19:42:52,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 19:42:52,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 19:42:52,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 19:42:52,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 19:42:52,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdc2cef-2a51-4ed5-820e-32cf07307741/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 19:42:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 19:42:52,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 19:42:52,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 19:42:52,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 19:42:52,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 19:42:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 19:42:52,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596609010] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 19:42:52,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [780024748] [2022-11-16 19:42:52,782 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-11-16 19:42:52,783 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 19:42:52,786 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 19:42:52,792 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 19:42:52,794 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 19:42:52,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:52,908 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-16 19:42:52,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-16 19:42:52,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:52,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 19:42:53,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-16 19:42:53,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-16 19:42:53,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:53,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:53,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-16 19:42:53,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:53,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:53,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-16 19:42:53,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:53,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:53,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-16 19:42:53,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:53,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-16 19:42:53,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:53,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-16 19:42:53,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:53,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-16 19:42:53,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:53,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-16 19:42:53,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:42:53,828 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-16 19:42:53,842 INFO L350 Elim1Store]: Elim1 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 15 treesize of output 7 [2022-11-16 19:42:53,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:42:53,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 19:42:53,881 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:42:53,883 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:42:53,885 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:42:54,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:42:54,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,170 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-16 19:42:54,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:42:54,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,195 INFO L350 Elim1Store]: Elim1 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 7 [2022-11-16 19:42:54,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-11-16 19:42:54,233 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:42:54,235 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:42:54,238 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:42:54,240 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:42:54,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:54,339 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 19:42:54,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 30 [2022-11-16 19:42:54,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:54,377 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:42:54,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 34 [2022-11-16 19:42:54,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 18 [2022-11-16 19:42:54,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:54,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:54,588 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-16 19:42:54,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 143 [2022-11-16 19:42:54,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:54,662 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 19:42:54,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 133 [2022-11-16 19:42:54,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-11-16 19:42:54,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 11 [2022-11-16 19:42:54,803 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-16 19:42:54,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 70 [2022-11-16 19:42:54,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 56 [2022-11-16 19:42:54,897 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 19:42:54,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 87 [2022-11-16 19:42:54,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2022-11-16 19:42:54,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:54,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-16 19:42:55,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:55,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 7 [2022-11-16 19:42:55,015 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:55,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:55,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-11-16 19:42:55,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:55,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:55,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:55,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:55,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:56,292 INFO L321 Elim1Store]: treesize reduction 328, result has 17.6 percent of original size [2022-11-16 19:42:56,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 387 treesize of output 363 [2022-11-16 19:42:56,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:56,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:58,074 INFO L321 Elim1Store]: treesize reduction 671, result has 14.8 percent of original size [2022-11-16 19:42:58,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 335 treesize of output 399 [2022-11-16 19:42:58,133 INFO L350 Elim1Store]: Elim1 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 0 case distinctions, treesize of input 188 treesize of output 200 [2022-11-16 19:42:58,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 152 treesize of output 170 [2022-11-16 19:42:58,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:58,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 3 [2022-11-16 19:42:58,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-16 19:42:58,801 INFO L321 Elim1Store]: treesize reduction 150, result has 29.6 percent of original size [2022-11-16 19:42:58,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 132 treesize of output 261 [2022-11-16 19:42:58,871 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 11 [2022-11-16 19:42:58,917 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:58,918 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 1 [2022-11-16 19:42:59,033 INFO L321 Elim1Store]: treesize reduction 15, result has 37.5 percent of original size [2022-11-16 19:42:59,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 48 [2022-11-16 19:42:59,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:42:59,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2022-11-16 19:42:59,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:59,189 INFO L350 Elim1Store]: Elim1 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 12 treesize of output 1 [2022-11-16 19:42:59,218 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 19 [2022-11-16 19:42:59,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:59,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:59,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:59,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:42:59,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 133 [2022-11-16 19:42:59,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 19:42:59,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:00,249 INFO L321 Elim1Store]: treesize reduction 128, result has 28.5 percent of original size [2022-11-16 19:43:00,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 634 treesize of output 996 [2022-11-16 19:43:00,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:00,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:02,017 INFO L321 Elim1Store]: treesize reduction 179, result has 38.1 percent of original size [2022-11-16 19:43:02,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 2650 treesize of output 3716 [2022-11-16 19:43:02,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:02,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:02,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:02,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:02,864 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:02,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:02,872 INFO L217 Elim1Store]: Index analysis took 166 ms [2022-11-16 19:43:02,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 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 1110 treesize of output 2910 [2022-11-16 19:43:11,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:11,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:11,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:11,632 INFO L321 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2022-11-16 19:43:11,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 10 case distinctions, treesize of input 53 treesize of output 51 [2022-11-16 19:43:11,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:43:11,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:43:11,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:11,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 19:43:11,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:11,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:11,758 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:43:11,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 77 [2022-11-16 19:43:15,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:15,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:15,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:15,799 INFO L321 Elim1Store]: treesize reduction 126, result has 34.0 percent of original size [2022-11-16 19:43:15,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 18 case distinctions, treesize of input 129 treesize of output 176 [2022-11-16 19:43:15,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2022-11-16 19:43:15,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:15,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2022-11-16 19:43:15,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:43:15,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:15,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:15,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:15,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2022-11-16 19:43:16,027 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:43:16,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2022-11-16 19:43:16,105 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:43:16,165 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:43:16,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:16,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:16,330 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-16 19:43:16,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 150 treesize of output 108 [2022-11-16 19:43:16,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:16,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,396 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:16,407 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-16 19:43:16,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 150 treesize of output 108 [2022-11-16 19:43:16,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,509 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-16 19:43:16,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 42 [2022-11-16 19:43:16,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:16,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:16,565 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-16 19:43:16,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 110 treesize of output 76 [2022-11-16 19:43:16,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:16,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:16,645 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-16 19:43:16,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 50 [2022-11-16 19:43:16,683 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:43:16,833 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:43:16,881 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:43:19,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,746 INFO L321 Elim1Store]: treesize reduction 78, result has 32.2 percent of original size [2022-11-16 19:43:19,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 18 case distinctions, treesize of input 129 treesize of output 148 [2022-11-16 19:43:19,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-16 19:43:19,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-16 19:43:19,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,848 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,874 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 19:43:19,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 80 treesize of output 80 [2022-11-16 19:43:19,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,916 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 42 [2022-11-16 19:43:19,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 52 [2022-11-16 19:43:19,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:19,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:19,991 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-16 19:43:19,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 52 [2022-11-16 19:43:20,017 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-16 19:43:20,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:20,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:20,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:20,075 INFO L321 Elim1Store]: treesize reduction 9, result has 60.9 percent of original size [2022-11-16 19:43:20,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 64 [2022-11-16 19:43:20,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:20,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:20,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 19:43:20,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 19:43:20,122 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-16 19:43:20,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 79 treesize of output 57 [2022-11-16 19:43:53,566 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 61920 conjuctions. This might take some time... [2022-11-16 19:51:45,910 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 61920 conjuctions. [2022-11-16 19:51:46,870 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 42532 conjuctions. This might take some time...