./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s4if.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_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/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_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/s4if.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/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_3f69d6ec-d846-4208-8092-fa4acf4c7eec/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 5fe0a71bff946f0cc68d0dab1416e0ef991c6bf06ad7cbb70643ca18073a3c7e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:04:23,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:04:23,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:04:23,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:04:23,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:04:23,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:04:23,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:04:23,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:04:23,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:04:23,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:04:23,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:04:23,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:04:23,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:04:23,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:04:23,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:04:23,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:04:23,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:04:23,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:04:23,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:04:23,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:04:23,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:04:23,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:04:23,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:04:23,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:04:23,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:04:23,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:04:23,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:04:23,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:04:23,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:04:23,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:04:23,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:04:23,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:04:23,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:04:23,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:04:23,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:04:23,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:04:23,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:04:23,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:04:23,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:04:23,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:04:23,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:04:23,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:04:23,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:04:23,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:04:23,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:04:23,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:04:23,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:04:23,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:04:23,439 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:04:23,439 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:04:23,439 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:04:23,439 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:04:23,440 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:04:23,440 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:04:23,441 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:04:23,441 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:04:23,441 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:04:23,441 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:04:23,441 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:04:23,441 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:04:23,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:04:23,442 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:04:23,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:04:23,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:04:23,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:04:23,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:04:23,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:04:23,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:04:23,445 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:04:23,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:04:23,445 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:04:23,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:04:23,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:04:23,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:04:23,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:04:23,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:04:23,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:04:23,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:04:23,447 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:04:23,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:04:23,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:04:23,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:04:23,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:04:23,448 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_3f69d6ec-d846-4208-8092-fa4acf4c7eec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fe0a71bff946f0cc68d0dab1416e0ef991c6bf06ad7cbb70643ca18073a3c7e [2021-11-25 19:04:23,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:04:23,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:04:23,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:04:23,782 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:04:23,783 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:04:23,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/array-fpi/s4if.c [2021-11-25 19:04:23,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/data/b112bcc2e/d577f0ef59c84f9a8af72629405e25e3/FLAG87aae856a [2021-11-25 19:04:24,391 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:04:24,393 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/sv-benchmarks/c/array-fpi/s4if.c [2021-11-25 19:04:24,404 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/data/b112bcc2e/d577f0ef59c84f9a8af72629405e25e3/FLAG87aae856a [2021-11-25 19:04:24,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/data/b112bcc2e/d577f0ef59c84f9a8af72629405e25e3 [2021-11-25 19:04:24,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:04:24,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:04:24,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:04:24,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:04:24,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:04:24,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:04:24" (1/1) ... [2021-11-25 19:04:24,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7781680e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:24, skipping insertion in model container [2021-11-25 19:04:24,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:04:24" (1/1) ... [2021-11-25 19:04:24,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:04:24,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:04:25,015 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_3f69d6ec-d846-4208-8092-fa4acf4c7eec/sv-benchmarks/c/array-fpi/s4if.c[587,600] [2021-11-25 19:04:25,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:04:25,047 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:04:25,064 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_3f69d6ec-d846-4208-8092-fa4acf4c7eec/sv-benchmarks/c/array-fpi/s4if.c[587,600] [2021-11-25 19:04:25,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:04:25,102 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:04:25,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25 WrapperNode [2021-11-25 19:04:25,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:04:25,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:04:25,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:04:25,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:04:25,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (1/1) ... [2021-11-25 19:04:25,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (1/1) ... [2021-11-25 19:04:25,156 INFO L137 Inliner]: procedures = 17, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2021-11-25 19:04:25,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:04:25,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:04:25,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:04:25,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:04:25,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (1/1) ... [2021-11-25 19:04:25,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (1/1) ... [2021-11-25 19:04:25,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (1/1) ... [2021-11-25 19:04:25,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (1/1) ... [2021-11-25 19:04:25,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (1/1) ... [2021-11-25 19:04:25,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (1/1) ... [2021-11-25 19:04:25,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (1/1) ... [2021-11-25 19:04:25,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:04:25,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:04:25,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:04:25,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:04:25,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (1/1) ... [2021-11-25 19:04:25,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:04:25,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:04:25,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:04:25,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:04:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:04:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:04:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:04:25,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:04:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:04:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:04:25,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:04:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:04:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:04:25,370 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:04:25,373 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:04:25,571 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:04:25,617 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:04:25,617 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 19:04:25,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:04:25 BoogieIcfgContainer [2021-11-25 19:04:25,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:04:25,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:04:25,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:04:25,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:04:25,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:04:24" (1/3) ... [2021-11-25 19:04:25,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3593b66e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:04:25, skipping insertion in model container [2021-11-25 19:04:25,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:04:25" (2/3) ... [2021-11-25 19:04:25,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3593b66e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:04:25, skipping insertion in model container [2021-11-25 19:04:25,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:04:25" (3/3) ... [2021-11-25 19:04:25,628 INFO L111 eAbstractionObserver]: Analyzing ICFG s4if.c [2021-11-25 19:04:25,633 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:04:25,633 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:04:25,677 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:04:25,683 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 19:04:25,684 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:04:25,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 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 19:04:25,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 19:04:25,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:25,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 19:04:25,708 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:25,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:25,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1569409207, now seen corresponding path program 1 times [2021-11-25 19:04:25,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:25,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330962498] [2021-11-25 19:04:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:25,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:26,000 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 19:04:26,001 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:26,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330962498] [2021-11-25 19:04:26,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330962498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:04:26,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:04:26,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:04:26,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632318585] [2021-11-25 19:04:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:04:26,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:04:26,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:26,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:04:26,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:04:26,046 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:04:26,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:26,098 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-11-25 19:04:26,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:04:26,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-25 19:04:26,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:26,109 INFO L225 Difference]: With dead ends: 18 [2021-11-25 19:04:26,109 INFO L226 Difference]: Without dead ends: 8 [2021-11-25 19:04:26,113 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 19:04:26,119 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:26,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:04:26,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-25 19:04:26,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-25 19:04:26,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 19:04:26,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-11-25 19:04:26,150 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2021-11-25 19:04:26,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:26,151 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-11-25 19:04:26,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 19:04:26,152 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-25 19:04:26,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 19:04:26,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:26,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:26,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:04:26,155 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:26,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:26,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1413550180, now seen corresponding path program 1 times [2021-11-25 19:04:26,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:26,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660185070] [2021-11-25 19:04:26,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:26,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:26,271 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 19:04:26,271 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:26,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660185070] [2021-11-25 19:04:26,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660185070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:04:26,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:04:26,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:04:26,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132197496] [2021-11-25 19:04:26,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:04:26,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:04:26,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:26,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:04:26,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:04:26,275 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 19:04:26,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:26,295 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2021-11-25 19:04:26,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:04:26,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 19:04:26,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:26,296 INFO L225 Difference]: With dead ends: 12 [2021-11-25 19:04:26,297 INFO L226 Difference]: Without dead ends: 9 [2021-11-25 19:04:26,297 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 19:04:26,299 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:26,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:04:26,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-25 19:04:26,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-25 19:04:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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 19:04:26,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2021-11-25 19:04:26,303 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2021-11-25 19:04:26,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:26,303 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-11-25 19:04:26,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 19:04:26,304 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-25 19:04:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 19:04:26,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:26,305 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:26,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:04:26,305 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:26,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:26,306 INFO L85 PathProgramCache]: Analyzing trace with hash -870274037, now seen corresponding path program 1 times [2021-11-25 19:04:26,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:26,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114996566] [2021-11-25 19:04:26,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:26,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:26,338 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:04:26,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147305425] [2021-11-25 19:04:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:26,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:26,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:04:26,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:04:26,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:04:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:26,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-25 19:04:26,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:04:26,534 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 19:04:26,559 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 19:04:26,603 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 19:04:26,769 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 19:04:26,967 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 19:04:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:27,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:04:27,205 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 19:04:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:27,418 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:27,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114996566] [2021-11-25 19:04:27,419 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:04:27,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147305425] [2021-11-25 19:04:27,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147305425] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:04:27,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [826267665] [2021-11-25 19:04:27,436 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:04:27,437 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:04:27,441 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:04:27,454 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:04:27,455 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:04:27,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:27,606 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 19:04:27,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2021-11-25 19:04:27,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:27,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:27,695 INFO L354 Elim1Store]: treesize reduction 62, result has 35.4 percent of original size [2021-11-25 19:04:27,696 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 55 [2021-11-25 19:04:27,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:27,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:27,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:27,813 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:04:27,814 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 19:04:27,897 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 19:04:27,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:27,958 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 40 treesize of output 39 [2021-11-25 19:04:28,002 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 19:04:28,054 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:28,073 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:04:28,074 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 