./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s42if.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/s42if.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7 --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 7a409beec5345d23de858b9cfc2d898f0f9067f3e0e10973225e4b6022343f4a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:30:11,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:30:11,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:30:11,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:30:11,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:30:11,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:30:11,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:30:11,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:30:11,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:30:11,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:30:11,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:30:11,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:30:11,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:30:11,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:30:11,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:30:11,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:30:11,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:30:11,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:30:11,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:30:11,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:30:11,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:30:11,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:30:11,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:30:11,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:30:11,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:30:11,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:30:11,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:30:11,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:30:11,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:30:11,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:30:11,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:30:11,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:30:11,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:30:11,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:30:11,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:30:11,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:30:11,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:30:11,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:30:11,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:30:11,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:30:11,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:30:11,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:30:11,483 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:30:11,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:30:11,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:30:11,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:30:11,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:30:11,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:30:11,487 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:30:11,487 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:30:11,487 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:30:11,487 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:30:11,489 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:30:11,489 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:30:11,489 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:30:11,490 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:30:11,490 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:30:11,490 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:30:11,490 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:30:11,491 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:30:11,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:30:11,492 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:30:11,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:30:11,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:30:11,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:30:11,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:30:11,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:30:11,494 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:30:11,496 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:30:11,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:30:11,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:30:11,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:30:11,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:30:11,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:30:11,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:30:11,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:30:11,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:30:11,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:30:11,499 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:30:11,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:30:11,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:30:11,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:30:11,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:30:11,500 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a409beec5345d23de858b9cfc2d898f0f9067f3e0e10973225e4b6022343f4a [2021-11-25 18:30:11,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:30:11,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:30:11,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:30:11,926 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:30:11,927 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:30:11,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/array-fpi/s42if.c [2021-11-25 18:30:11,989 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/data/af9cab4df/a4cc79b488f044d2bab14c631a0165c0/FLAGac4d0d784 [2021-11-25 18:30:12,593 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:30:12,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/sv-benchmarks/c/array-fpi/s42if.c [2021-11-25 18:30:12,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/data/af9cab4df/a4cc79b488f044d2bab14c631a0165c0/FLAGac4d0d784 [2021-11-25 18:30:12,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/data/af9cab4df/a4cc79b488f044d2bab14c631a0165c0 [2021-11-25 18:30:12,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:30:12,955 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:30:12,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:30:12,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:30:12,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:30:12,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:12" (1/1) ... [2021-11-25 18:30:12,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ccc24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:12, skipping insertion in model container [2021-11-25 18:30:12,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:30:12" (1/1) ... [2021-11-25 18:30:12,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:30:12,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:30:13,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/sv-benchmarks/c/array-fpi/s42if.c[588,601] [2021-11-25 18:30:13,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:30:13,250 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:30:13,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/sv-benchmarks/c/array-fpi/s42if.c[588,601] [2021-11-25 18:30:13,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:30:13,291 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:30:13,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13 WrapperNode [2021-11-25 18:30:13,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:30:13,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:30:13,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:30:13,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:30:13,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,352 INFO L137 Inliner]: procedures = 17, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2021-11-25 18:30:13,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:30:13,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:30:13,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:30:13,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:30:13,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:30:13,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:30:13,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:30:13,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:30:13,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (1/1) ... [2021-11-25 18:30:13,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:30:13,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:13,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:30:13,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:30:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:30:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:30:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:30:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:30:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:30:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:30:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:30:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:30:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:30:13,605 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:30:13,607 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:30:13,915 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:30:13,982 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:30:13,982 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-25 18:30:13,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:13 BoogieIcfgContainer [2021-11-25 18:30:13,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:30:13,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:30:13,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:30:14,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:30:14,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:30:12" (1/3) ... [2021-11-25 18:30:14,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fa9fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:14, skipping insertion in model container [2021-11-25 18:30:14,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:30:13" (2/3) ... [2021-11-25 18:30:14,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76fa9fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:14, skipping insertion in model container [2021-11-25 18:30:14,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:13" (3/3) ... [2021-11-25 18:30:14,008 INFO L111 eAbstractionObserver]: Analyzing ICFG s42if.c [2021-11-25 18:30:14,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:30:14,016 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:30:14,098 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:30:14,106 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:30:14,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:30:14,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:14,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 18:30:14,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:14,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:14,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:14,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:14,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1162179950, now seen corresponding path program 1 times [2021-11-25 18:30:14,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:14,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320887072] [2021-11-25 18:30:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:14,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:14,509 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:14,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320887072] [2021-11-25 18:30:14,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320887072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:14,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:14,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:30:14,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309302583] [2021-11-25 18:30:14,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:14,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:30:14,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:14,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:30:14,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:30:14,557 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:14,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:14,614 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-11-25 18:30:14,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:30:14,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 18:30:14,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:14,628 INFO L225 Difference]: With dead ends: 20 [2021-11-25 18:30:14,628 INFO L226 Difference]: Without dead ends: 9 [2021-11-25 18:30:14,631 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:30:14,637 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:14,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:30:14,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-25 18:30:14,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-25 18:30:14,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:14,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-11-25 18:30:14,668 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 7 [2021-11-25 18:30:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:14,668 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-11-25 18:30:14,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:14,669 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-25 18:30:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 18:30:14,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:14,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:14,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:30:14,671 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:14,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:14,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1871859412, now seen corresponding path program 1 times [2021-11-25 18:30:14,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:14,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122619012] [2021-11-25 18:30:14,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:14,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:30:14,757 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:14,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122619012] [2021-11-25 18:30:14,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122619012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:30:14,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:30:14,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:30:14,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637539980] [2021-11-25 18:30:14,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:30:14,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:30:14,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:14,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:30:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:30:14,761 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:14,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:14,802 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-11-25 18:30:14,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:30:14,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 18:30:14,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:14,804 INFO L225 Difference]: With dead ends: 15 [2021-11-25 18:30:14,804 INFO L226 Difference]: Without dead ends: 11 [2021-11-25 18:30:14,805 INFO L932 BasicCegarLoop]: 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 [2021-11-25 18:30:14,807 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:14,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:30:14,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-25 18:30:14,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-25 18:30:14,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:14,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-11-25 18:30:14,814 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2021-11-25 18:30:14,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:14,815 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-11-25 18:30:14,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:14,815 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-25 18:30:14,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 18:30:14,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:14,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:14,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:30:14,817 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:14,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:14,818 INFO L85 PathProgramCache]: Analyzing trace with hash 908788323, now seen corresponding path program 1 times [2021-11-25 18:30:14,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:14,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551949] [2021-11-25 