./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array16_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array16_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur --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 db57f1195f9e10b53cb5b54e10ee768ec758884b71e7f0bbf52d0c8cfb29e46d --- 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-38b53e6 [2022-11-26 00:28:16,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:28:16,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:28:16,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:28:16,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:28:16,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:28:16,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:28:16,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:28:16,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:28:16,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:28:16,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:28:16,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:28:16,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:28:16,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:28:16,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:28:16,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:28:16,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:28:16,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:28:16,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:28:16,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:28:16,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:28:16,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:28:16,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:28:16,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:28:16,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:28:16,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:28:16,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:28:16,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:28:16,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:28:16,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:28:16,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:28:16,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:28:16,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:28:16,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:28:16,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:28:16,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:28:16,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:28:16,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:28:16,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:28:16,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:28:16,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:28:16,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:28:16,360 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:28:16,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:28:16,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:28:16,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:28:16,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:28:16,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:28:16,362 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:28:16,363 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:28:16,363 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:28:16,363 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:28:16,364 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:28:16,364 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:28:16,365 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:28:16,365 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:28:16,365 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:28:16,365 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:28:16,366 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:28:16,366 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:28:16,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:28:16,367 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:28:16,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:28:16,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:28:16,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:28:16,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:28:16,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:28:16,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:28:16,369 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:28:16,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:28:16,369 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:28:16,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:28:16,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:28:16,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:28:16,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:16,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:28:16,371 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:28:16,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:28:16,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:28:16,372 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:28:16,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:28:16,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:28:16,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:28:16,374 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_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db57f1195f9e10b53cb5b54e10ee768ec758884b71e7f0bbf52d0c8cfb29e46d [2022-11-26 00:28:16,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:28:16,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:28:16,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:28:16,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:28:16,673 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:28:16,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-patterns/array16_pattern.c [2022-11-26 00:28:19,681 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:28:19,887 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:28:19,888 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/sv-benchmarks/c/array-patterns/array16_pattern.c [2022-11-26 00:28:19,895 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/data/8331973be/e5df5725bf7d46a684ad3db06e819e99/FLAGf42e316ed [2022-11-26 00:28:19,910 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/data/8331973be/e5df5725bf7d46a684ad3db06e819e99 [2022-11-26 00:28:19,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:28:19,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:28:19,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:19,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:28:19,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:28:19,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:19" (1/1) ... [2022-11-26 00:28:19,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d45643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:19, skipping insertion in model container [2022-11-26 00:28:19,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:19" (1/1) ... [2022-11-26 00:28:19,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:28:19,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:28:20,099 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/sv-benchmarks/c/array-patterns/array16_pattern.c[1311,1324] [2022-11-26 00:28:20,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:20,154 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:28:20,172 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/sv-benchmarks/c/array-patterns/array16_pattern.c[1311,1324] [2022-11-26 00:28:20,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:20,218 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:28:20,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20 WrapperNode [2022-11-26 00:28:20,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:20,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:20,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:28:20,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:28:20,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,285 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2022-11-26 00:28:20,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:20,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:28:20,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:28:20,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:28:20,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,332 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:28:20,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:28:20,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:28:20,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:28:20,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (1/1) ... [2022-11-26 00:28:20,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:20,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:20,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:28:20,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:28:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:28:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:28:20,449 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:28:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:28:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:28:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:28:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:28:20,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:28:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:28:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:28:20,525 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:28:20,528 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:28:20,710 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:28:20,794 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:28:20,806 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-26 00:28:20,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:20 BoogieIcfgContainer [2022-11-26 00:28:20,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:28:20,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:28:20,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:28:20,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:28:20,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:28:19" (1/3) ... [2022-11-26 00:28:20,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b165c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:20, skipping insertion in model container [2022-11-26 00:28:20,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:20" (2/3) ... [2022-11-26 00:28:20,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b165c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:20, skipping insertion in model container [2022-11-26 00:28:20,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:20" (3/3) ... [2022-11-26 00:28:20,826 INFO L112 eAbstractionObserver]: Analyzing ICFG array16_pattern.c [2022-11-26 00:28:20,849 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:28:20,850 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:28:20,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:28:20,918 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;@8bd9c24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:28:20,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:28:20,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:28:20,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:28:20,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:20,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:20,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:28:20,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:20,936 