19:04:28,089 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:28,117 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:04:28,117 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 19:04:28,280 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:28,282 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 19:04:28,419 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:28,420 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 19:04:28,473 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:04:28,844 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '137#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~#sum~0#1.offset|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |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) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:04:28,844 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:04:28,845 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:04:28,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-11-25 19:04:28,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687662841] [2021-11-25 19:04:28,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:04:28,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 19:04:28,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:28,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 19:04:28,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-25 19:04:28,847 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 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 19:04:28,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:28,903 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-25 19:04:28,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:04:28,904 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 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) Word has length 8 [2021-11-25 19:04:28,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:28,905 INFO L225 Difference]: With dead ends: 15 [2021-11-25 19:04:28,905 INFO L226 Difference]: Without dead ends: 12 [2021-11-25 19:04:28,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-25 19:04:28,907 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:28,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2021-11-25 19:04:28,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-25 19:04:28,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-11-25 19:04:28,911 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 19:04:28,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-11-25 19:04:28,911 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2021-11-25 19:04:28,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:28,912 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-11-25 19:04:28,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 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 19:04:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-25 19:04:28,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:04:28,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:28,913 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:28,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:04:29,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:29,134 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:29,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:29,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1208582788, now seen corresponding path program 2 times [2021-11-25 19:04:29,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:29,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638015925] [2021-11-25 19:04:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:29,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:29,153 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:04:29,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286009675] [2021-11-25 19:04:29,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:04:29,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:29,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:04:29,155 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:04:29,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:04:29,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-25 19:04:29,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:04:29,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 19:04:29,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:04:29,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:29,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:04:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:29,400 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:29,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638015925] [2021-11-25 19:04:29,401 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:04:29,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286009675] [2021-11-25 19:04:29,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286009675] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:04:29,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [934029864] [2021-11-25 19:04:29,403 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:04:29,404 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:04:29,404 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:04:29,404 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:04:29,404 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:04:29,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,547 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:04:29,548 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 19:04:29,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2021-11-25 19:04:29,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,594 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 19:04:29,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2021-11-25 19:04:29,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:29,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:29,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:29,898 INFO L354 Elim1Store]: treesize reduction 196, result has 17.6 percent of original size [2021-11-25 19:04:29,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 425 treesize of output 420 [2021-11-25 19:04:30,096 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 19:04:30,157 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:04:30,158 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 19:04:30,223 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:04:30,223 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 19:04:30,311 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:30,312 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 19:04:30,371 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:30,372 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 19:04:30,482 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:04:30,865 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '236#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:04:30,865 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:04:30,866 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:04:30,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-11-25 19:04:30,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779949848] [2021-11-25 19:04:30,866 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:04:30,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-25 19:04:30,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:30,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-25 19:04:30,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-25 19:04:30,868 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:30,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:30,935 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-11-25 19:04:30,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:04:30,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 19:04:30,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:30,936 INFO L225 Difference]: With dead ends: 20 [2021-11-25 19:04:30,936 INFO L226 Difference]: Without dead ends: 14 [2021-11-25 19:04:30,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-11-25 19:04:30,938 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:30,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 10 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:04:30,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-25 19:04:30,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 10. [2021-11-25 19:04:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 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 19:04:30,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-11-25 19:04:30,942 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 9 [2021-11-25 19:04:30,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:30,942 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-11-25 19:04:30,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:30,942 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-11-25 19:04:30,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 19:04:30,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:30,943 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:30,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:04:31,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-25 19:04:31,144 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:31,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:31,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1413604450, now seen corresponding path program 3 times [2021-11-25 19:04:31,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:31,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211332279] [2021-11-25 19:04:31,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:31,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:31,167 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:04:31,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45382855] [2021-11-25 19:04:31,168 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:04:31,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:31,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:04:31,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:04:31,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 19:04:31,252 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:04:31,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:04:31,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 19:04:31,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:04:31,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:31,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:04:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:31,336 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:31,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211332279] [2021-11-25 19:04:31,336 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:04:31,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45382855] [2021-11-25 19:04:31,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45382855] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:04:31,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [612296318] [2021-11-25 19:04:31,339 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:04:31,339 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:04:31,339 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:04:31,340 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:04:31,340 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:04:31,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:31,386 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 19:04:31,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2021-11-25 19:04:31,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:31,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:31,459 INFO L354 Elim1Store]: treesize reduction 62, result has 35.4 percent of original size [2021-11-25 19:04:31,460 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 55 [2021-11-25 19:04:31,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:31,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:31,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:31,568 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:04:31,568 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 19:04:31,599 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 19:04:31,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:31,643 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 40 treesize of output 39 [2021-11-25 19:04:31,671 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 19:04:31,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:31,731 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:04:31,735 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 19:04:31,796 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:31,817 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:04:31,818 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 19:04:31,901 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:31,903 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 19:04:32,042 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:32,043 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 19:04:32,077 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:04:32,387 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '347#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~#sum~0#1.offset|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |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) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:04:32,387 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:04:32,388 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:04:32,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-11-25 19:04:32,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313048870] [2021-11-25 19:04:32,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:04:32,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-25 19:04:32,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:32,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-25 19:04:32,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-25 19:04:32,389 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:32,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:32,485 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2021-11-25 19:04:32,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 19:04:32,485 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 19:04:32,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:32,486 INFO L225 Difference]: With dead ends: 14 [2021-11-25 19:04:32,486 INFO L226 Difference]: Without dead ends: 11 [2021-11-25 19:04:32,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 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 19:04:32,487 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:32,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:04:32,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-25 19:04:32,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-25 19:04:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:32,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2021-11-25 19:04:32,491 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 9 [2021-11-25 19:04:32,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:32,491 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2021-11-25 19:04:32,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:04:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2021-11-25 19:04:32,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 19:04:32,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:32,492 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:32,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:04:32,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:32,714 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:32,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:32,715 INFO L85 PathProgramCache]: Analyzing trace with hash -871956407, now seen corresponding path program 4 times [2021-11-25 19:04:32,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:32,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040374165] [2021-11-25 19:04:32,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:32,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:32,730 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:04:32,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1353890195] [2021-11-25 19:04:32,731 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 19:04:32,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:32,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:04:32,732 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:04:32,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 19:04:32,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:32,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-25 19:04:32,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:04:32,820 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 19:04:32,824 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 19:04:32,853 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 19:04:32,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:32,885 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 19:04:32,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:32,976 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 19:04:33,050 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 19:04:33,120 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 56 treesize of output 32 [2021-11-25 19:04:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:33,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:04:33,237 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 19:04:33,395 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 4)) (.cse4 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.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| .cse6 4))) (.cse2 (not .cse0))) (and (or (forall ((v_ArrVal_163 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_163 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_163) |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 (= .cse1 4) .cse2) (or (= (* 4 c_~N~0) (+ .cse3 .cse4 .cse1)) .cse2) (or .cse0 (forall ((v_ArrVal_163 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_163) |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)) 4)))))))) is different from false [2021-11-25 19:04:33,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-25 19:04:33,752 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:33,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040374165] [2021-11-25 19:04:33,752 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:04:33,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353890195] [2021-11-25 19:04:33,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353890195] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:04:33,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1868462882] [2021-11-25 19:04:33,754 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:04:33,754 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:04:33,754 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:04:33,755 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:04:33,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:04:33,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:33,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:33,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:33,854 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:04:33,854 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 19:04:33,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:33,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:33,871 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 19:04:33,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:33,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2021-11-25 19:04:33,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:33,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:33,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2021-11-25 19:04:34,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:34,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:34,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:34,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:34,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:34,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:34,076 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:34,146 INFO L354 Elim1Store]: treesize reduction 196, result has 17.6 percent of original size [2021-11-25 19:04:34,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 425 treesize of output 420 [2021-11-25 19:04:34,298 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 19:04:34,338 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:04:34,339 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 19:04:34,383 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:04:34,384 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 19:04:34,479 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:34,480 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 19:04:34,627 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:34,627 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 19:04:34,675 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:04:35,159 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '465#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:04:35,159 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:04:35,159 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:04:35,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-11-25 19:04:35,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349176455] [2021-11-25 19:04:35,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:04:35,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 19:04:35,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:35,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 19:04:35,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=260, Unknown=1, NotChecked=32, Total=342 [2021-11-25 19:04:35,161 