18:30:14,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:14,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:14,846 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:30:14,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105544671] [2021-11-25 18:30:14,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:14,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:14,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:14,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:14,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:30:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:14,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-25 18:30:14,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:15,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2021-11-25 18:30:15,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:30:15,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-25 18:30:15,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 32 treesize of output 23 [2021-11-25 18:30:15,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 36 treesize of output 23 [2021-11-25 18:30:15,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2021-11-25 18:30:15,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:15,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:30:15,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 5 [2021-11-25 18:30:15,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:30:16,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:16,221 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:16,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551949] [2021-11-25 18:30:16,221 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:30:16,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105544671] [2021-11-25 18:30:16,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105544671] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:30:16,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1731130167] [2021-11-25 18:30:16,246 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-25 18:30:16,246 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:30:16,251 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:30:16,258 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:30:16,259 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:30:16,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:16,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:30:16,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:16,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:16,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:16,463 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 18:30:16,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2021-11-25 18:30:16,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:16,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:16,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:30:16,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:16,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:16,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 18:30:16,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:16,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:30:16,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:30:16,887 INFO L354 Elim1Store]: treesize reduction 112, result has 20.0 percent of original size [2021-11-25 18:30:16,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 327 treesize of output 329 [2021-11-25 18:30:17,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:30:17,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-25 18:30:17,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-25 18:30:17,314 INFO L354 Elim1Store]: treesize reduction 47, result has 44.0 percent of original size [2021-11-25 18:30:17,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 127 [2021-11-25 18:30:17,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:17,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 21 [2021-11-25 18:30:17,397 INFO L354 Elim1Store]: treesize reduction 12, result has 7.7 percent of original size [2021-11-25 18:30:17,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 1 [2021-11-25 18:30:17,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 23 [2021-11-25 18:30:17,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:17,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 24 [2021-11-25 18:30:17,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2021-11-25 18:30:17,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:17,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 18 [2021-11-25 18:30:17,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:30:17,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:30:17,782 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 18:30:17,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2021-11-25 18:30:17,828 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 18:30:17,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2021-11-25 18:30:18,012 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:30:18,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2021-11-25 18:30:18,158 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:30:18,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2021-11-25 18:30:18,219 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:30:18,726 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '170#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (ite (= (* 5 ~N~0) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem17#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 18:30:18,726 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:30:18,727 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:30:18,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-11-25 18:30:18,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80154884] [2021-11-25 18:30:18,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:30:18,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 18:30:18,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:18,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 18:30:18,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-11-25 18:30:18,730 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:18,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:18,916 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2021-11-25 18:30:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:30:18,917 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-25 18:30:18,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:18,918 INFO L225 Difference]: With dead ends: 19 [2021-11-25 18:30:18,918 INFO L226 Difference]: Without dead ends: 16 [2021-11-25 18:30:18,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-11-25 18:30:18,921 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:18,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 17 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 2 Unchecked, 0.2s Time] [2021-11-25 18:30:18,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-25 18:30:18,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-11-25 18:30:18,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-11-25 18:30:18,937 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 10 [2021-11-25 18:30:18,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:18,938 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-25 18:30:18,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:18,939 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-25 18:30:18,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 18:30:18,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:18,943 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:18,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:19,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:19,144 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:19,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:19,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1323033207, now seen corresponding path program 2 times [2021-11-25 18:30:19,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:19,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072678738] [2021-11-25 18:30:19,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:19,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:19,176 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:30:19,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [950320475] [2021-11-25 18:30:19,176 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:30:19,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:19,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:19,178 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:19,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:30:19,278 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 18:30:19,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:30:19,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:30:19,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:19,342 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:30:19,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:30:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:30:19,388 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:19,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072678738] [2021-11-25 18:30:19,388 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:30:19,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950320475] [2021-11-25 18:30:19,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950320475] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:30:19,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [920388358] [2021-11-25 18:30:19,401 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-25 18:30:19,402 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:30:19,402 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:30:19,402 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:30:19,403 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:30:19,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:19,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:19,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:19,529 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 18:30:19,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2021-11-25 18:30:19,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:19,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:30:19,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:19,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:19,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:30:19,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:19,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:19,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 18:30:19,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:19,775 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:30:19,782 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:30:19,840 INFO L354 Elim1Store]: treesize reduction 112, result has 20.0 percent of original size [2021-11-25 18:30:19,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 327 treesize of output 329 [2021-11-25 18:30:19,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:30:19,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:30:20,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:30:20,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:20,110 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:30:20,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 112 [2021-11-25 18:30:20,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:20,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 32 [2021-11-25 18:30:20,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:20,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 31 [2021-11-25 18:30:20,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:20,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2021-11-25 18:30:20,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:30:20,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:30:20,303 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:30:20,329 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 18:30:20,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2021-11-25 18:30:20,344 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:30:20,380 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 18:30:20,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2021-11-25 18:30:20,529 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:30:20,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2021-11-25 18:30:20,598 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:30:20,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2021-11-25 18:30:20,708 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:30:20,992 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '298#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (ite (= (* 5 ~N~0) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem17#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 18:30:20,992 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:30:20,993 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:30:20,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-25 18:30:20,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639205867] [2021-11-25 18:30:20,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:30:20,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 18:30:20,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:20,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 18:30:20,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-25 18:30:20,995 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:21,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:21,143 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-11-25 18:30:21,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:30:21,144 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 18:30:21,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:21,144 INFO L225 Difference]: With dead ends: 23 [2021-11-25 18:30:21,145 INFO L226 Difference]: Without dead ends: 18 [2021-11-25 18:30:21,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2021-11-25 18:30:21,146 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:21,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:30:21,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-25 18:30:21,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2021-11-25 18:30:21,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:21,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-11-25 18:30:21,153 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 11 [2021-11-25 18:30:21,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:21,153 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-11-25 18:30:21,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:21,153 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-11-25 18:30:21,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 18:30:21,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:21,155 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:21,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:21,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:21,382 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:21,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:21,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1892164875, now seen corresponding path program 3 times [2021-11-25 18:30:21,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:21,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127880752] [2021-11-25 18:30:21,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:21,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:21,435 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:30:21,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1557027655] [2021-11-25 18:30:21,436 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 18:30:21,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:21,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:21,437 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:21,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:30:21,490 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 18:30:21,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:30:21,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:30:21,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:21,533 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:30:21,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:30:21,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:30:21,569 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:21,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127880752] [2021-11-25 18:30:21,569 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:30:21,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557027655] [2021-11-25 18:30:21,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557027655] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:30:21,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1581962707] [2021-11-25 18:30:21,572 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-25 18:30:21,572 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:30:21,572 