INFO L85 PathProgramCache]: Analyzing trace with hash 315434556, now seen corresponding path program 1 times [2022-11-26 00:28:20,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:20,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891648670] [2022-11-26 00:28:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:20,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:21,055 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:28:21,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450522616] [2022-11-26 00:28:21,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:21,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:28:21,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:21,060 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:28:21,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:28:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:21,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:28:21,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:28:21,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:28:21,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:28:21,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:21,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891648670] [2022-11-26 00:28:21,188 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:28:21,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450522616] [2022-11-26 00:28:21,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450522616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:21,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:21,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:28:21,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691109686] [2022-11-26 00:28:21,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:21,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:28:21,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:21,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:28:21,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:28:21,227 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-26 00:28:21,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:21,303 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2022-11-26 00:28:21,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:28:21,306 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 11 [2022-11-26 00:28:21,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:21,313 INFO L225 Difference]: With dead ends: 28 [2022-11-26 00:28:21,314 INFO L226 Difference]: Without dead ends: 18 [2022-11-26 00:28:21,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:28:21,324 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:21,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:21,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-26 00:28:21,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-26 00:28:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:28:21,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2022-11-26 00:28:21,357 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 24 transitions. Word has length 11 [2022-11-26 00:28:21,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:21,358 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 24 transitions. [2022-11-26 00:28:21,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-26 00:28:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-11-26 00:28:21,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-26 00:28:21,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:21,360 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:21,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:28:21,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:28:21,562 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:28:21,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:21,563 INFO L85 PathProgramCache]: Analyzing trace with hash 644195277, now seen corresponding path program 1 times [2022-11-26 00:28:21,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:21,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090454822] [2022-11-26 00:28:21,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:21,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:21,582 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:28:21,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [417050871] [2022-11-26 00:28:21,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:21,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:28:21,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:21,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:28:21,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:28:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:21,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:28:21,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:28:21,799 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:28:21,799 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:28:21,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:21,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090454822] [2022-11-26 00:28:21,800 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:28:21,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417050871] [2022-11-26 00:28:21,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417050871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:21,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:21,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:28:21,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901840043] [2022-11-26 00:28:21,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:21,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:28:21,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:21,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:28:21,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:28:21,804 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:28:21,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:21,926 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2022-11-26 00:28:21,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:28:21,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-11-26 00:28:21,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:21,941 INFO L225 Difference]: With dead ends: 37 [2022-11-26 00:28:21,941 INFO L226 Difference]: Without dead ends: 24 [2022-11-26 00:28:21,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:28:21,943 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:21,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 21 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:28:21,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-26 00:28:21,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-11-26 00:28:21,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:28:21,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-26 00:28:21,952 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 19 [2022-11-26 00:28:21,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:21,952 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-26 00:28:21,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:28:21,952 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-26 00:28:21,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-26 00:28:21,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:21,968 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:21,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:28:22,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:28:22,174 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:28:22,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:22,175 INFO L85 PathProgramCache]: Analyzing trace with hash 325873406, now seen corresponding path program 1 times [2022-11-26 00:28:22,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:22,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471302602] [2022-11-26 00:28:22,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:22,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:22,194 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:28:22,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366350558] [2022-11-26 00:28:22,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:22,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:28:22,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:22,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:28:22,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:28:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:22,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:28:22,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:28:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:28:22,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:28:22,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:22,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471302602] [2022-11-26 00:28:22,349 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:28:22,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366350558] [2022-11-26 00:28:22,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366350558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:22,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:22,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:28:22,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636309393] [2022-11-26 00:28:22,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:22,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:28:22,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:22,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:28:22,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:28:22,352 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:28:22,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:22,403 INFO L93 Difference]: Finished difference Result 40 states and 52 transitions. [2022-11-26 00:28:22,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:28:22,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-11-26 00:28:22,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:22,404 INFO L225 Difference]: With dead ends: 40 [2022-11-26 00:28:22,404 INFO L226 Difference]: Without dead ends: 24 [2022-11-26 00:28:22,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:28:22,406 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:22,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:28:22,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-26 00:28:22,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-26 00:28:22,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:28:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-26 00:28:22,417 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 23 [2022-11-26 00:28:22,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:22,417 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-26 00:28:22,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-26 00:28:22,418 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-11-26 00:28:22,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-26 00:28:22,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:22,419 