INFO L87 Difference]: Start difference. First operand 11 states and 12 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 19:04:35,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:35,422 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2021-11-25 19:04:35,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 19:04:35,423 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 19:04:35,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:35,424 INFO L225 Difference]: With dead ends: 18 [2021-11-25 19:04:35,424 INFO L226 Difference]: Without dead ends: 15 [2021-11-25 19:04:35,425 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=323, Unknown=1, NotChecked=36, Total=420 [2021-11-25 19:04:35,425 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:35,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 17 Unchecked, 0.1s Time] [2021-11-25 19:04:35,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-25 19:04:35,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-11-25 19:04:35,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 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 19:04:35,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-11-25 19:04:35,430 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2021-11-25 19:04:35,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:35,431 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-11-25 19:04:35,431 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 19:04:35,431 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-25 19:04:35,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 19:04:35,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:35,432 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:35,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 19:04:35,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 19:04:35,654 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:35,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:35,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1260736258, now seen corresponding path program 5 times [2021-11-25 19:04:35,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:35,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610938658] [2021-11-25 19:04:35,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:35,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:35,669 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:04:35,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137087717] [2021-11-25 19:04:35,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:04:35,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:35,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:04:35,671 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:04:35,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 19:04:35,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 19:04:35,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:04:35,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 19:04:35,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:04:35,819 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:35,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:04:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:35,870 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:35,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610938658] [2021-11-25 19:04:35,870 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:04:35,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137087717] [2021-11-25 19:04:35,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137087717] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:04:35,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [648305018] [2021-11-25 19:04:35,873 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:04:35,873 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:04:35,873 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:04:35,873 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:04:35,874 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:04:35,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:35,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:35,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:35,972 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:04:35,973 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 19:04:35,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:35,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2021-11-25 19:04:36,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,013 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 19:04:36,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 113 [2021-11-25 19:04:36,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,206 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:36,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:36,276 INFO L354 Elim1Store]: treesize reduction 220, result has 11.6 percent of original size [2021-11-25 19:04:36,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 430 treesize of output 419 [2021-11-25 19:04:36,356 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 19:04:36,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:36,402 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 19:04:36,402 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 19:04:36,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:36,455 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 19:04:36,456 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 39 treesize of output 37 [2021-11-25 19:04:36,512 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:36,513 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 19:04:36,556 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:36,556 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 19:04:36,616 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:04:36,894 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '594#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:04:36,894 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:04:36,894 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:04:36,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-11-25 19:04:36,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491411834] [2021-11-25 19:04:36,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:04:36,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 19:04:36,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:36,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 19:04:36,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-11-25 19:04:36,896 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 19:04:36,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:36,991 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2021-11-25 19:04:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-25 19:04:36,992 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Word has length 11 [2021-11-25 19:04:36,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:36,992 INFO L225 Difference]: With dead ends: 23 [2021-11-25 19:04:36,992 INFO L226 Difference]: Without dead ends: 16 [2021-11-25 19:04:36,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2021-11-25 19:04:36,993 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:36,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:04:36,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-25 19:04:36,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2021-11-25 19:04:36,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 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 19:04:36,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2021-11-25 19:04:36,997 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 11 [2021-11-25 19:04:36,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:36,997 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-11-25 19:04:36,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 19:04:36,998 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-11-25 19:04:36,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 19:04:36,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:36,998 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:37,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 19:04:37,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:37,210 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:37,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:37,211 INFO L85 PathProgramCache]: Analyzing trace with hash 973526812, now seen corresponding path program 6 times [2021-11-25 19:04:37,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:37,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589941314] [2021-11-25 19:04:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:37,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:37,226 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:04:37,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145721629] [2021-11-25 19:04:37,227 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:04:37,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:37,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:04:37,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:04:37,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 19:04:37,332 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:04:37,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:04:37,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 19:04:37,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:04:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:37,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:04:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:37,451 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:37,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589941314] [2021-11-25 19:04:37,451 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:04:37,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145721629] [2021-11-25 19:04:37,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145721629] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:04:37,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1604472060] [2021-11-25 19:04:37,454 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:04:37,454 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:04:37,455 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:04:37,455 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:04:37,455 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:04:37,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,531 INFO L354 Elim1Store]: treesize reduction 62, result has 35.4 percent of original size [2021-11-25 19:04:37,532 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 55 [2021-11-25 19:04:37,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,616 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:04:37,616 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 19:04:37,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2021-11-25 19:04:37,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2021-11-25 19:04:37,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:37,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:37,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:37,864 INFO L354 Elim1Store]: treesize reduction 196, result has 17.6 percent of original size [2021-11-25 19:04:37,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 425 treesize of output 420 [2021-11-25 19:04:37,973 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 19:04:38,031 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:38,053 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 19:04:38,053 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 19:04:38,064 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:38,090 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 19:04:38,090 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 19:04:38,192 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:38,193 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 19:04:38,267 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:38,267 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 19:04:38,283 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:04:38,566 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '732#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:04:38,566 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:04:38,566 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:04:38,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-11-25 19:04:38,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664248914] [2021-11-25 19:04:38,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:04:38,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 19:04:38,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:38,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 19:04:38,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-11-25 19:04:38,567 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 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 19:04:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:38,656 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-11-25 19:04:38,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-25 19:04:38,657 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 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) Word has length 11 [2021-11-25 19:04:38,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:38,657 INFO L225 Difference]: With dead ends: 16 [2021-11-25 19:04:38,657 INFO L226 Difference]: Without dead ends: 13 [2021-11-25 19:04:38,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:04:38,659 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:38,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 19:04:38,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-25 19:04:38,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-25 19:04:38,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 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 19:04:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-11-25 19:04:38,663 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2021-11-25 19:04:38,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:38,663 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-11-25 19:04:38,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 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 19:04:38,664 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-11-25 19:04:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 19:04:38,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:38,664 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:38,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 19:04:38,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:38,874 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:38,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:38,875 INFO L85 PathProgramCache]: Analyzing trace with hash 114668683, now seen corresponding path program 7 times [2021-11-25 19:04:38,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:38,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961262099] [2021-11-25 19:04:38,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:38,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:38,890 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:04:38,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339581951] [2021-11-25 19:04:38,890 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 19:04:38,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:38,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:04:38,891 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:04:38,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 19:04:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:04:38,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-25 19:04:38,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:04:38,986 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 19:04:38,990 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 19:04:39,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 19:04:39,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:39,057 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 19:04:39,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:39,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:39,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:39,104 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 19:04:39,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:39,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:39,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:39,209 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 19:04:39,282 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 19:04:39,290 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 19:04:39,345 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 51 treesize of output 41 [2021-11-25 19:04:39,414 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 19:04:39,478 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 19:04:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:39,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:04:39,584 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 19:04:39,699 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5)))) (let ((.cse0 (= .cse1 4))) (and (or .cse0 (and (forall ((v_ArrVal_320 (Array Int Int))) (= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_320) |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_320 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (* 4 c_~N~0))) (forall ((v_ArrVal_320 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_320) |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)) 4)))) (or (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select .cse4 |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 .cse4 |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| .cse5 4)))) (and (= (* 4 c_~N~0) (+ .cse1 .cse2 .cse3)) (= .cse3 4))))) (not .cse0)))))) is different from false [2021-11-25 19:04:55,738 WARN L227 SmtUtils]: Spent 9.98s on a formula simplification. DAG size of input: 74 DAG size of output: 45 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:04:56,156 WARN L838 $PredicateComparison]: unable to prove that (forall ((~N~0 Int)) (or (let ((.cse7 (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)) 4))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse7))) (let ((.cse6 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |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)))) (let ((.cse1 (= .cse3 4)) (.cse0 (select (select (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse4 .cse2))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (and (= .cse0 4) (or (not .cse1) (= .cse2 4)) (or (forall ((v_ArrVal_320 (Array Int Int))) (= (* 4 ~N~0) (+ (select v_ArrVal_320 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (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)) 4)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_320) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))) .cse1) (= (+ .cse3 .cse0 .cse4 .cse2) (* 4 ~N~0))))))))) (<= ~N~0 |c_ULTIMATE.start_main_~i~0#1|) (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) ~N~0))) is different from false [2021-11-25 19:04:57,233 WARN L838 $PredicateComparison]: unable to prove that (forall ((~N~0 Int)) (or (let ((.cse8 (let ((.cse9 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse9) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse9 4) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse9) 4)))) (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse8))) (let ((.cse7 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse3 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse0 (select (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse1 (= .cse3 4)) (.cse4 (select (select (store .cse6 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse0 .cse3 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (and (or (= .cse0 4) (not .cse1)) (or .cse1 (forall ((v_ArrVal_320 (Array Int Int))) (= (* 4 ~N~0) (+ (select v_ArrVal_320 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse2 4) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse2) 4))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_320) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))))) (= (+ .cse0 .cse3 .cse4 .cse5) (* 4 ~N~0)) (= .cse4 4)))))))) (<= ~N~0 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (< (+ 3 |c_ULTIMATE.start_main_~i~0#1|) ~N~0))) is different from false [2021-11-25 19:04:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-11-25 19:04:57,269 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:57,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961262099] [2021-11-25 19:04:57,269 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:04:57,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339581951] [2021-11-25 19:04:57,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339581951] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:04:57,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [548781077] [2021-11-25 19:04:57,271 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:04:57,272 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:04:57,272 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:04:57,272 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:04:57,272 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:04:57,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:57,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:57,386 INFO L354 Elim1Store]: treesize reduction 62, result has 35.4 percent of original size [2021-11-25 19:04:57,387 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 55 [2021-11-25 19:04:57,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:57,450 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 19:04:57,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2021-11-25 19:04:57,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:57,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:57,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:57,572 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:04:57,573 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 19:04:57,604 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 19:04:57,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:57,638 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 40 treesize of output 39 [2021-11-25 19:04:57,663 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 19:04:57,690 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:57,736 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:04:57,736 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 19:04:57,773 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:57,821 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:04:57,821 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 19:04:57,911 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:57,912 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 19:04:58,001 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:04:58,001 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 19:04:58,023 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:04:58,586 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '876#(and (<= 0 ~N~0) (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~a~0#1.offset|) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (<= |#NULL.