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:30:21,573 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:30:21,573 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:30:21,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:21,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:21,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:21,674 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 18:30:21,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2021-11-25 18:30:21,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:21,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:30:21,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:21,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:21,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:30:21,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:21,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:21,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2021-11-25 18:30:21,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:21,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:30:21,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:30:21,901 INFO L354 Elim1Store]: treesize reduction 112, result has 20.0 percent of original size [2021-11-25 18:30:21,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 327 treesize of output 329 [2021-11-25 18:30:22,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:30:22,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:30:22,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:30:22,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:22,113 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:30:22,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 112 [2021-11-25 18:30:22,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:22,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2021-11-25 18:30:22,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:22,153 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:30:22,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 34 [2021-11-25 18:30:22,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:22,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 30 [2021-11-25 18:30:22,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:30:22,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:30:22,256 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 18:30:22,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2021-11-25 18:30:22,287 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 18:30:22,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2021-11-25 18:30:22,403 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:30:22,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2021-11-25 18:30:22,473 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:30:22,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2021-11-25 18:30:22,577 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:30:22,882 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '439#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (ite (= (* 5 ~N~0) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem17#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 18:30:22,882 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:30:22,882 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:30:22,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-11-25 18:30:22,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181528161] [2021-11-25 18:30:22,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:30:22,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 18:30:22,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:22,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 18:30:22,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-25 18:30:22,884 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:22,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:22,960 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-11-25 18:30:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:30:22,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 18:30:22,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:22,961 INFO L225 Difference]: With dead ends: 25 [2021-11-25 18:30:22,962 INFO L226 Difference]: Without dead ends: 14 [2021-11-25 18:30:22,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-25 18:30:22,963 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:22,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 10 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:30:22,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-25 18:30:22,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-25 18:30:22,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-11-25 18:30:22,967 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2021-11-25 18:30:22,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:22,968 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-25 18:30:22,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:22,968 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-25 18:30:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 18:30:22,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:22,968 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:22,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:23,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:23,182 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:23,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:23,184 INFO L85 PathProgramCache]: Analyzing trace with hash 824956914, now seen corresponding path program 4 times [2021-11-25 18:30:23,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:23,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272099775] [2021-11-25 18:30:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:23,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:23,213 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:30:23,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [239079230] [2021-11-25 18:30:23,213 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 18:30:23,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:23,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:23,215 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:23,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:30:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:30:23,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-25 18:30:23,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:23,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2021-11-25 18:30:23,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:30:23,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-25 18:30:23,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:23,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 28 treesize of output 30 [2021-11-25 18:30:23,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:23,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2021-11-25 18:30:23,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:23,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2021-11-25 18:30:23,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 94 [2021-11-25 18:30:23,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 22 [2021-11-25 18:30:23,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 44 treesize of output 36 [2021-11-25 18:30:23,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 33 [2021-11-25 18:30:23,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 30 [2021-11-25 18:30:23,869 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:30:23,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:30:23,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 5 [2021-11-25 18:30:24,141 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6)))) (let ((.cse0 (= .cse3 5)) (.cse4 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 4))) (.cse1 (not .cse0))) (and (or (forall ((v_ArrVal_210 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_210) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4)))) .cse0) (or (forall ((v_ArrVal_210 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_210) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4)) (select v_ArrVal_210 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) .cse0) (or .cse1 (= 5 .cse2)) (or (= (* 5 c_~N~0) (+ .cse3 .cse4 .cse2)) .cse1)))))) is different from false [2021-11-25 18:30:24,223 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse0 (= .cse3 5))) (let ((.cse2 (not .cse0)) (.cse1 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (and (or (forall ((v_ArrVal_210 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_210) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (select v_ArrVal_210 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) .cse0) (or .cse0 (forall ((v_ArrVal_210 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_210) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) (or (= .cse1 5) .cse2) (or .cse2 (= (* 5 c_~N~0) (+ .cse3 .cse1 .cse4))))))) is different from false [2021-11-25 18:30:24,603 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse20 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse21 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (let ((.cse22 (select .cse20 .cse21))) (let ((.cse0 (= .cse22 1))) (and (or .cse0 (and (forall ((v_ArrVal_209 (Array Int Int))) (or (= 5 (select v_ArrVal_209 |c_ULTIMATE.start_main_~a~0#1.offset|)) (forall ((v_ArrVal_210 (Array Int Int))) (= (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_209) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_210) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (select v_ArrVal_210 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (* 5 c_~N~0))))) (forall ((v_ArrVal_209 (Array Int Int))) (let ((.cse3 (select v_ArrVal_209 |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (= 5 (select (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_209))) (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (let ((.cse2 (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse3))))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (not (= 5 .cse3))))) (forall ((v_ArrVal_209 (Array Int Int))) (or (forall ((v_ArrVal_210 (Array Int Int))) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_209) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_210) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (= 5 (select v_ArrVal_209 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (forall ((v_ArrVal_209 (Array Int Int))) (let ((.cse4 (select v_ArrVal_209 |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (not (= 5 .cse4)) (= (* 5 c_~N~0) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_209))) (let ((.cse7 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse5 (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse5 (select (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse5 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) .cse4)))))))))) (or (let ((.cse19 (store .cse20 .cse21 (+ .cse22 4)))) (let ((.cse17 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse19))) (let ((.cse14 (select .cse19 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse18 (select .cse17 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse12 (select .cse18 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse8 (= 5 .cse14))) (let ((.cse11 (not .cse8)) (.cse13 (select (select (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse18 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse14))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (and (or .cse8 (forall ((v_ArrVal_210 (Array Int Int))) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse10 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse9 .cse10 (+ (select .cse9 .cse10) 4)))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_210) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) (or .cse11 (= (+ .cse12 .cse13 .cse14) (* 5 c_~N~0))) (or .cse11 (= .cse13 5)) (or .cse8 (forall ((v_ArrVal_210 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse15 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse16 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse15 .cse16 (+ (select .cse15 .cse16) 4)))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_210) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (select v_ArrVal_210 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))))))))) (not .cse0)))))) is different from false [2021-11-25 18:30:24,919 INFO L354 Elim1Store]: treesize reduction 19, result has 68.3 percent of original size [2021-11-25 18:30:24,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 695 treesize of output 393 [2021-11-25 18:30:25,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 3 [2021-11-25 18:30:49,564 WARN L227 SmtUtils]: Spent 17.64s on a formula simplification. DAG size of input: 131 DAG size of output: 40 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:30:50,897 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2021-11-25 18:30:50,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:50,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272099775] [2021-11-25 18:30:50,898 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:30:50,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239079230] [2021-11-25 18:30:50,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239079230] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:30:50,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1204038416] [2021-11-25 18:30:50,901 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-25 18:30:50,901 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:30:50,902 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:30:50,902 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:30:50,902 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:30:50,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:51,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:51,266 INFO L354 Elim1Store]: treesize reduction 65, result has 32.3 percent of original size [2021-11-25 18:30:51,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 52 [2021-11-25 18:30:51,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:51,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:30:51,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:51,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:51,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:51,880 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 18:30:51,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2021-11-25 18:30:51,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:51,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:51,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2021-11-25 18:30:52,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:52,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:52,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:30:52,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:52,250 INFO L354 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2021-11-25 18:30:52,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 332 treesize of output 328 [2021-11-25 18:30:52,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:30:52,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:30:52,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:30:52,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:52,463 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:30:52,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 112 [2021-11-25 18:30:52,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:52,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2021-11-25 18:30:52,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:52,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 32 [2021-11-25 18:30:52,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:52,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 36 [2021-11-25 18:30:52,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:30:52,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:30:52,898 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 18:30:52,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2021-11-25 18:30:53,142 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 18:30:53,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2021-11-25 18:30:53,456 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:30:53,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2021-11-25 18:30:53,816 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:30:53,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2021-11-25 18:30:53,885 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:30:56,280 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '605#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (ite (= (* 5 ~N~0) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem17#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 18:30:56,280 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:30:56,280 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:30:56,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-11-25 18:30:56,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019560988] [2021-11-25 18:30:56,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:30:56,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-25 18:30:56,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:30:56,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-25 