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:22,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:28:22,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:28:22,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:28:22,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash 377394655, now seen corresponding path program 1 times [2022-11-26 00:28:22,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:22,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617646074] [2022-11-26 00:28:22,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:22,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:22,655 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:28:22,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917674228] [2022-11-26 00:28:22,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:22,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:28:22,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:22,665 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:28:22,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d561ffce-b441-4374-9e8a-a2c73fd8685a/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:28:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:22,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-26 00:28:22,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:28:23,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:28:23,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 307 treesize of output 288 [2022-11-26 00:28:23,968 INFO L321 Elim1Store]: treesize reduction 694, result has 5.8 percent of original size [2022-11-26 00:28:23,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 291 treesize of output 777 [2022-11-26 00:29:08,942 WARN L233 SmtUtils]: Spent 21.76s on a formula simplification. DAG size of input: 307 DAG size of output: 95 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:29:08,944 INFO L321 Elim1Store]: treesize reduction 3696, result has 11.5 percent of original size [2022-11-26 00:29:08,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 10 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 13 new quantified variables, introduced 48 case distinctions, treesize of input 2206 treesize of output 10244 [2022-11-26 00:34:01,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:34:01,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:34:01,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:34:01,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:34:01,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:34:01,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:34:01,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:34:01,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:34:01,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:34:01,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:34:01,711 INFO L217 Elim1Store]: Index analysis took 107 ms [2022-11-26 00:34:48,416 WARN L233 SmtUtils]: Spent 46.56s on a formula simplification. DAG size of input: 162 DAG size of output: 57 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:34:48,417 INFO L321 Elim1Store]: treesize reduction 1417, result has 10.4 percent of original size [2022-11-26 00:34:48,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 9 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 13 new quantified variables, introduced 28 case distinctions, treesize of input 18374 treesize of output 39330 [2022-11-26 00:38:29,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:29,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:29,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:29,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:29,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:29,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:29,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:29,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:29,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:29,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:29,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:29,820 INFO L217 Elim1Store]: Index analysis took 455 ms [2022-11-26 00:38:29,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9857 treesize of output 9352 [2022-11-26 00:38:30,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:30,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:31,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:31,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:31,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:31,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:31,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:31,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:31,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:31,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:31,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:31,630 INFO L217 Elim1Store]: Index analysis took 507 ms [2022-11-26 00:38:31,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21625 treesize of output 21015 [2022-11-26 00:38:33,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:33,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:33,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:33,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:33,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:33,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:33,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:33,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:34,357 INFO L217 Elim1Store]: Index analysis took 530 ms [2022-11-26 00:38:34,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9204 treesize of output 15464 [2022-11-26 00:38:43,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:43,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:43,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:43,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:43,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:43,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:43,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:43,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:43,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:43,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:43,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:43,533 INFO L217 Elim1Store]: Index analysis took 434 ms [2022-11-26 00:38:43,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6031 treesize of output 5571 [2022-11-26 00:38:43,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:43,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:43,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:44,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:44,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:44,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:44,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:44,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:44,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:44,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:44,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:44,510 INFO L217 Elim1Store]: Index analysis took 483 ms [2022-11-26 00:38:44,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6031 treesize of output 5571 [2022-11-26 00:38:45,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:45,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:45,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:45,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:45,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:45,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:45,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:45,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:47,889 INFO L217 Elim1Store]: Index analysis took 2357 ms [2022-11-26 00:38:47,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9271 treesize of output 25743 [2022-11-26 00:38:51,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:51,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:51,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:51,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:51,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:51,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:51,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:51,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:52,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:52,440 INFO L217 Elim1Store]: Index analysis took 511 ms [2022-11-26 00:38:52,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 11026 treesize of output 14183 [2022-11-26 00:38:54,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:54,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:54,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:54,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:54,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:54,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:54,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:54,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:54,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:54,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:54,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:54,623 INFO L217 Elim1Store]: Index analysis took 437 ms [2022-11-26 00:38:54,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6026 treesize of output 5566 [2022-11-26 00:38:54,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:54,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:55,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:55,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:55,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:55,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:55,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:55,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:55,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:55,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:55,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:55,514 INFO L217 Elim1Store]: Index analysis took 486 ms [2022-11-26 00:38:55,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6026 treesize of output 5566 [2022-11-26 00:38:55,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:55,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:56,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:56,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:56,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:56,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:56,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:56,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:57,580 INFO L217 Elim1Store]: Index analysis took 1536 ms [2022-11-26 00:38:57,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 6818 treesize of output 14441 [2022-11-26 00:38:58,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,380 INFO L217 Elim1Store]: Index analysis took 248 ms [2022-11-26 00:38:58,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 7167 treesize of output 9684 [2022-11-26 00:38:58,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:58,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:38:58,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:58,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:58,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:58,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:38:59,188 INFO L217 Elim1Store]: Index analysis took 425 ms [2022-11-26 00:38:59,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9852 treesize of output 9347