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= |ULTIMATE.start_main_~#sum~0#1.offset| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~#sum~0#1.offset|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |#NULL.offset|) (<= |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) (<= |ULTIMATE.start_main_~a~0#1.offset| 0))' at error location [2021-11-25 19:04:58,587 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:04:58,587 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:04:58,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-11-25 19:04:58,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56713624] [2021-11-25 19:04:58,587 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:04:58,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-25 19:04:58,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:04:58,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-25 19:04:58,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=325, Unknown=11, NotChecked=114, Total=506 [2021-11-25 19:04:58,589 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 19 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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 19:04:58,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:04:58,837 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-11-25 19:04:58,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 19:04:58,837 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 19:04:58,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:04:58,838 INFO L225 Difference]: With dead ends: 21 [2021-11-25 19:04:58,838 INFO L226 Difference]: Without dead ends: 18 [2021-11-25 19:04:58,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 17.1s TimeCoverageRelationStatistics Valid=56, Invalid=325, Unknown=11, NotChecked=114, Total=506 [2021-11-25 19:04:58,839 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:04:58,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 81 Unchecked, 0.2s Time] [2021-11-25 19:04:58,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-25 19:04:58,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2021-11-25 19:04:58,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 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 19:04:58,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-25 19:04:58,844 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2021-11-25 19:04:58,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:04:58,844 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-25 19:04:58,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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 19:04:58,845 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-25 19:04:58,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 19:04:58,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:04:58,845 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2021-11-25 19:04:58,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 19:04:59,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:59,046 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:04:59,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:04:59,046 INFO L85 PathProgramCache]: Analyzing trace with hash -740129540, now seen corresponding path program 8 times [2021-11-25 19:04:59,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:04:59,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055448352] [2021-11-25 19:04:59,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:04:59,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:04:59,068 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:04:59,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2135809815] [2021-11-25 19:04:59,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:04:59,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:04:59,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:04:59,070 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:04:59,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 19:04:59,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-25 19:04:59,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:04:59,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:04:59,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:04:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:59,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:04:59,431 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:04:59,431 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:04:59,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055448352] [2021-11-25 19:04:59,432 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:04:59,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135809815] [2021-11-25 19:04:59,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135809815] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:04:59,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [9297418] [2021-11-25 19:04:59,434 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:04:59,434 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:04:59,435 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:04:59,435 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:04:59,435 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:04:59,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,501 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 19:04:59,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2021-11-25 19:04:59,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,668 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:04:59,668 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 19:04:59,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,690 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 19:04:59,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2021-11-25 19:04:59,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:04:59,860 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:59,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:04:59,951 INFO L354 Elim1Store]: treesize reduction 196, result has 17.6 percent of original size [2021-11-25 19:04:59,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 425 treesize of output 420 [2021-11-25 19:05:00,038 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 19:05:00,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:00,154 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:05:00,154 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 19:05:00,168 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:00,214 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:05:00,214 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 19:05:00,369 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:05:00,370 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 19:05:00,479 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:05:00,480 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 19:05:00,512 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:05:01,174 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1028#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:05:01,174 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:05:01,174 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:05:01,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2021-11-25 19:05:01,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062304022] [2021-11-25 19:05:01,175 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:05:01,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-25 19:05:01,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:01,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-25 19:05:01,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2021-11-25 19:05:01,176 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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 19:05:01,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:01,383 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2021-11-25 19:05:01,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-25 19:05:01,384 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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 19:05:01,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:01,384 INFO L225 Difference]: With dead ends: 26 [2021-11-25 19:05:01,384 INFO L226 Difference]: Without dead ends: 18 [2021-11-25 19:05:01,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2021-11-25 19:05:01,386 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 15 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:01,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 14 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:05:01,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-25 19:05:01,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2021-11-25 19:05:01,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 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 19:05:01,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-11-25 19:05:01,390 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 13 [2021-11-25 19:05:01,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:01,390 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-11-25 19:05:01,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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 19:05:01,391 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-11-25 19:05:01,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 19:05:01,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:01,391 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:01,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:01,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 19:05:01,602 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:01,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:01,603 INFO L85 PathProgramCache]: Analyzing trace with hash -197451106, now seen corresponding path program 9 times [2021-11-25 19:05:01,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:01,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319719491] [2021-11-25 19:05:01,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:01,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:01,617 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:01,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929145902] [2021-11-25 19:05:01,617 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:05:01,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:01,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:01,618 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:01,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 19:05:01,774 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:05:01,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:05:01,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 19:05:01,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:01,916 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:01,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:05:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:02,004 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:05:02,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319719491] [2021-11-25 19:05:02,004 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:05:02,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929145902] [2021-11-25 19:05:02,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929145902] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:05:02,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [173715478] [2021-11-25 19:05:02,006 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:05:02,006 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:05:02,006 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:05:02,006 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:05:02,007 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:05:02,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,114 INFO L354 Elim1Store]: treesize reduction 62, result has 35.4 percent of original size [2021-11-25 19:05:02,115 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 55 [2021-11-25 19:05:02,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,235 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:05:02,235 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 19:05:02,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2021-11-25 19:05:02,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2021-11-25 19:05:02,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:02,445 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:02,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:05:02,553 INFO L354 Elim1Store]: treesize reduction 196, result has 17.6 percent of original size [2021-11-25 19:05:02,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 425 treesize of output 420 [2021-11-25 19:05:02,698 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 19:05:02,777 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:05:02,777 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 19:05:02,866 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:05:02,867 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 19:05:02,984 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:05:02,984 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 19:05:03,064 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:05:03,064 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 19:05:03,122 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:05:03,634 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1193#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:05:03,634 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:05:03,634 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:05:03,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-11-25 19:05:03,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643295019] [2021-11-25 19:05:03,634 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:05:03,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-25 19:05:03,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:05:03,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-25 19:05:03,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-11-25 19:05:03,636 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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 19:05:03,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:05:03,848 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2021-11-25 19:05:03,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-25 19:05:03,848 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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 19:05:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:05:03,849 INFO L225 Difference]: With dead ends: 18 [2021-11-25 19:05:03,849 INFO L226 Difference]: Without dead ends: 15 [2021-11-25 19:05:03,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2021-11-25 19:05:03,850 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:05:03,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 8 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 19:05:03,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-25 19:05:03,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-25 19:05:03,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 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 19:05:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-11-25 19:05:03,854 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2021-11-25 19:05:03,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:05:03,855 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-11-25 19:05:03,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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 19:05:03,855 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-25 19:05:03,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 19:05:03,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:05:03,856 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2021-11-25 19:05:03,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 19:05:04,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:04,062 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:05:04,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:05:04,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1825908407, now seen corresponding path program 10 times [2021-11-25 19:05:04,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:05:04,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162571996] [2021-11-25 19:05:04,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:05:04,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:05:04,090 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:05:04,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559584941] [2021-11-25 19:05:04,091 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 19:05:04,091 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:05:04,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:05:04,092 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:05:04,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 19:05:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:05:04,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-25 19:05:04,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:05:04,197 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 19:05:04,203 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 19:05:04,229 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 19:05:04,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:04,294 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 31 treesize of output 33 [2021-11-25 19:05:04,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:04,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:04,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:04,347 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 43 treesize of output 48 [2021-11-25 19:05:04,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:04,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:04,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:04,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:04,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:04,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:05:04,431 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 19:05:04,658 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 19:05:04,668 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 19:05:04,704 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 19:05:04,839 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 19:05:04,847 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 19:05:04,881 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 69 treesize of output 55 [2021-11-25 19:05:04,994 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 134 treesize of output 124 [2021-11-25 19:05:05,006 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 47 treesize of output 42 [2021-11-25 19:05:05,048 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 19:05:05,216 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 72 treesize of output 56 [2021-11-25 19:05:05,304 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 100 treesize of output 44 [2021-11-25 19:05:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:05:05,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:05:05,469 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 19:05:05,674 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|)) (.