18:30:56,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=401, Unknown=7, NotChecked=126, Total=600 [2021-11-25 18:30:56,284 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 21 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:57,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:30:57,533 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2021-11-25 18:30:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 18:30:57,534 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 18:30:57,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:30:57,535 INFO L225 Difference]: With dead ends: 24 [2021-11-25 18:30:57,535 INFO L226 Difference]: Without dead ends: 21 [2021-11-25 18:30:57,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 10 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=73, Invalid=438, Unknown=7, NotChecked=132, Total=650 [2021-11-25 18:30:57,537 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:30:57,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 119 Invalid, 0 Unknown, 49 Unchecked, 0.8s Time] [2021-11-25 18:30:57,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-25 18:30:57,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-11-25 18:30:57,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:57,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-11-25 18:30:57,544 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 13 [2021-11-25 18:30:57,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:30:57,545 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-25 18:30:57,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:30:57,545 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-11-25 18:30:57,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 18:30:57,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:30:57,546 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:30:57,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:30:57,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 18:30:57,747 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:30:57,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:30:57,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1276501236, now seen corresponding path program 5 times [2021-11-25 18:30:57,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:30:57,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334581568] [2021-11-25 18:30:57,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:30:57,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:30:57,797 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:30:57,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118813463] [2021-11-25 18:30:57,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:30:57,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:30:57,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:30:57,808 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:30:57,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:30:58,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 18:30:58,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:30:58,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 18:30:58,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:30:58,538 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:30:58,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:30:58,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:30:58,843 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:30:58,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334581568] [2021-11-25 18:30:58,843 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:30:58,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118813463] [2021-11-25 18:30:58,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118813463] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:30:58,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [627187791] [2021-11-25 18:30:58,846 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-25 18:30:58,847 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:30:58,847 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:30:58,847 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:30:58,848 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:30:58,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:58,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:58,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:59,396 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 18:30:59,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2021-11-25 18:30:59,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:59,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:59,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:30:59,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:59,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:30:59,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:59,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:59,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2021-11-25 18:30:59,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:59,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:59,694 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:30:59,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:30:59,867 INFO L354 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2021-11-25 18:30:59,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 332 treesize of output 328 [2021-11-25 18:30:59,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:31:00,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:31:00,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:31:00,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:00,126 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:31:00,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 112 [2021-11-25 18:31:00,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:00,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 30 [2021-11-25 18:31:00,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:00,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 64 [2021-11-25 18:31:00,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:31:00,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:31:00,349 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:00,499 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 18:31:00,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2021-11-25 18:31:00,533 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:00,718 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 18:31:00,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2021-11-25 18:31:01,158 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:31:01,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2021-11-25 18:31:01,528 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:31:01,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2021-11-25 18:31:01,661 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:31:03,012 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '777#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (ite (= (* 5 ~N~0) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem17#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 18:31:03,012 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:31:03,013 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:31:03,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-11-25 18:31:03,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122933406] [2021-11-25 18:31:03,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:31:03,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 18:31:03,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:31:03,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 18:31:03,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-11-25 18:31:03,016 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:31:03,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:31:03,942 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-11-25 18:31:03,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 18:31:03,943 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-25 18:31:03,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:31:03,944 INFO L225 Difference]: With dead ends: 29 [2021-11-25 18:31:03,944 INFO L226 Difference]: Without dead ends: 23 [2021-11-25 18:31:03,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-11-25 18:31:03,946 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:31:03,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 18:31:03,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-25 18:31:03,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2021-11-25 18:31:03,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:31:03,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-11-25 18:31:03,954 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 14 [2021-11-25 18:31:03,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:31:03,954 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-11-25 18:31:03,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:31:03,955 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-11-25 18:31:03,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 18:31:03,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:31:03,956 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:31:03,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 18:31:04,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:31:04,157 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:31:04,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:31:04,157 INFO L85 PathProgramCache]: Analyzing trace with hash -195971258, now seen corresponding path program 6 times [2021-11-25 18:31:04,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:31:04,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193780818] [2021-11-25 18:31:04,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:31:04,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:31:04,212 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:31:04,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [964887655] [2021-11-25 18:31:04,212 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 18:31:04,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:31:04,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:31:04,214 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:31:04,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 18:31:04,298 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 18:31:04,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:31:04,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 18:31:04,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:31:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:31:04,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:31:04,951 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:31:04,951 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:31:04,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193780818] [2021-11-25 18:31:04,952 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:31:04,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964887655] [2021-11-25 18:31:04,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964887655] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:31:04,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1928149347] [2021-11-25 18:31:04,955 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-25 18:31:04,955 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:31:04,955 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:31:04,955 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:31:04,956 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:31:04,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,410 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 18:31:05,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2021-11-25 18:31:05,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:31:05,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:31:05,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2021-11-25 18:31:05,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,716 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:05,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:05,910 INFO L354 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2021-11-25 18:31:05,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 332 treesize of output 328 [2021-11-25 18:31:06,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:31:06,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:31:06,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:31:06,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:06,154 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:31:06,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 112 [2021-11-25 18:31:06,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:06,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 27 [2021-11-25 18:31:06,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:06,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 70 [2021-11-25 18:31:06,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:31:06,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:31:06,399 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:06,602 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 18:31:06,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2021-11-25 18:31:06,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:06,852 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 18:31:06,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2021-11-25 18:31:07,269 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:31:07,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2021-11-25 18:31:07,586 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:31:07,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2021-11-25 18:31:07,680 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:31:08,912 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '959#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (ite (= (* 5 ~N~0) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem17#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 18:31:08,912 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:31:08,913 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:31:08,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-11-25 18:31:08,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976443228] [2021-11-25 18:31:08,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:31:08,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 18:31:08,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:31:08,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 18:31:08,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-11-25 18:31:08,914 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:31:09,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:31:09,516 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2021-11-25 18:31:09,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 18:31:09,516 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-25 18:31:09,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:31:09,517 INFO L225 Difference]: With dead ends: 31 [2021-11-25 18:31:09,517 INFO L226 Difference]: Without dead ends: 17 [2021-11-25 18:31:09,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-11-25 18:31:09,519 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:31:09,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 18:31:09,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-25 18:31:09,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-25 18:31:09,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:31:09,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-11-25 18:31:09,526 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2021-11-25 18:31:09,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:31:09,527 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-11-25 18:31:09,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:31:09,527 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-11-25 18:31:09,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 18:31:09,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:31:09,528 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:31:09,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 18:31:09,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:31:09,731 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:31:09,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:31:09,731 INFO L85 PathProgramCache]: Analyzing trace with hash 852757123, now seen corresponding path program 7 times [2021-11-25 18:31:09,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:31:09,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894144979] [2021-11-25 18:31:09,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:31:09,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:31:09,776 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:31:09,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908384865] [2021-11-25 18:31:09,777 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 18:31:09,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:31:09,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:31:09,778 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:31:09,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 18:31:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:31:09,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 76 conjunts are in the unsatisfiable core [2021-11-25 18:31:09,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:31:09,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:31:09,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 8 [2021-11-25 18:31:10,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-25 18:31:10,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:10,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 28 treesize of output 30 [2021-11-25 18:31:10,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:10,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:10,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:10,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 42 [2021-11-25 18:31:11,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:11,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:11,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:11,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2021-11-25 18:31:11,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 98 [2021-11-25 18:31:11,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:11,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:11,416 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:31:11,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:11,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 62 [2021-11-25 18:31:11,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 11 [2021-11-25 18:31:11,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:11,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:11,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:11,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2021-11-25 18:31:12,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 101 [2021-11-25 18:31:12,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 22 [2021-11-25 18:31:12,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 [2021-11-25 18:31:13,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:31:13,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2021-11-25 18:31:13,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2021-11-25 18:31:13,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 35 [2021-11-25 18:31:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:31:14,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:31:14,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 5 [2021-11-25 18:31:15,153 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6)))) (let ((.cse0 (= .cse3 5)) (.cse4 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 4))) (.cse1 (not .cse0))) (and (or (forall ((v_ArrVal_433 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_433) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4)) (select v_ArrVal_433 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) .cse0) (or .cse1 (= 5 .cse2)) (or .cse0 (forall ((v_ArrVal_433 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_433) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4))))) (or (= (* 5 c_~N~0) (+ .cse3 .cse4 .cse2)) .cse1)))))) is different from false [2021-11-25 18:31:16,804 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse16 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse12 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse16)))) (let ((.cse0 (= .cse12 5)) (.cse6 (forall ((v_ArrVal_433 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_433) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 (* |c_ULTIMATE.start_main_~i~0#1| 4)))))) (.cse5 (forall ((v_ArrVal_433 (Array Int Int))) (= (* 5 c_~N~0) (+ (select v_ArrVal_433 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_433) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 (* |c_ULTIMATE.start_main_~i~0#1| 4)))))))) (and (or .cse0 (let ((.cse4 (forall ((v_ArrVal_431 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_431) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4)))))) (and (forall ((v_ArrVal_431 (Array Int Int))) (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_431) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 4)))) (or (= (* 5 c_~N~0) (let ((.cse2 (select v_ArrVal_431 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_431 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse3)) .cse1 .cse2))) (not (= 5 .cse1)))))) (or .cse4 .cse5) (or .cse4 .cse6) (forall ((v_ArrVal_431 (Array Int Int))) (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse7 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_431) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 4)))) (or (not (= 5 .cse7)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_431 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse7 (select v_ArrVal_431 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse8)) 5)))))))) (or (not .cse0) (let ((.cse15 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse13 (select .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse14 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse16 4)))) (let ((.cse9 (= 5 .cse14))) (let ((.cse11 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse13 .cse14))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse16))) (.cse10 (not .cse9))) (and (or .cse6 .cse9) (or .cse5 .cse9) (or .cse10 (= 5 .cse11)) (or (= (* 5 c_~N~0) (+ .cse12 .cse11 .cse13 .cse14)) .cse10)))))))))))) is different from false [2021-11-25 18:31:17,704 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse9 (= .cse3 5)) (.cse7 (forall ((v_ArrVal_433 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_433) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))) (.cse1 (forall ((v_ArrVal_433 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_433) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) (select v_ArrVal_433 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (and (or (let ((.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse6 (select .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse0 (= .cse4 5))) (let ((.cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (.cse2 (not .cse0))) (and (or .cse0 .cse1) (or .cse2 (= (* 5 c_~N~0) (+ .cse3 .cse4 .cse5 .cse6))) (or (= .cse5 5) .cse2) (or .cse0 .cse7))))))) (not .cse9)) (or .cse9 (let ((.cse10 (forall ((v_ArrVal_431 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_431) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))))) (and (or .cse10 .cse7) (forall ((v_ArrVal_431 (Array Int Int))) (let ((.cse11 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_431) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (or (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_431 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse11 (select v_ArrVal_431 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (not (= 5 .cse11))))) (or .cse1 .cse10) (forall ((v_ArrVal_431 (Array Int Int))) (let ((.cse12 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_431) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (or (not (= 5 .cse12)) (= (let ((.cse13 (select v_ArrVal_431 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse12 .cse13 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_431 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (* 5 c_~N~0))))))))))) is different from false [2021-11-25 18:32:41,173 WARN L227 SmtUtils]: Spent 53.50s on a formula simplification. DAG size of input: 148 DAG size of output: 111 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:32:43,552 INFO L354 Elim1Store]: treesize reduction 19, result has 68.3 percent of original size [2021-11-25 18:32:43,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 1222 treesize of output 537 [2021-11-25 18:32:44,516 INFO L354 Elim1Store]: treesize reduction 6, result has 53.8 percent of original size [2021-11-25 18:32:44,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 17 [2021-11-25 18:32:45,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 3 [2021-11-25 18:32:48,671 INFO L354 Elim1Store]: treesize reduction 6, result has 53.8 percent of original size [2021-11-25 18:32:48,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 17 [2021-11-25 18:33:37,236 WARN L227 SmtUtils]: Spent 34.79s on a formula simplification. DAG size of input: 156 DAG size of output: 48 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 18:33:37,589 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:33:37,620 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:33:40,454 INFO L354 Elim1Store]: treesize reduction 47, result has 61.2 percent of original size [2021-11-25 18:33:40,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1940 treesize of output 561 [2021-11-25 18:33:45,624 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:33:45,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 treesize of output 3 [2021-11-25 18:34:00,925 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-25 18:34:00,925 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:34:00,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894144979] [2021-11-25 18:34:00,925 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:34:00,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908384865] [2021-11-25 18:34:00,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908384865] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:34:00,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1850377811] [2021-11-25 18:34:00,928 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-25 18:34:00,929 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:34:00,929 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:34:00,929 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:34:00,929 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:34:01,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:01,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:01,470 INFO L354 Elim1Store]: treesize reduction 65, result has 32.3 percent of original size [2021-11-25 18:34:01,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 52 [2021-11-25 18:34:01,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:01,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:01,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:02,054 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 18:34:02,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2021-11-25 18:34:02,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:02,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:34:02,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:02,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:02,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2021-11-25 18:34:02,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:02,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:02,370 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:02,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:02,565 INFO L354 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2021-11-25 18:34:02,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 332 treesize of output 328 [2021-11-25 18:34:02,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:34:02,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-25 18:34:02,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-25 18:34:03,130 INFO L354 Elim1Store]: treesize reduction 47, result has 44.0 percent of original size [2021-11-25 18:34:03,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 127 [2021-11-25 18:34:03,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 19 [2021-11-25 18:34:03,244 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:34:03,271 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:03,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 26 [2021-11-25 18:34:03,303 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:34:03,310 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:34:03,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:03,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 42 [2021-11-25 18:34:03,360 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:34:03,375 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:34:03,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:03,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 47 [2021-11-25 18:34:03,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:34:03,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:34:03,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:03,757 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 18:34:03,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2021-11-25 18:34:03,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:03,997 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 18:34:03,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2021-11-25 18:34:04,396 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:34:04,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2021-11-25 18:34:04,795 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:34:04,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2021-11-25 18:34:04,901 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:34:08,616 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1169#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (ite (= (* 5 ~N~0) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem17#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 18:34:08,616 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:34:08,616 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:34:08,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2021-11-25 18:34:08,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927639853] [2021-11-25 18:34:08,617 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:34:08,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-25 18:34:08,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:34:08,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-25 18:34:08,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=667, Unknown=18, NotChecked=162, Total=930 [2021-11-25 18:34:08,619 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 27 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:34:13,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:34:13,110 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-11-25 18:34:13,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 18:34:13,110 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-25 18:34:13,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:34:13,111 INFO L225 Difference]: With dead ends: 29 [2021-11-25 18:34:13,111 INFO L226 Difference]: Without dead ends: 26 [2021-11-25 18:34:13,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 150.2s TimeCoverageRelationStatistics Valid=90, Invalid=716, Unknown=18, NotChecked=168, Total=992 [2021-11-25 18:34:13,113 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:34:13,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 37 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 211 Invalid, 0 Unknown, 80 Unchecked, 3.4s Time] [2021-11-25 18:34:13,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-25 18:34:13,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2021-11-25 18:34:13,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:34:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-11-25 18:34:13,121 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2021-11-25 18:34:13,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:34:13,121 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-25 18:34:13,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:34:13,122 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-25 18:34:13,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 18:34:13,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:34:13,123 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:34:13,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 18:34:13,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:34:13,330 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:34:13,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:34:13,330 INFO L85 PathProgramCache]: Analyzing trace with hash -243683031, now seen corresponding path program 8 times [2021-11-25 18:34:13,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:34:13,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21400037] [2021-11-25 18:34:13,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:34:13,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:34:13,355 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:34:13,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1999063999] [2021-11-25 18:34:13,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 18:34:13,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:34:13,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:34:13,356 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:34:13,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 18:34:13,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 18:34:13,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:34:13,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 18:34:13,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:34:14,227 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 18:34:14,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:34:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 