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6)))) (let ((.cse4 (= .cse2 4)) (.cse3 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse6 4))) (.cse1 (not .cse4))) (and (or (= .cse0 4) .cse1) (or (= (* 4 c_~N~0) (+ .cse2 .cse3 .cse0)) .cse1) (or (forall ((v_ArrVal_516 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |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)) 4)) .cse4) (or (forall ((v_ArrVal_516 (Array Int Int))) (= (+ (select v_ArrVal_516 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |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))) (* 4 c_~N~0))) .cse4)))))) is different from false [2021-11-25 19:05:06,126 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 ((.cse4 (forall ((v_ArrVal_516 (Array Int Int))) (= (* 4 c_~N~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |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_516 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (.cse8 (forall ((v_ArrVal_516 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |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))) 4))) (.cse0 (= .cse12 4))) (and (or .cse0 (let ((.cse5 (forall ((v_ArrVal_514 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |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)) 4)))) (and (forall ((v_ArrVal_514 (Array Int Int))) (let ((.cse3 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse3 4)))) (or (= (* 4 c_~N~0) (let ((.cse1 (select v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse1 .cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_514 |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))))) (not (= .cse2 4)))))) (or .cse4 .cse5) (forall ((v_ArrVal_514 (Array Int Int))) (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 4)))) (or (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse7))) (not (= .cse6 4)))))) (or .cse8 .cse5)))) (or (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 (= .cse14 4))) (let ((.cse10 (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))) (.cse11 (not .cse9))) (and (or .cse9 .cse4) (or (= .cse10 4) .cse11) (or (= (* 4 c_~N~0) (+ .cse12 .cse10 .cse13 .cse14)) .cse11) (or .cse8 .cse9))))))) (not .cse0)))))) is different from false [2021-11-25 19:05:09,322 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse11 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (forall ((v_ArrVal_516 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_516 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |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))))))) (.cse5 (forall ((v_ArrVal_516 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |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))) 4))) (.cse6 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse11)))) (let ((.cse13 (= .cse6 4)) (.cse12 (let ((.cse21 (forall ((v_ArrVal_514 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |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))) 4)))) (and (or .cse1 .cse21) (or .cse21 .cse5) (forall ((v_ArrVal_514 (Array Int Int))) (let ((.cse23 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse22 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse23)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_514 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse22))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse23)) 4) (not (= .cse22 4)))))) (forall ((v_ArrVal_514 (Array Int Int))) (let ((.cse26 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_514) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse26)))) (or (= (* 4 c_~N~0) (let ((.cse24 (select v_ArrVal_514 |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_514 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse25))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse26)) .cse24 .cse25))) (not (= .cse25 4)))))))))) (and (or (let ((.cse10 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse8 (select .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse9 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse8))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse11 4)))) (let ((.cse0 (= .cse9 4))) (and (or (not .cse0) (let ((.cse7 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse8 .cse9))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse11)))) (let ((.cse2 (= .cse7 4))) (let ((.cse3 (not .cse2)) (.cse4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse10 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse7 .cse8 .cse9))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse11)))) (and (or .cse1 .cse2) (or .cse3 (= .cse4 4)) (or .cse2 .cse5) (or .cse3 (= (* 4 c_~N~0) (+ .cse6 .cse4 .cse7 .cse8 .cse9)))))))) (or .cse0 .cse12)))))) (not .cse13)) (or .cse13 (and (or (forall ((v_ArrVal_511 (Array Int Int))) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_511) |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_511 (Array Int Int))) (let ((.cse20 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse18 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_511) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse20 4)))) (or (let ((.cse17 (select v_ArrVal_511 |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 v_ArrVal_511 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse18))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse20)))) (let ((.cse14 (= .cse15 4))) (let ((.cse16 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_511 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse15 .cse17 .cse18))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse20))) (.cse19 (not .cse14))) (and (or .cse14 (forall ((v_ArrVal_516 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |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))) 4))) (or (= (* 4 c_~N~0) (+ .cse15 .cse16 .cse17 .cse18)) .cse19) (or (forall ((v_ArrVal_516 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_516 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_516) |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)))))) .cse14) (or (= .cse16 4) .cse19)))))) (not (= 4 .cse18)))))))))))) is different from false [2021-11-25 19:05:56,830 WARN L227 SmtUtils]: Spent 46.30s on a formula simplification. DAG size of input: 120 DAG size of output: 44 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-25 19:06:01,078 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2021-11-25 19:06:01,078 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:06:01,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162571996] [2021-11-25 19:06:01,078 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:06:01,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559584941] [2021-11-25 19:06:01,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559584941] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:06:01,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1013046031] [2021-11-25 19:06:01,080 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:06:01,081 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:06:01,081 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:06:01,081 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:06:01,081 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:06:01,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,241 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-11-25 19:06:01,660 INFO L354 Elim1Store]: treesize reduction 62, result has 35.4 percent of original size [2021-11-25 19:06:01,660 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 55 [2021-11-25 19:06:01,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:01,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:02,303 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:06:02,304 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 19:06:02,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:02,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2021-11-25 19:06:02,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:02,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:02,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2021-11-25 19:06:02,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:02,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:02,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:02,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:02,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:02,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:02,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:03,259 INFO L354 Elim1Store]: treesize reduction 196, result has 17.6 percent of original size [2021-11-25 19:06:03,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 425 treesize of output 420 [2021-11-25 19:06:03,386 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 19:06:03,644 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:06:03,645 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 19:06:03,937 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:06:03,937 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 19:06:04,383 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:06:04,383 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 19:06:04,806 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:06:04,806 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 19:06:04,861 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:06:09,229 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1363#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:06:09,230 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:06:09,230 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:06:09,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-11-25 19:06:09,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156556645] [2021-11-25 19:06:09,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:06:09,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-25 19:06:09,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:06:09,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-25 19:06:09,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=490, Unknown=3, NotChecked=138, Total=702 [2021-11-25 19:06:09,232 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 23 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 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 19:06:12,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:06:12,558 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2021-11-25 19:06:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 19:06:12,559 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 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 19:06:12,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:06:12,559 INFO L225 Difference]: With dead ends: 24 [2021-11-25 19:06:12,559 INFO L226 Difference]: Without dead ends: 21 [2021-11-25 19:06:12,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 9 SyntacticMatches, 9 SemanticMatches, 27 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 59.1s TimeCoverageRelationStatistics Valid=82, Invalid=577, Unknown=3, NotChecked=150, Total=812 [2021-11-25 19:06:12,560 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 56 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:06:12,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 150 Invalid, 0 Unknown, 56 Unchecked, 1.5s Time] [2021-11-25 19:06:12,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-25 19:06:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2021-11-25 19:06:12,567 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 19:06:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-11-25 19:06:12,567 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2021-11-25 19:06:12,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:06:12,567 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-11-25 19:06:12,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 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 19:06:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-11-25 19:06:12,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 19:06:12,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:06:12,568 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2021-11-25 19:06:12,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-25 19:06:12,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:06:12,769 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:06:12,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:06:12,769 INFO L85 PathProgramCache]: Analyzing trace with hash -768477186, now seen corresponding path program 11 times [2021-11-25 19:06:12,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:06:12,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398584125] [2021-11-25 19:06:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:06:12,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:06:12,792 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:06:12,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478042893] [2021-11-25 19:06:12,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:06:12,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:06:12,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:06:12,794 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:06:12,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-25 19:06:12,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-25 19:06:12,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:06:12,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 19:06:12,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:06:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:06:14,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:06:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:06:14,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:06:14,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398584125] [2021-11-25 19:06:14,722 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:06:14,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478042893] [2021-11-25 19:06:14,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478042893] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:06:14,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [144310439] [2021-11-25 19:06:14,724 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:06:14,724 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:06:14,724 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:06:14,725 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:06:14,725 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:06:14,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,910 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 19:06:14,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2021-11-25 19:06:14,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:14,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:15,567 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:06:15,567 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 19:06:15,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:15,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:15,622 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 19:06:15,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:15,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:15,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2021-11-25 19:06:15,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:15,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:15,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:15,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:15,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:15,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:15,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:16,345 INFO L354 Elim1Store]: treesize reduction 196, result has 17.6 percent of original size [2021-11-25 19:06:16,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 425 treesize of output 420 [2021-11-25 19:06:16,497 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 19:06:16,535 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:16,766 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 19:06:16,766 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 19:06:16,801 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:17,030 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 19:06:17,030 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 19:06:17,454 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:06:17,455 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 19:06:17,866 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:06:17,866 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 19:06:17,946 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:06:20,001 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1544#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:06:20,001 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:06:20,001 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:06:20,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-11-25 19:06:20,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549157372] [2021-11-25 19:06:20,002 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:06:20,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-25 19:06:20,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:06:20,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-25 19:06:20,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2021-11-25 19:06:20,004 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 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 19:06:21,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:06:21,157 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-11-25 19:06:21,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 19:06:21,158 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 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 15 [2021-11-25 19:06:21,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:06:21,158 INFO L225 Difference]: With dead ends: 29 [2021-11-25 19:06:21,159 INFO L226 Difference]: Without dead ends: 20 [2021-11-25 19:06:21,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2021-11-25 19:06:21,161 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:06:21,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 12 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 19:06:21,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-25 19:06:21,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2021-11-25 19:06:21,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 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 19:06:21,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-11-25 19:06:21,167 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 15 [2021-11-25 19:06:21,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:06:21,167 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-11-25 19:06:21,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 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 19:06:21,168 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-25 19:06:21,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 19:06:21,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:06:21,168 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2021-11-25 19:06:21,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-25 19:06:21,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-25 19:06:21,369 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:06:21,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:06:21,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1125314916, now seen corresponding path program 12 times [2021-11-25 19:06:21,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:06:21,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416906556] [2021-11-25 19:06:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:06:21,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:06:21,382 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:06:21,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803647173] [2021-11-25 19:06:21,382 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:06:21,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:06:21,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:06:21,394 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:06:21,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-25 19:06:21,565 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:06:21,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:06:21,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 19:06:21,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:06:22,737 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:06:22,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:06:23,405 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:06:23,406 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:06:23,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416906556] [2021-11-25 19:06:23,406 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:06:23,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803647173] [2021-11-25 19:06:23,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803647173] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:06:23,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1970296152] [2021-11-25 19:06:23,409 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:06:23,409 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:06:23,410 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:06:23,410 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:06:23,410 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:06:23,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:23,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:23,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,094 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:06:24,095 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 19:06:24,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,148 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 19:06:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2021-11-25 19:06:24,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 113 [2021-11-25 19:06:24,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,487 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:06:24,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:24,887 INFO L354 Elim1Store]: treesize reduction 220, result has 11.6 percent of original size [2021-11-25 19:06:24,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 32 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 23 case distinctions, treesize of input 430 treesize of output 419 [2021-11-25 19:06:24,972 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 19:06:25,241 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:06:25,241 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 19:06:25,522 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:06:25,522 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 19:06:25,933 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:06:25,933 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 19:06:26,334 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:06:26,335 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 19:06:26,443 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:06:29,237 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1736#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:06:29,237 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:06:29,237 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:06:29,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2021-11-25 