18:34:14,675 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:34:14,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21400037] [2021-11-25 18:34:14,676 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:34:14,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999063999] [2021-11-25 18:34:14,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999063999] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:34:14,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [998909267] [2021-11-25 18:34:14,678 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-25 18:34:14,678 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:34:14,679 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:34:14,679 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:34:14,679 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:34:14,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:14,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:34:14,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:14,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:14,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:15,290 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 18:34:15,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2021-11-25 18:34:15,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:15,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:15,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:34:15,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:15,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:15,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2021-11-25 18:34:15,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:15,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:15,562 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:15,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:15,752 INFO L354 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2021-11-25 18:34:15,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 332 treesize of output 328 [2021-11-25 18:34:15,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:34:15,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-25 18:34:15,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-25 18:34:16,312 INFO L354 Elim1Store]: treesize reduction 47, result has 44.0 percent of original size [2021-11-25 18:34:16,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 127 [2021-11-25 18:34:16,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:16,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2021-11-25 18:34:16,427 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:34:16,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:16,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 35 [2021-11-25 18:34:16,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:16,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 36 [2021-11-25 18:34:16,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:16,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 40 [2021-11-25 18:34:16,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 14 [2021-11-25 18:34:16,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 60 [2021-11-25 18:34:16,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:34:16,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:34:16,851 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:17,121 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 18:34:17,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 37 [2021-11-25 18:34:17,156 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:17,448 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 18:34:17,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 38 [2021-11-25 18:34:17,880 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:34:17,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2021-11-25 18:34:18,239 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:34:18,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2021-11-25 18:34:18,282 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:34:19,976 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1380#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (ite (= (* 5 ~N~0) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem17#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 18:34:19,976 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:34:19,976 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:34:19,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-11-25 18:34:19,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832524522] [2021-11-25 18:34:19,977 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:34:19,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 18:34:19,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:34:19,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 18:34:19,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-11-25 18:34:19,979 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:34:21,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:34:21,866 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2021-11-25 18:34:21,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 18:34:21,867 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 18:34:21,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:34:21,868 INFO L225 Difference]: With dead ends: 35 [2021-11-25 18:34:21,868 INFO L226 Difference]: Without dead ends: 28 [2021-11-25 18:34:21,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2021-11-25 18:34:21,870 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:34:21,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 18:34:21,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-25 18:34:21,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2021-11-25 18:34:21,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:34:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-11-25 18:34:21,879 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 17 [2021-11-25 18:34:21,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:34:21,879 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-11-25 18:34:21,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:34:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-25 18:34:21,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 18:34:21,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:34:21,881 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:34:21,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-25 18:34:22,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 18:34:22,106 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:34:22,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:34:22,107 INFO L85 PathProgramCache]: Analyzing trace with hash 665835221, now seen corresponding path program 9 times [2021-11-25 18:34:22,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:34:22,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33614790] [2021-11-25 18:34:22,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:34:22,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:34:22,127 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:34:22,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [708289674] [2021-11-25 18:34:22,128 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 18:34:22,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:34:22,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:34:22,147 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:34:22,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 18:34:22,262 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 18:34:22,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 18:34:22,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 18:34:22,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:34:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 18:34:22,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:34:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 18:34:23,340 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:34:23,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33614790] [2021-11-25 18:34:23,340 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:34:23,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708289674] [2021-11-25 18:34:23,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708289674] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:34:23,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [250141829] [2021-11-25 18:34:23,343 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-11-25 18:34:23,343 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:34:23,343 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:34:23,343 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:34:23,344 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:34:23,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:23,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:23,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:23,885 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 18:34:23,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 40 treesize of output 69 [2021-11-25 18:34:23,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:23,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:23,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:34:23,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:23,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:34:24,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:24,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:24,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2021-11-25 18:34:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:24,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:24,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:24,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:24,365 INFO L354 Elim1Store]: treesize reduction 110, result has 12.0 percent of original size [2021-11-25 18:34:24,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 332 treesize of output 328 [2021-11-25 18:34:24,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:34:24,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-25 18:34:24,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-25 18:34:24,876 INFO L354 Elim1Store]: treesize reduction 47, result has 44.0 percent of original size [2021-11-25 18:34:24,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 127 [2021-11-25 18:34:24,973 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:34:24,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 46 [2021-11-25 18:34:25,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:25,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 22 [2021-11-25 18:34:25,099 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:34:25,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2021-11-25 18:34:25,126 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:34:25,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2021-11-25 18:34:25,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2021-11-25 18:34:25,471 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 18:34:25,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 33 [2021-11-25 18:34:25,706 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 18:34:25,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 32 [2021-11-25 18:34:26,080 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:34:26,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 57 [2021-11-25 18:34:26,524 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 18:34:26,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 58 [2021-11-25 18:34:26,630 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:34:29,234 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1603#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (ite (= (* 5 ~N~0) |ULTIMATE.start_main_#t~mem17#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem17#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= ~N~0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#sum~0#1.base|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2021-11-25 18:34:29,234 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 18:34:29,234 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:34:29,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2021-11-25 18:34:29,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629857582] [2021-11-25 18:34:29,235 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 18:34:29,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-25 18:34:29,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:34:29,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-25 18:34:29,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2021-11-25 18:34:29,237 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:34:30,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:34:30,017 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2021-11-25 18:34:30,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 18:34:30,018 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 18:34:30,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:34:30,019 INFO L225 Difference]: With dead ends: 37 [2021-11-25 18:34:30,019 INFO L226 Difference]: Without dead ends: 20 [2021-11-25 18:34:30,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2021-11-25 18:34:30,021 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:34:30,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 18:34:30,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-25 18:34:30,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-25 18:34:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:34:30,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-11-25 18:34:30,029 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 17 [2021-11-25 18:34:30,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:34:30,029 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-11-25 18:34:30,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:34:30,029 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-11-25 18:34:30,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 18:34:30,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:34:30,030 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:34:30,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 18:34:30,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:34:30,234 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:34:30,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:34:30,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1139065518, now seen corresponding path program 10 times [2021-11-25 18:34:30,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:34:30,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056464914] [2021-11-25 18:34:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:34:30,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:34:30,252 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:34:30,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086171324] [2021-11-25 18:34:30,252 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 18:34:30,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:34:30,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:34:30,277 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:34:30,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f54590df-a80f-4368-99fc-4004c6a8b01b/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 18:34:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:34:30,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 89 conjunts are in the unsatisfiable core [2021-11-25 18:34:30,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:34:30,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:34:30,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:30,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-25 18:34:30,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:30,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:30,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 36 treesize of output 38 [2021-11-25 18:34:31,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 42 [2021-11-25 18:34:31,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:31,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-25 18:34:32,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 105 [2021-11-25 18:34:32,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,059 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:32,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 76 [2021-11-25 18:34:32,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-25 18:34:32,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 110 [2021-11-25 18:34:32,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:32,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:32,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 79 [2021-11-25 18:34:32,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 18:34:33,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 113 [2021-11-25 18:34:33,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:34:33,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 82 [2021-11-25 18:34:33,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2021-11-25 18:34:33,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:33,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-11-25 