19:06:29,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239534439] [2021-11-25 19:06:29,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:06:29,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-25 19:06:29,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:06:29,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-25 19:06:29,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2021-11-25 19:06:29,239 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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 19:06:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:06:30,564 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2021-11-25 19:06:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 19:06:30,565 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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 15 [2021-11-25 19:06:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:06:30,566 INFO L225 Difference]: With dead ends: 20 [2021-11-25 19:06:30,566 INFO L226 Difference]: Without dead ends: 17 [2021-11-25 19:06:30,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=175, Invalid=637, Unknown=0, NotChecked=0, Total=812 [2021-11-25 19:06:30,568 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:06:30,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 19:06:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-25 19:06:30,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-25 19:06:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 states have internal predecessors, (18), 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 19:06:30,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-11-25 19:06:30,575 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2021-11-25 19:06:30,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:06:30,576 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-11-25 19:06:30,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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 19:06:30,576 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-11-25 19:06:30,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 19:06:30,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:06:30,577 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1] [2021-11-25 19:06:30,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-25 19:06:30,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-25 19:06:30,782 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:06:30,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:06:30,783 INFO L85 PathProgramCache]: Analyzing trace with hash -524915445, now seen corresponding path program 13 times [2021-11-25 19:06:30,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:06:30,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799472945] [2021-11-25 19:06:30,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:06:30,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:06:30,796 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:06:30,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1595537121] [2021-11-25 19:06:30,797 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 19:06:30,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:06:30,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:06:30,804 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:06:30,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-25 19:06:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:06:30,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 78 conjunts are in the unsatisfiable core [2021-11-25 19:06:30,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:06:30,943 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 19:06:30,972 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 19:06:31,105 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 19:06:31,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:31,347 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 19:06:31,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:31,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:31,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:31,577 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 19:06:31,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:31,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:31,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:31,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:31,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:31,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:31,971 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 49 treesize of output 57 [2021-11-25 19:06:32,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:32,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:32,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:32,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:32,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:32,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:32,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:32,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:32,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:32,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:32,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-25 19:06:33,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2021-11-25 19:06:33,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:06:33,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 71 [2021-11-25 19:06:34,377 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 131 treesize of output 121 [2021-11-25 19:06:34,398 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 35 treesize of output 30 [2021-11-25 19:06:34,516 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 79 treesize of output 63 [2021-11-25 19:06:35,117 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 141 treesize of output 129 [2021-11-25 19:06:35,138 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 45 treesize of output 40 [2021-11-25 19:06:35,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 71 [2021-11-25 19:06:35,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2021-11-25 19:06:36,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 46 [2021-11-25 19:06:36,379 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 19:06:36,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:06:36,952 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 19:06:37,590 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse5)))) (let ((.cse0 (= .cse1 4))) (and (or (and (forall ((v_ArrVal_754 (Array Int Int))) (= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_754) |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_754 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (* 4 c_~N~0))) (forall ((v_ArrVal_754 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_754) |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)) 4))) .cse0) (or (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse2 (select .cse4 |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 .cse4 |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| .cse5 4)))) (and (= (* 4 c_~N~0) (+ .cse1 .cse2 .cse3)) (= .cse3 4))))) (not .cse0)))))) is different from false [2021-11-25 19:07:06,019 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2021-11-25 19:07:06,020 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:07:06,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799472945] [2021-11-25 19:07:06,020 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:07:06,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595537121] [2021-11-25 19:07:06,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595537121] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:07:06,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1028158245] [2021-11-25 19:07:06,021 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:07:06,022 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:07:06,022 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:07:06,022 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:07:06,022 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:07:06,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:06,206 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 19:07:06,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 102 [2021-11-25 19:07:06,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:06,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:06,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:06,859 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:07:06,859 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 19:07:06,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:06,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:06,913 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 19:07:06,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:06,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:06,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2021-11-25 19:07:07,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:07,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:07,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:07,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:07,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:07,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:07,191 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:07,638 INFO L354 Elim1Store]: treesize reduction 196, result has 17.6 percent of original size [2021-11-25 19:07:07,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 425 treesize of output 420 [2021-11-25 19:07:07,762 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 19:07:08,023 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:07:08,024 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 19:07:08,290 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:07:08,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 19:07:08,727 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:07:08,727 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 19:07:09,155 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:07:09,155 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 19:07:09,251 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:07:15,106 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1932#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:07:15,106 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:07:15,106 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:07:15,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2021-11-25 19:07:15,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211179329] [2021-11-25 19:07:15,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:07:15,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-25 19:07:15,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:07:15,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-25 19:07:15,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=776, Unknown=13, NotChecked=56, Total=930 [2021-11-25 19:07:15,109 INFO L87 Difference]: Start difference. First operand 17 states and 18 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 19:07:23,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:07:23,360 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2021-11-25 19:07:23,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:07:23,361 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 19:07:23,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:07:23,362 INFO L225 Difference]: With dead ends: 27 [2021-11-25 19:07:23,362 INFO L226 Difference]: Without dead ends: 24 [2021-11-25 19:07:23,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 10 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 35.4s TimeCoverageRelationStatistics Valid=96, Invalid=887, Unknown=13, NotChecked=60, Total=1056 [2021-11-25 19:07:23,363 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:07:23,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 295 Invalid, 0 Unknown, 38 Unchecked, 4.2s Time] [2021-11-25 19:07:23,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-25 19:07:23,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2021-11-25 19:07:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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 19:07:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-25 19:07:23,371 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2021-11-25 19:07:23,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:07:23,371 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-25 19:07:23,371 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 19:07:23,372 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-25 19:07:23,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 19:07:23,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:07:23,372 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1] [2021-11-25 19:07:23,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-25 19:07:23,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:07:23,590 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:07:23,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:07:23,590 INFO L85 PathProgramCache]: Analyzing trace with hash 907598972, now seen corresponding path program 14 times [2021-11-25 19:07:23,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:07:23,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644105411] [2021-11-25 19:07:23,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:07:23,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:07:23,604 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:07:23,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [820844683] [2021-11-25 19:07:23,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-25 19:07:23,604 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:07:23,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:07:23,607 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:07:23,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-25 19:07:23,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-25 19:07:23,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:07:23,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 19:07:23,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:07:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:07:25,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:07:26,060 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:07:26,060 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:07:26,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644105411] [2021-11-25 19:07:26,060 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:07:26,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820844683] [2021-11-25 19:07:26,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820844683] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:07:26,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1767289640] [2021-11-25 19:07:26,062 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:07:26,062 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:07:26,062 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:07:26,062 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:07:26,063 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:07:26,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:26,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:26,736 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:07:26,736 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 19:07:26,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:26,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:26,787 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 19:07:26,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:26,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2021-11-25 19:07:26,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:26,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:26,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2021-11-25 19:07:27,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:27,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:27,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:27,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:27,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:27,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:27,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:27,477 INFO L354 Elim1Store]: treesize reduction 196, result has 17.6 percent of original size [2021-11-25 19:07:27,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 425 treesize of output 420 [2021-11-25 19:07:27,573 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 19:07:27,640 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:27,863 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 19:07:27,863 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 19:07:27,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:28,187 INFO L354 Elim1Store]: treesize reduction 19, result has 56.8 percent of original size [2021-11-25 19:07:28,188 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 19:07:28,678 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:07:28,678 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 19:07:29,101 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:07:29,102 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 19:07:29,144 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:07:32,866 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2136#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:07:32,866 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:07:32,866 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:07:32,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2021-11-25 19:07:32,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346589308] [2021-11-25 19:07:32,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:07:32,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-25 19:07:32,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:07:32,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-25 19:07:32,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2021-11-25 19:07:32,868 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 20 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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 19:07:34,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:07:34,297 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2021-11-25 19:07:34,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-25 19:07:34,298 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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 19:07:34,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:07:34,298 INFO L225 Difference]: With dead ends: 32 [2021-11-25 19:07:34,298 INFO L226 Difference]: Without dead ends: 22 [2021-11-25 19:07:34,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 20 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=211, Invalid=719, Unknown=0, NotChecked=0, Total=930 [2021-11-25 19:07:34,300 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:07:34,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 12 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 19:07:34,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-25 19:07:34,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2021-11-25 19:07:34,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 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 19:07:34,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2021-11-25 19:07:34,318 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 17 [2021-11-25 19:07:34,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:07:34,319 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2021-11-25 19:07:34,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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 19:07:34,319 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-11-25 19:07:34,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 19:07:34,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:07:34,320 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1] [2021-11-25 19:07:34,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-25 19:07:34,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-25 19:07:34,524 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:07:34,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:07:34,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1564436066, now seen corresponding path program 15 times [2021-11-25 19:07:34,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:07:34,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980275994] [2021-11-25 19:07:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:07:34,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:07:34,554 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:07:34,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853404767] [2021-11-25 19:07:34,557 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-25 19:07:34,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:07:34,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:07:34,558 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:07:34,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-25 19:07:34,806 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-25 19:07:34,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-25 19:07:34,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-25 19:07:34,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:07:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:07:36,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:07:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:07:37,062 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:07:37,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980275994] [2021-11-25 19:07:37,062 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:07:37,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853404767] [2021-11-25 19:07:37,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853404767] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:07:37,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1705886525] [2021-11-25 