18:34:34,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:34,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 108 [2021-11-25 18:34:34,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 22 [2021-11-25 18:34:34,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2021-11-25 18:34:35,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:35,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 115 [2021-11-25 18:34:35,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 31 [2021-11-25 18:34:35,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2021-11-25 18:34:35,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:35,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:35,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:35,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:35,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:35,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:35,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:35,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 61 [2021-11-25 18:34:36,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:36,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 59 [2021-11-25 18:34:36,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:34:36,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 43 [2021-11-25 18:34:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:34:37,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:34:37,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 5 [2021-11-25 18:34:38,504 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse3 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6)))) (let ((.cse0 (= .cse3 5)) (.cse4 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 4))) (.cse1 (not .cse0))) (and (or .cse0 (forall ((v_ArrVal_724 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4)) (select v_ArrVal_724 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (or .cse1 (= 5 .cse2)) (or .cse0 (forall ((v_ArrVal_724 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4)) 5))) (or (= (* 5 c_~N~0) (+ .cse3 .cse4 .cse2)) .cse1)))))) is different from false [2021-11-25 18:34:40,441 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse16 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse17 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse13 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse17))) (.cse14 (select .cse16 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse15 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse13 .cse14))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse17 4)))) (let ((.cse4 (= .cse13 5)) (.cse2 (= 5 .cse15))) (let ((.cse0 (forall ((v_ArrVal_724 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 (* |c_ULTIMATE.start_main_~i~0#1| 4)))))) (.cse3 (forall ((v_ArrVal_720 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4))))) (.cse12 (forall ((v_ArrVal_724 (Array Int Int))) (= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (select v_ArrVal_724 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (* 5 c_~N~0)))) (.cse6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse13 .cse14 .cse15))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse17))) (.cse5 (not .cse2)) (.cse1 (not .cse4))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse4) (or .cse5 (= 5 .cse6) .cse1) (or .cse4 (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse7 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 4)))) (or (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse8))) (not (= 5 .cse7))))))) (or .cse4 (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse11 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse10 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse11 4)))) (or (= (let ((.cse9 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse9 .cse10 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse9 .cse10))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse11)))) (* 5 c_~N~0)) (not (= 5 .cse10))))))) (or .cse3 .cse4 .cse12) (or .cse1 .cse2 .cse12) (or (= (* 5 c_~N~0) (+ .cse13 .cse6 .cse14 .cse15)) .cse5 .cse1))))))) is different from false [2021-11-25 18:34:45,591 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse28 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse23 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse28)))) (let ((.cse0 (= .cse23 5)) (.cse1 (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse33 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse31 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse33)))) (or (not (= 5 .cse31)) (= (* 5 c_~N~0) (let ((.cse32 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse32 .cse31 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse32 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse33)))))))))) (.cse11 (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse30 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse29 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse30)))) (or (not (= 5 .cse29)) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse29))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse30)))))))) (.cse6 (forall ((v_ArrVal_724 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 (* |c_ULTIMATE.start_main_~i~0#1| 4)))))) (.cse3 (forall ((v_ArrVal_724 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (select v_ArrVal_724 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (.cse4 (forall ((v_ArrVal_720 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 (* |c_ULTIMATE.start_main_~i~0#1| 4))))))) (and (or .cse0 (let ((.cse5 (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse17 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse16 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse17 4)))) (or (not (= 5 .cse16)) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse16))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse17)))))))) (.cse2 (forall ((v_ArrVal_716 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4)))))) (and (or .cse1 .cse2) (or .cse3 .cse4 .cse2) (or .cse5 .cse6) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse10 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse9 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse7 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse10 4)))) (let ((.cse8 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse9 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse10)))) (or (not (= 5 .cse7)) (= (* 5 c_~N~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse8 .cse9 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse10)) .cse8 .cse9 .cse7)) (not (= 5 .cse8))))))) (or .cse11 .cse2) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse15 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse13 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse14 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse15 4)))) (let ((.cse12 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse13 .cse14))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse15)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse12 .cse13 .cse14))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse15)) 5) (not (= 5 .cse14)) (not (= 5 .cse12))))))) (or .cse3 .cse5) (or .cse4 .cse2 .cse6)))) (or (not .cse0) (let ((.cse27 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse25 (select .cse27 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse26 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse25))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse28 4)))) (let ((.cse24 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse25 .cse26))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse28)))) (let ((.cse22 (= 5 .cse24)) (.cse18 (= 5 .cse26))) (let ((.cse19 (not .cse18)) (.cse20 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse24 .cse25 .cse26))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse28))) (.cse21 (not .cse22))) (and (or .cse1 .cse18) (or .cse4 .cse18 .cse6) (or .cse19 (= 5 .cse20) .cse21) (or .cse11 .cse18) (or .cse19 .cse3 .cse22) (or .cse19 .cse22 .cse6) (or .cse19 (= (+ .cse23 .cse20 .cse24 .cse25 .cse26) (* 5 c_~N~0)) .cse21) (or .cse3 .cse4 .cse18))))))))))))) is different from false [2021-11-25 18:34:49,146 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse14 (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse27 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 5) (not (= .cse27 5)))))) (.cse11 (forall ((v_ArrVal_724 (Array Int Int))) (= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) (select v_ArrVal_724 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (* 5 c_~N~0)))) (.cse9 (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= (* 5 c_~N~0) (let ((.cse26 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse25 .cse26))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) .cse25 .cse26))) (not (= .cse25 5)))))) (.cse10 (forall ((v_ArrVal_720 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 5))) (.cse12 (forall ((v_ArrVal_724 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))) (.cse0 (= .cse2 5))) (and (or (not .cse0) (let ((.cse15 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse6 (select .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse8 (= .cse3 5)) (.cse13 (= .cse5 5))) (let ((.cse4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3 .cse5 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))) (.cse7 (not .cse13)) (.cse1 (not .cse8))) (and (or .cse1 (= (* 5 c_~N~0) (+ .cse2 .cse3 .cse4 .cse5 .cse6)) .cse7) (or .cse8 .cse9) (or .cse8 .cse10 .cse11) (or .cse1 (= .cse4 5) .cse7) (or .cse8 .cse10 .cse12) (or .cse13 .cse1 .cse12) (or .cse11 .cse13 .cse1) (or .cse8 .cse14))))))))) (or (let ((.cse16 (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse24 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (or (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (not (= 5 .cse24)))))) (.cse17 (forall ((v_ArrVal_716 (Array Int Int))) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))))) (and (or .cse16 .cse12) (or .cse11 .cse16) (or .cse17 .cse14) (or .cse10 .cse17 .cse11) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse19 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (.cse20 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse18 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse19 .cse20))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse18)) (= 5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse19 .cse20 .cse18))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))) (not (= 5 .cse19)))))) (or .cse17 .cse9) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse21 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (.cse22 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse23 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse21 .cse22))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse21 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) .cse21 .cse22 .cse23) (* 5 c_~N~0)) (not (= 5 .cse23)) (not (= 5 .cse21)))))) (or .cse10 .cse17 .cse12))) .cse0)))) is different from false [2021-11-25 18:35:06,733 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse54 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse55 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (let ((.cse56 (select .cse54 .cse55))) (let ((.cse0 (= .cse56 1))) (and (or (not .cse0) (let ((.cse18 (store .cse54 .cse55 (+ .cse56 4)))) (let ((.cse11 (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse1 (= 5 .cse11)) (.cse13 (forall ((v_ArrVal_720 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse52 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse53 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse52 .cse53 (+ (select .cse52 .cse53) 4)))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 5))) (.cse3 (forall ((v_ArrVal_724 (Array Int Int))) (= (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse50 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse51 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse50 .cse51 (+ (select .cse50 .cse51) 4)))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) (select v_ArrVal_724 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (* 5 c_~N~0)))) (.cse14 (forall ((v_ArrVal_724 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse48 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse49 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse48 .cse49 (+ (select .cse48 .cse49) 4)))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 5))) (.cse15 (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse45 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse46 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse47 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse46 .cse47 (+ (select .cse46 .cse47) 4)))))) (let ((.cse43 (select (select (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= (* 5 c_~N~0) (let ((.cse44 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse43 .cse44 (select (select (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse43 .cse44))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))) (not (= .cse43 5))))))) (.cse5 (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse41 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse42 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse41 .cse42 (+ (select .cse41 .cse42) 4)))))) (let ((.cse39 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= .cse39 5)) (= 5 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))))))) (and (or (not .cse1) (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse18))) (let ((.cse17 (select .cse16 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse7 (select .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse8 (select (select (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse7 .cse11))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse10 (select (select (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse7 .cse8 .cse11))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse6 (= .cse8 5)) (.cse4 (= 5 .cse10))) (let ((.cse12 (not .cse4)) (.cse9 (select (select (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse7 .cse8 .cse10 .cse11))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))) (.cse2 (not .cse6))) (and (or .cse2 .cse3 .cse4) (or .cse5 .cse6) (or (= (+ .cse7 .cse8 .cse9 .cse10 .cse11) (* 5 c_~N~0)) .cse12 .cse2) (or .cse13 .cse3 .cse6) (or .cse13 .cse14 .cse6) (or .cse12 .cse2 (= 5 .cse9)) (or .cse2 .cse14 .cse4) (or .cse15 .cse6)))))))))) (or .cse1 (let ((.cse32 (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse35 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse37 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse38 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse37 .cse38 (+ (select .cse37 .cse38) 4)))))) (let ((.cse36 (select (select (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (or (= (select (select (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse36 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 5) (not (= .cse36 5))))))) (.cse19 (forall ((v_ArrVal_716 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse33 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse34 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse33 .cse34 (+ (select .cse33 .cse34) 4)))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 5)))) (and (or .cse13 .cse14 .cse19) (or .cse13 .cse3 .cse19) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse24 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse25 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse24 .cse25 (+ (select .cse24 .cse25) 4)))))) (let ((.cse22 (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (.cse23 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse21 (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse21 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 5) (not (= .cse22 5)) (not (= .cse21 5))))))) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse28 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse30 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse31 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse30 .cse31 (+ (select .cse30 .cse31) 4)))))) (let ((.cse27 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (.cse29 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse26 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse29))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= (* 5 c_~N~0) (+ .cse26 .cse27 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse27 .cse29))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) .cse29)) (not (= .cse27 5)) (not (= .cse26 5))))))) (or .cse32 .cse3) (or .cse32 .cse14) (or .cse15 .cse19) (or .cse5 .cse19))))))))) (or .cse0 (and (forall ((v_ArrVal_712 Int)) (let ((.cse76 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712))) (let ((.cse57 (select .cse76 |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (not (= .cse57 5)) (let ((.cse74 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse76))) (let ((.cse75 (select .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse64 (select .