19:07:37,064 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-25 19:07:37,064 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:07:37,064 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:07:37,064 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:07:37,064 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:07:37,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:37,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:37,635 INFO L354 Elim1Store]: treesize reduction 62, result has 35.4 percent of original size [2021-11-25 19:07:37,635 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 55 [2021-11-25 19:07:37,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:37,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:37,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:38,287 INFO L354 Elim1Store]: treesize reduction 94, result has 27.7 percent of original size [2021-11-25 19:07:38,287 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 19:07:38,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:38,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 98 [2021-11-25 19:07:38,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:38,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:38,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 108 [2021-11-25 19:07:38,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:38,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:38,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:38,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:38,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:38,598 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:38,599 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:07:39,021 INFO L354 Elim1Store]: treesize reduction 196, result has 17.6 percent of original size [2021-11-25 19:07:39,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 26 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 425 treesize of output 420 [2021-11-25 19:07:39,174 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 19:07:39,469 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:07:39,469 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 19:07:39,769 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-25 19:07:39,769 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 19:07:40,181 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:07:40,182 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 19:07:40,577 INFO L354 Elim1Store]: treesize reduction 26, result has 63.4 percent of original size [2021-11-25 19:07:40,578 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 19:07:40,681 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 19:07:43,647 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2355#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= (select (select |#memory_int| |ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset|) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| (ite (= (* 4 ~N~0) |ULTIMATE.start_main_#t~mem13#1|) 1 0)) (= |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) (<= |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 19:07:43,647 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-25 19:07:43,647 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-25 19:07:43,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 21 [2021-11-25 19:07:43,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165914590] [2021-11-25 19:07:43,648 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-25 19:07:43,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-25 19:07:43,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:07:43,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-25 19:07:43,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2021-11-25 19:07:43,649 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 21 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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 19:07:45,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:07:45,658 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-11-25 19:07:45,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 19:07:45,659 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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 19:07:45,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:07:45,661 INFO L225 Difference]: With dead ends: 22 [2021-11-25 19:07:45,661 INFO L226 Difference]: Without dead ends: 19 [2021-11-25 19:07:45,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 20 SyntacticMatches, 6 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=226, Invalid=830, Unknown=0, NotChecked=0, Total=1056 [2021-11-25 19:07:45,662 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:07:45,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 16 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-25 19:07:45,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-25 19:07:45,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-25 19:07:45,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 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 19:07:45,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2021-11-25 19:07:45,670 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 17 [2021-11-25 19:07:45,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:07:45,670 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2021-11-25 19:07:45,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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 19:07:45,671 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-11-25 19:07:45,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 19:07:45,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:07:45,672 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1] [2021-11-25 19:07:45,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-25 19:07:45,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-25 19:07:45,886 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:07:45,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:07:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1252769207, now seen corresponding path program 16 times [2021-11-25 19:07:45,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:07:45,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104966473] [2021-11-25 19:07:45,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:07:45,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:07:45,901 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:07:45,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1082719817] [2021-11-25 19:07:45,901 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-25 19:07:45,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:07:45,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:07:45,907 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:07:45,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f69d6ec-d846-4208-8092-fa4acf4c7eec/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-25 19:07:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:07:45,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 90 conjunts are in the unsatisfiable core [2021-11-25 19:07:46,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:07:46,050 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 19:07:46,081 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 19:07:46,239 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 19:07:46,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:46,444 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 19:07:46,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:46,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:46,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:46,709 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 19:07:47,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,076 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 49 treesize of output 57 [2021-11-25 19:07:47,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 72 [2021-11-25 19:07:47,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:47,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:48,080 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-11-25 19:07:48,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 78 [2021-11-25 19:07:49,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,189 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-11-25 19:07:49,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 83 [2021-11-25 19:07:49,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:49,739 INFO L244 Elim1Store]: Index analysis took 106 ms [2021-11-25 19:07:49,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 83 [2021-11-25 19:07:50,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:50,444 INFO L244 Elim1Store]: Index analysis took 142 ms [2021-11-25 19:07:50,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 85 [2021-11-25 19:07:51,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:07:51,249 INFO L244 Elim1Store]: Index analysis took 105 ms [2021-11-25 19:07:51,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 85 [2021-11-25 19:07:51,821 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 153 treesize of output 137 [2021-11-25 19:07:51,842 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 55 treesize of output 48 [2021-11-25 19:07:51,958 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 109 treesize of output 85 [2021-11-25 19:07:52,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 77 [2021-11-25 19:07:52,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 47 [2021-11-25 19:07:53,204 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:07:53,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:07:53,808 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 19:07:54,717 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 4)) (.cse4 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.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| .cse6 4))) (.cse2 (not .cse0))) (and (or .cse0 (forall ((v_ArrVal_1033 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |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)) 4))) (or (= .cse1 4) .cse2) (or (= (* 4 c_~N~0) (+ .cse3 .cse4 .cse1)) .cse2) (or (forall ((v_ArrVal_1033 (Array Int Int))) (= (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |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))) (* 4 c_~N~0))) .cse0)))))) is different from false [2021-11-25 19:07:57,564 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse16 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse11 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse16)))) (let ((.cse4 (forall ((v_ArrVal_1033 (Array Int Int))) (= (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |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)))) (* 4 c_~N~0)))) (.cse3 (forall ((v_ArrVal_1033 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |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))) 4))) (.cse8 (= .cse11 4))) (and (or (let ((.cse2 (forall ((v_ArrVal_1029 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |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)) 4)))) (and (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse1 4)))) (or (not (= .cse0 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse0))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse1)) 4))))) (or .cse2 .cse3) (or .cse4 .cse2) (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse7 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse7 4)))) (or (= (* 4 c_~N~0) (let ((.cse5 (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse5 .cse6))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse7)) .cse6))) (not (= .cse6 4)))))))) .cse8) (or (let ((.cse15 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse12 (select .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse13 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse11 .cse12))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse16 4)))) (let ((.cse14 (= .cse13 4))) (let ((.cse9 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse11 .cse12 .cse13))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse16))) (.cse10 (not .cse14))) (and (or (= .cse9 4) .cse10) (or (= (* 4 c_~N~0) (+ .cse11 .cse9 .cse12 .cse13)) .cse10) (or .cse4 .cse14) (or .cse14 .cse3))))))) (not .cse8)))))) is different from false [2021-11-25 19:08:05,373 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse23 (* |c_ULTIMATE.start_main_~i~0#1| 4)) (.cse22 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse20 (select .cse22 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse18 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse23)))) (let ((.cse1 (= .cse18 4)) (.cse21 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse22 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse20))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse23 4)))) (let ((.cse0 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse29 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse28 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse29)))) (or (not (= .cse28 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse29)) 4)))))) (.cse10 (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |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))))))) (.cse11 (forall ((v_ArrVal_1029 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |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))) 4))) (.cse15 (forall ((v_ArrVal_1033 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |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))) 4))) (.cse2 (forall ((v_ArrVal_1028 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |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)) 4))) (.cse24 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse27 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse27)))) (or (not (= .cse25 4)) (= (* 4 c_~N~0) (let ((.cse26 (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse26 .cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse26 .cse25))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse27)))))))))) (.cse12 (= .cse21 4)) (.cse13 (not .cse1))) (and (or .cse0 .cse1 .cse2) (or .cse1 (forall ((v_ArrVal_1028 (Array Int Int))) (let ((.cse9 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse9 4)))) (or (not (= .cse3 4)) (let ((.cse6 (select v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse7 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |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| 8 .cse9)))) (let ((.cse8 (= 4 .cse7))) (let ((.cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse3 .cse6 .cse7))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse9))) (.cse4 (not .cse8))) (and (or .cse4 (= (+ .cse3 .cse5 .cse6 .cse7) (* 4 c_~N~0))) (or .cse8 (forall ((v_ArrVal_1033 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |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))) 4))) (or (= .cse5 4) .cse4) (or (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |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)))))) .cse8))))))))))) (or .cse10 .cse1 .cse2 .cse11) (or .cse10 .cse12 .cse13 .cse11) (or .cse0 .cse12 .cse13) (or .cse13 (let ((.cse19 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse22 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse20 .cse21))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse23)))) (let ((.cse14 (= .cse19 4))) (let ((.cse16 (not .cse14)) (.cse17 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse22 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse19 .cse20 .cse21))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse23)))) (and (or .cse14 .cse15) (or .cse10 .cse14) (or .cse16 (= .cse17 4)) (or .cse16 (= (* 4 c_~N~0) (+ .cse18 .cse17 .cse19 .cse20 .cse21))))))) (not .cse12)) (or .cse1 .cse2 .cse11 .cse15) (or .cse12 .cse13 .cse11 .cse15) (or .cse24 .cse1 .cse2) (or .cse24 .cse12 .cse13)))))) is different from false [2021-11-25 19:08:22,804 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse42 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (.cse43 (* |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| .cse43))) (.cse26 (select .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse27 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse26))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse43 4)))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse43)))) (let ((.cse24 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse25 .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse43)))) (let ((.cse1 (= .cse23 4)) (.cse14 (= .cse27 4)) (.cse19 (= .cse25 4)) (.cse12 (= .cse24 4))) (let ((.cse3 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse53 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse51 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse53)))) (or (= (* 4 c_~N~0) (let ((.cse52 (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse51 .cse52 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse52))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse53))))) (not (= .cse51 4))))))) (.cse21 (forall ((v_ArrVal_1028 (Array Int Int))) (let ((.cse50 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse44 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse50)))) (or (not (= .cse44 4)) (let ((.cse49 (select v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse48 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse50)))) (let ((.cse47 (= .cse48 4))) (let ((.cse46 (not .cse47)) (.cse45 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse48 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse50)))) (and (or (= .cse45 4) .cse46) (or .cse47 (forall ((v_ArrVal_1033 (Array Int Int))) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 (* |c_ULTIMATE.start_main_~i~0#1| 4)))))) (or .cse46 (= (+ .cse44 .cse48 .cse45 .cse49) (* 4 c_~N~0))) (or .cse47 (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 (* |c_ULTIMATE.start_main_~i~0#1| 4))))))))))))))))) (.cse22 (not .cse12)) (.cse10 (not .cse19)) (.cse28 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse24 .cse25 .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse43))) (.cse20 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse41 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse39 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse38 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse41 4)))) (let ((.cse40 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse41)))) (or (not (= 4 .cse38)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse39 .cse40 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse41)) 4) (not (= 4 .cse40)))))))) (.cse16 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse37 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse36 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse37 4)))) (or (not (= 4 .cse36)) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse36))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse37)))))))) (.cse15 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse35 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse34 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse35)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse35)) 4) (not (= .cse34 4))))))) (.cse18 (forall ((v_ArrVal_1033 (Array Int Int))) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 (* |c_ULTIMATE.start_main_~i~0#1| 4)))))) (.cse13 (not .cse14)) (.cse11 (not .cse1)) (.cse0 (forall ((v_ArrVal_1028 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |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))) 4))) (.cse9 (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 (* |c_ULTIMATE.start_main_~i~0#1| 4))))))) (.cse2 (forall ((v_ArrVal_1024 (Array Int Int))) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |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))))) (.cse17 (forall ((v_ArrVal_1029 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |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))) 4)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse8 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse6 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse8 4)))) (let ((.cse7 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse8)))) (let ((.cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse6 .cse7 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse8)))) (or (not (= 4 .cse4)) (not (= .cse5 4)) (= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse5 .cse6 .cse7 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse8)) .cse5 .cse6 .cse7 .cse4) (* 4 c_~N~0)) (not (= 4 .cse7))))))))) (or .cse9 .cse10 .cse11 .cse12 .cse13) (or .cse0 .cse14 .cse11 .cse3) (or .cse15 .cse0 .cse1 .cse2) (or .cse16 .cse1 .cse17 .cse18) (or .cse15 .cse0 .cse14 .cse11) (or .cse0 .cse1 .cse2 .cse17 .cse18) (or .cse10 .cse11 .cse18 .cse12 .cse13) (or .cse9 .cse19 .cse17 .cse11 .cse13) (or .cse20 .cse9 .cse1) (or .cse14 .cse11 .cse21) (or .cse16 .cse1 .cse3) (or .cse19 .cse11 .cse13 .cse3) (or .cse1 .cse2 .cse21) (or .cse22 .cse10 .cse11 (= (* 4 c_~N~0) (+ .cse23 .cse24 .cse25 .cse26 .cse27 .cse28)) .cse13) (or .cse16 .cse9 .cse1 .cse17) (or .cse22 .cse10 .cse11 (= 4 .cse28) .cse13) (or .cse20 .cse1 .cse18) (or .cse15 .cse19 .cse11 .cse13) (or .cse16 .cse15 .cse1) (or .cse0 .cse17 .cse14 .cse11 .cse18) (or .cse1 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse33 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse31 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse29 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse33 4)))) (let ((.cse32 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse31 .cse29))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse33)))) (let ((.cse30 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse31 .cse32 .cse29))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse33)))) (or (not (= 4 .cse29)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse30 .cse31 .cse32 .cse29))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse33)) 4) (not (= .cse30 4)) (not (= 4 .cse32))))))))) (or .cse19 .cse17 .cse11 .cse18 .cse13) (or .cse0 .cse9 .cse17 .cse14 .cse11) (or .cse0 .cse9 .cse1 .cse2 .cse17))))))))) is different from false [2021-11-25 