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse63 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse64))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse65 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse63 .cse64))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse59 (= .cse63 5)) (.cse70 (= 5 .cse65))) (let ((.cse58 (forall ((v_ArrVal_720 (Array Int Int))) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))) (.cse69 (forall ((v_ArrVal_724 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) (select v_ArrVal_724 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (.cse61 (not .cse70)) (.cse62 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse63 .cse64 .cse65))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))) (.cse66 (not .cse59)) (.cse60 (forall ((v_ArrVal_724 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 5)))) (and (or .cse58 .cse59 .cse60) (or .cse61 (= (+ .cse57 .cse62 .cse63 .cse64 .cse65) (* 5 c_~N~0)) .cse66) (or (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse68 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse67 (select (select (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse67)) (= 5 (select (select (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse67 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))))) .cse59) (or .cse69 .cse66 .cse70) (or .cse58 .cse59 .cse69) (or (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse73 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse71 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse71)) (= (* 5 c_~N~0) (let ((.cse72 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse71 .cse72 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse71 .cse72))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))))))) .cse59) (or .cse61 (= .cse62 5) .cse66) (or .cse66 .cse70 .cse60))))))))))))) (forall ((v_ArrVal_712 Int)) (or (let ((.cse82 (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse96 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse95 (select (select (store .cse96 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (or (not (= 5 .cse95)) (= (select (select (store .cse96 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse95 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 5)))))) (.cse83 (forall ((v_ArrVal_724 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 5))) (.cse84 (forall ((v_ArrVal_720 (Array Int Int))) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))) (.cse80 (forall ((v_ArrVal_716 (Array Int Int))) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) (.cse81 (forall ((v_ArrVal_724 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) (select v_ArrVal_724 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (and (or (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse79 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse77 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse77)) (= (* 5 c_~N~0) (let ((.cse78 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse77 .cse78 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse77 .cse78))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))))))) .cse80) (or .cse81 .cse82) (or .cse82 .cse83) (or .cse84 .cse80 .cse83) (or (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse86 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse85 (select (select (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse85)) (= 5 (select (select (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse85 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))))) .cse80) (or .cse84 .cse80 .cse81) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse87 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse89 (select (select (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (.cse90 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse88 (select (select (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse89 .cse90))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= 5 (select (select (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse88 .cse89 .cse90))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))) (not (= 5 .cse89)) (not (= .cse88 5))))))) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse93 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse91 (select (select (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (.cse94 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse92 (select (select (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse91 .cse94))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse91)) (not (= .cse92 5)) (= (* 5 c_~N~0) (+ .cse92 (select (select (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse92 .cse91 .cse94))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) .cse91 .cse94))))))))) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712) |c_ULTIMATE.start_main_~a~0#1.offset|) 5))))))))) is different from false [2021-11-25 18:35:08,784 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse54 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse55 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (let ((.cse56 (select .cse54 .cse55))) (let ((.cse0 (= .cse56 1))) (and (or (not .cse0) (let ((.cse18 (store .cse54 .cse55 (+ .cse56 4)))) (let ((.cse11 (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse1 (= 5 .cse11)) (.cse13 (forall ((v_ArrVal_720 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse52 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse53 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse52 .cse53 (+ (select .cse52 .cse53) 4)))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 5))) (.cse3 (forall ((v_ArrVal_724 (Array Int Int))) (= (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse50 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse51 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse50 .cse51 (+ (select .cse50 .cse51) 4)))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) (select v_ArrVal_724 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (* 5 c_~N~0)))) (.cse14 (forall ((v_ArrVal_724 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse48 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse49 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse48 .cse49 (+ (select .cse48 .cse49) 4)))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 5))) (.cse15 (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse45 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse46 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse47 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse46 .cse47 (+ (select .cse46 .cse47) 4)))))) (let ((.cse43 (select (select (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= (* 5 c_~N~0) (let ((.cse44 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse43 .cse44 (select (select (store .cse45 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse43 .cse44))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))) (not (= .cse43 5))))))) (.cse5 (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse41 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse42 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse41 .cse42 (+ (select .cse41 .cse42) 4)))))) (let ((.cse39 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= .cse39 5)) (= 5 (select (select (store .cse40 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))))))) (and (or (not .cse1) (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse18))) (let ((.cse17 (select .cse16 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse7 (select .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse8 (select (select (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse7 .cse11))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse10 (select (select (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse7 .cse8 .cse11))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse6 (= .cse8 5)) (.cse4 (= 5 .cse10))) (let ((.cse12 (not .cse4)) (.cse9 (select (select (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse17 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse7 .cse8 .cse10 .cse11))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))) (.cse2 (not .cse6))) (and (or .cse2 .cse3 .cse4) (or .cse5 .cse6) (or (= (+ .cse7 .cse8 .cse9 .cse10 .cse11) (* 5 c_~N~0)) .cse12 .cse2) (or .cse13 .cse3 .cse6) (or .cse13 .cse14 .cse6) (or .cse12 .cse2 (= 5 .cse9)) (or .cse2 .cse14 .cse4) (or .cse15 .cse6)))))))))) (or .cse1 (let ((.cse32 (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse35 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse37 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse38 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse37 .cse38 (+ (select .cse37 .cse38) 4)))))) (let ((.cse36 (select (select (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (or (= (select (select (store .cse35 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse36 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 5) (not (= .cse36 5))))))) (.cse19 (forall ((v_ArrVal_716 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse33 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse34 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse33 .cse34 (+ (select .cse33 .cse34) 4)))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 5)))) (and (or .cse13 .cse14 .cse19) (or .cse13 .cse3 .cse19) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse24 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse25 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse24 .cse25 (+ (select .cse24 .cse25) 4)))))) (let ((.cse22 (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (.cse23 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse21 (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse21 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 5) (not (= .cse22 5)) (not (= .cse21 5))))))) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse28 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse30 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse31 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)))) (store .cse30 .cse31 (+ (select .cse30 .cse31) 4)))))) (let ((.cse27 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (.cse29 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse26 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse29))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= (* 5 c_~N~0) (+ .cse26 .cse27 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse27 .cse29))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) .cse29)) (not (= .cse27 5)) (not (= .cse26 5))))))) (or .cse32 .cse3) (or .cse32 .cse14) (or .cse15 .cse19) (or .cse5 .cse19))))))))) (or .cse0 (and (forall ((v_ArrVal_712 Int)) (let ((.cse76 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712))) (let ((.cse57 (select .cse76 |c_ULTIMATE.start_main_~a~0#1.offset|))) (or (not (= .cse57 5)) (let ((.cse74 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse76))) (let ((.cse75 (select .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse64 (select .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse63 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse64))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse65 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse63 .cse64))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse59 (= .cse63 5)) (.cse70 (= 5 .cse65))) (let ((.cse58 (forall ((v_ArrVal_720 (Array Int Int))) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))) (.cse69 (forall ((v_ArrVal_724 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) (select v_ArrVal_724 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (.cse61 (not .cse70)) (.cse62 (select (select (store .cse74 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse75 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse57 .cse63 .cse64 .cse65))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))) (.cse66 (not .cse59)) (.cse60 (forall ((v_ArrVal_724 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 5)))) (and (or .cse58 .cse59 .cse60) (or .cse61 (= (+ .cse57 .cse62 .cse63 .cse64 .cse65) (* 5 c_~N~0)) .cse66) (or (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse68 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse67 (select (select (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse67)) (= 5 (select (select (store .cse68 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse67 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))))) .cse59) (or .cse69 .cse66 .cse70) (or .cse58 .cse59 .cse69) (or (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse73 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse71 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse71)) (= (* 5 c_~N~0) (let ((.cse72 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse71 .cse72 (select (select (store .cse73 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse71 .cse72))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))))))) .cse59) (or .cse61 (= .cse62 5) .cse66) (or .cse66 .cse70 .cse60))))))))))))) (forall ((v_ArrVal_712 Int)) (or (let ((.cse82 (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse96 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse95 (select (select (store .cse96 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (or (not (= 5 .cse95)) (= (select (select (store .cse96 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse95 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 5)))))) (.cse83 (forall ((v_ArrVal_724 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 5))) (.cse84 (forall ((v_ArrVal_720 (Array Int Int))) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))) (.cse80 (forall ((v_ArrVal_716 (Array Int Int))) (= 5 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) (.cse81 (forall ((v_ArrVal_724 (Array Int Int))) (= (* 5 c_~N~0) (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_724) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) (select v_ArrVal_724 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) (and (or (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse79 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse77 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse77)) (= (* 5 c_~N~0) (let ((.cse78 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse77 .cse78 (select (select (store .cse79 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse77 .cse78))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))))))) .cse80) (or .cse81 .cse82) (or .cse82 .cse83) (or .cse84 .cse80 .cse83) (or (forall ((v_ArrVal_720 (Array Int Int))) (let ((.cse86 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse85 (select (select (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_720) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse85)) (= 5 (select (select (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse85 (select v_ArrVal_720 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))))))) .cse80) (or .cse84 .cse80 .cse81) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse87 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse89 (select (select (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (.cse90 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse88 (select (select (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse89 .cse90))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= 5 (select (select (store .cse87 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse88 .cse89 .cse90))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))) (not (= 5 .cse89)) (not (= .cse88 5))))))) (forall ((v_ArrVal_716 (Array Int Int))) (let ((.cse93 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712)))) (let ((.cse91 (select (select (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_716) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (.cse94 (select v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse92 (select (select (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse91 .cse94))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 5 .cse91)) (not (= .cse92 5)) (= (* 5 c_~N~0) (+ .cse92 (select (select (store .cse93 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_716 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse92 .cse91 .cse94))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) .cse91 .cse94))))))))) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4)) v_ArrVal_712) |c_ULTIMATE.start_main_~a~0#1.offset|) 5))))))))) is different from true [2021-11-25 18:36:38,262 WARN L227 SmtUtils]: Spent 1.24m on a formula simplification. DAG size of input: 37 DAG size of output: 31 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:36:38,263 INFO L354 Elim1Store]: treesize reduction 33, result has 66.3 percent of original size [2021-11-25 18:36:38,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 4752 treesize of output 3013 [2021-11-25 18:36:52,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-25 18:38:15,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-25 18:40:46,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 6 [2021-11-25 18:41:18,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 6 [2021-11-25 18:41:28,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 6 [2021-11-25 18:41:34,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 22 [2021-11-25 18:42:02,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-25 18:43:08,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 6 [2021-11-25 18:43:47,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 treesize of output 4 [2021-11-25 18:44:05,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 6 [2021-11-25 18:44:07,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 6 [2021-11-25 18:44:14,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 22