19:08:44,245 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse28 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse18 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse28)))) (let ((.cse29 (= .cse18 4)) (.cse1 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse84 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse80 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse81 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse84)))) (let ((.cse82 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse80 .cse81))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse84)))) (let ((.cse83 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse80 .cse81 .cse82))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse84)))) (or (= (* 4 c_~N~0) (+ .cse80 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse80 .cse81 .cse82 .cse83))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse84)) .cse81 .cse82 .cse83)) (not (= .cse81 4)) (not (= 4 .cse83)) (not (= .cse82 4))))))))) (.cse9 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse79 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse77 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse76 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse79)))) (let ((.cse78 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse77 .cse76))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse79)))) (or (not (= .cse76 4)) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse77 .cse76 .cse78))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse79))) (not (= .cse78 4)))))))) (.cse16 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse75 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse74 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse75)))) (or (= (let ((.cse73 (select v_ArrVal_1029 |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_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse75)) .cse73 .cse74)) (* 4 c_~N~0)) (not (= .cse74 4))))))) (.cse3 (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 (* |c_ULTIMATE.start_main_~i~0#1| 4))))))) (.cse10 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse72 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse71 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse72)))) (or (not (= .cse71 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse71))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse72)) 4)))))) (.cse25 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse70 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse69 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse70)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse69))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse70)) 4) (not (= .cse69 4))))))) (.cse6 (forall ((v_ArrVal_1028 (Array Int Int))) (let ((.cse68 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse62 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse68)))) (or (not (= .cse62 4)) (let ((.cse67 (select v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse66 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse62 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse68)))) (let ((.cse65 (= .cse66 4))) (let ((.cse63 (not .cse65)) (.cse64 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse62 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse68)))) (and (or .cse63 (= .cse64 4)) (or (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 (* |c_ULTIMATE.start_main_~i~0#1| 4)))))) .cse65) (or .cse65 (forall ((v_ArrVal_1033 (Array Int Int))) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 (* |c_ULTIMATE.start_main_~i~0#1| 4)))))) (or .cse63 (= (* 4 c_~N~0) (+ .cse66 .cse62 .cse67 .cse64))))))))))))) (.cse26 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse61 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse60 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse57 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse61)))) (let ((.cse59 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse60 .cse57))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse61)))) (let ((.cse58 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse60 .cse57 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse61)))) (or (not (= .cse57 4)) (not (= 4 .cse58)) (not (= .cse59 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse60 .cse57 .cse59 .cse58))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse61)) 4)))))))) (.cse2 (forall ((v_ArrVal_1029 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 (* |c_ULTIMATE.start_main_~i~0#1| 4))) 4))) (.cse4 (forall ((v_ArrVal_1028 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |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))) 4))) (.cse5 (forall ((v_ArrVal_1024 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |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))) 4))) (.cse11 (forall ((v_ArrVal_1033 (Array Int Int))) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 (* |c_ULTIMATE.start_main_~i~0#1| 4))))))) (and (or (let ((.cse27 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse22 (select .cse27 |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 .cse27 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse22))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse28 4)))) (let ((.cse21 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse28)))) (let ((.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| (+ .cse18 .cse21 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse28)))) (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| (+ .cse18 .cse20 .cse21 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse28)))) (let ((.cse0 (= .cse23 4)) (.cse7 (= .cse21 4)) (.cse13 (= .cse20 4)) (.cse15 (= 4 .cse24))) (let ((.cse19 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse20 .cse21 .cse22 .cse23 .cse24))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse28))) (.cse17 (not .cse15)) (.cse14 (not .cse13)) (.cse12 (not .cse7)) (.cse8 (not .cse0))) (and (or .cse0 .cse1) (or .cse2 .cse3 .cse4 .cse0 .cse5) (or .cse6 .cse7 .cse8) (or .cse9 .cse3 .cse0) (or .cse2 .cse0 .cse10 .cse11) (or .cse2 .cse3 .cse12 .cse13 .cse8) (or .cse14 .cse3 .cse12 .cse15 .cse8) (or .cse2 .cse7 .cse4 .cse8 .cse11) (or .cse4 .cse0 .cse5 .cse16) (or .cse0 .cse10 .cse16) (or .cse14 .cse17 .cse12 (= (* 4 c_~N~0) (+ .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24)) .cse8) (or .cse6 .cse0 .cse5) (or .cse7 .cse4 .cse8 .cse25) (or .cse12 .cse13 .cse8 .cse25) (or .cse9 .cse0 .cse11) (or .cse2 .cse12 .cse13 .cse8 .cse11) (or (= .cse19 4) .cse14 .cse17 .cse12 .cse8) (or .cse7 .cse4 .cse8 .cse16) (or .cse12 .cse13 .cse8 .cse16) (or .cse2 .cse3 .cse0 .cse10) (or .cse2 .cse4 .cse0 .cse5 .cse11) (or .cse4 .cse0 .cse5 .cse25) (or .cse2 .cse3 .cse7 .cse4 .cse8) (or .cse0 .cse10 .cse25) (or .cse0 .cse26) (or .cse14 .cse12 .cse15 .cse8 .cse11)))))))))) (not .cse29)) (or .cse29 (let ((.cse30 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse56 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse55 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse56 4)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse55))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse56)) 4) (not (= .cse55 4))))))) (.cse31 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse54 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse52 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse51 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse54 4)))) (let ((.cse53 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse51))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse54)))) (let ((.cse50 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse53 .cse51))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse54)))) (or (not (= .cse50 4)) (not (= .cse51 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse50 .cse53 .cse51))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse54)) 4) (not (= .cse53 4))))))))) (.cse33 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse49 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse48 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse46 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse49 4)))) (let ((.cse47 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse48 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse49)))) (or (not (= .cse46 4)) (not (= .cse47 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse48 .cse47 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse49)) 4))))))) (.cse32 (forall ((v_ArrVal_1022 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |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)) 4)))) (and (or .cse2 .cse30 .cse3 .cse4) (or .cse30 .cse4 .cse16) (or .cse3 .cse31) (or .cse2 .cse3 .cse4 .cse32 .cse5) (or .cse33 .cse25) (or .cse9 .cse32 .cse11) (or .cse2 .cse30 .cse4 .cse11) (or .cse33 .cse2 .cse11) (or .cse30 .cse4 .cse25) (or .cse4 .cse32 .cse5 .cse16) (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse39 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse38 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse35 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse39 4)))) (let ((.cse37 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse39)))) (let ((.cse34 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse37 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse39)))) (let ((.cse36 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse34 .cse37 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse39)))) (or (not (= .cse34 4)) (not (= .cse35 4)) (not (= .cse36 4)) (not (= .cse37 4)) (= (* 4 c_~N~0) (+ .cse36 .cse38 .cse34 .cse37 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse36 .cse38 .cse34 .cse37 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse39)) .cse35))))))))) (or .cse6 .cse30) (or .cse32 .cse1) (or .cse31 .cse11) (or .cse10 .cse32 .cse16) (or .cse9 .cse3 .cse32) (or .cse33 .cse16) (or .cse10 .cse32 .cse25) (or .cse2 .cse10 .cse32 .cse11) (or .cse33 .cse2 .cse3) (or .cse2 .cse3 .cse10 .cse32) (or .cse4 .cse32 .cse5 .cse25) (or .cse6 .cse32 .cse5) (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse45 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse44 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse41 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse45 4)))) (let ((.cse43 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse45)))) (let ((.cse40 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse43 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse45)))) (let ((.cse42 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse40 .cse43 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse45)))) (or (not (= .cse40 4)) (not (= .cse41 4)) (not (= .cse42 4)) (not (= .cse43 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse42 .cse44 .cse40 .cse43 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse45)) 4)))))))) (or .cse26 .cse32) (or .cse2 .cse4 .cse32 .cse5 .cse11)))))))) is different from false [2021-11-25 19:08:46,285 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse28 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse18 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse28)))) (let ((.cse29 (= .cse18 4)) (.cse1 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse84 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse80 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse81 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse84)))) (let ((.cse82 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse80 .cse81))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse84)))) (let ((.cse83 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse80 .cse81 .cse82))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse84)))) (or (= (* 4 c_~N~0) (+ .cse80 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse80 .cse81 .cse82 .cse83))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse84)) .cse81 .cse82 .cse83)) (not (= .cse81 4)) (not (= 4 .cse83)) (not (= .cse82 4))))))))) (.cse9 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse79 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse77 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse76 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse79)))) (let ((.cse78 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse77 .cse76))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse79)))) (or (not (= .cse76 4)) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse77 .cse76 .cse78))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse79))) (not (= .cse78 4)))))))) (.cse16 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse75 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse74 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse75)))) (or (= (let ((.cse73 (select v_ArrVal_1029 |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_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse73 .cse74))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse75)) .cse73 .cse74)) (* 4 c_~N~0)) (not (= .cse74 4))))))) (.cse3 (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 (* |c_ULTIMATE.start_main_~i~0#1| 4))))))) (.cse10 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse72 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse71 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse72)))) (or (not (= .cse71 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse71))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse72)) 4)))))) (.cse25 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse70 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse69 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse70)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse69))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse70)) 4) (not (= .cse69 4))))))) (.cse6 (forall ((v_ArrVal_1028 (Array Int Int))) (let ((.cse68 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse62 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse68)))) (or (not (= .cse62 4)) (let ((.cse67 (select v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse66 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse62 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse68)))) (let ((.cse65 (= .cse66 4))) (let ((.cse63 (not .cse65)) (.cse64 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse62 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse68)))) (and (or .cse63 (= .cse64 4)) (or (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 c_~N~0) (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 (* |c_ULTIMATE.start_main_~i~0#1| 4)))))) .cse65) (or .cse65 (forall ((v_ArrVal_1033 (Array Int Int))) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 (* |c_ULTIMATE.start_main_~i~0#1| 4)))))) (or .cse63 (= (* 4 c_~N~0) (+ .cse66 .cse62 .cse67 .cse64))))))))))))) (.cse26 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse61 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse60 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse57 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse61)))) (let ((.cse59 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse60 .cse57))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse61)))) (let ((.cse58 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse60 .cse57 .cse59))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse61)))) (or (not (= .cse57 4)) (not (= 4 .cse58)) (not (= .cse59 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse60 .cse57 .cse59 .cse58))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse61)) 4)))))))) (.cse2 (forall ((v_ArrVal_1029 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 (* |c_ULTIMATE.start_main_~i~0#1| 4))) 4))) (.cse4 (forall ((v_ArrVal_1028 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |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))) 4))) (.cse5 (forall ((v_ArrVal_1024 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |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))) 4))) (.cse11 (forall ((v_ArrVal_1033 (Array Int Int))) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 (* |c_ULTIMATE.start_main_~i~0#1| 4))))))) (and (or (let ((.cse27 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse22 (select .cse27 |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 .cse27 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse22))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse28 4)))) (let ((.cse21 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse28)))) (let ((.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| (+ .cse18 .cse21 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse28)))) (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| (+ .cse18 .cse20 .cse21 .cse22 .cse23))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse28)))) (let ((.cse0 (= .cse23 4)) (.cse7 (= .cse21 4)) (.cse13 (= .cse20 4)) (.cse15 (= 4 .cse24))) (let ((.cse19 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse27 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse18 .cse20 .cse21 .cse22 .cse23 .cse24))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse28))) (.cse17 (not .cse15)) (.cse14 (not .cse13)) (.cse12 (not .cse7)) (.cse8 (not .cse0))) (and (or .cse0 .cse1) (or .cse2 .cse3 .cse4 .cse0 .cse5) (or .cse6 .cse7 .cse8) (or .cse9 .cse3 .cse0) (or .cse2 .cse0 .cse10 .cse11) (or .cse2 .cse3 .cse12 .cse13 .cse8) (or .cse14 .cse3 .cse12 .cse15 .cse8) (or .cse2 .cse7 .cse4 .cse8 .cse11) (or .cse4 .cse0 .cse5 .cse16) (or .cse0 .cse10 .cse16) (or .cse14 .cse17 .cse12 (= (* 4 c_~N~0) (+ .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24)) .cse8) (or .cse6 .cse0 .cse5) (or .cse7 .cse4 .cse8 .cse25) (or .cse12 .cse13 .cse8 .cse25) (or .cse9 .cse0 .cse11) (or .cse2 .cse12 .cse13 .cse8 .cse11) (or (= .cse19 4) .cse14 .cse17 .cse12 .cse8) (or .cse7 .cse4 .cse8 .cse16) (or .cse12 .cse13 .cse8 .cse16) (or .cse2 .cse3 .cse0 .cse10) (or .cse2 .cse4 .cse0 .cse5 .cse11) (or .cse4 .cse0 .cse5 .cse25) (or .cse2 .cse3 .cse7 .cse4 .cse8) (or .cse0 .cse10 .cse25) (or .cse0 .cse26) (or .cse14 .cse12 .cse15 .cse8 .cse11)))))))))) (not .cse29)) (or .cse29 (let ((.cse30 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse56 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse55 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse56 4)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse55))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse56)) 4) (not (= .cse55 4))))))) (.cse31 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse54 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse52 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse51 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse54 4)))) (let ((.cse53 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse51))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse54)))) (let ((.cse50 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse53 .cse51))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse54)))) (or (not (= .cse50 4)) (not (= .cse51 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse52 .cse50 .cse53 .cse51))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse54)) 4) (not (= .cse53 4))))))))) (.cse33 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse49 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse48 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse46 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse49 4)))) (let ((.cse47 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse48 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse49)))) (or (not (= .cse46 4)) (not (= .cse47 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse48 .cse47 .cse46))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse49)) 4))))))) (.cse32 (forall ((v_ArrVal_1022 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |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)) 4)))) (and (or .cse2 .cse30 .cse3 .cse4) (or .cse30 .cse4 .cse16) (or .cse3 .cse31) (or .cse2 .cse3 .cse4 .cse32 .cse5) (or .cse33 .cse25) (or .cse9 .cse32 .cse11) (or .cse2 .cse30 .cse4 .cse11) (or .cse33 .cse2 .cse11) (or .cse30 .cse4 .cse25) (or .cse4 .cse32 .cse5 .cse16) (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse39 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse38 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse35 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse39 4)))) (let ((.cse37 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse39)))) (let ((.cse34 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse37 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse39)))) (let ((.cse36 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse38 .cse34 .cse37 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse39)))) (or (not (= .cse34 4)) (not (= .cse35 4)) (not (= .cse36 4)) (not (= .cse37 4)) (= (* 4 c_~N~0) (+ .cse36 .cse38 .cse34 .cse37 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse36 .cse38 .cse34 .cse37 .cse35))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse39)) .cse35))))))))) (or .cse6 .cse30) (or .cse32 .cse1) (or .cse31 .cse11) (or .cse10 .cse32 .cse16) (or .cse9 .cse3 .cse32) (or .cse33 .cse16) (or .cse10 .cse32 .cse25) (or .cse2 .cse10 .cse32 .cse11) (or .cse33 .cse2 .cse3) (or .cse2 .cse3 .cse10 .cse32) (or .cse4 .cse32 .cse5 .cse25) (or .cse6 .cse32 .cse5) (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse45 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse44 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse41 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse45 4)))) (let ((.cse43 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8 .cse45)))) (let ((.cse40 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse43 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12 .cse45)))) (let ((.cse42 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse40 .cse43 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16 .cse45)))) (or (not (= .cse40 4)) (not (= .cse41 4)) (not (= .cse42 4)) (not (= .cse43 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse42 .cse44 .cse40 .cse43 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20 .cse45)) 4)))))))) (or .cse26 .cse32) (or .cse2 .cse4 .cse32 .cse5 .cse11)))))))) is different from true [2021-11-25 19:08:57,255 WARN L860 $PredicateComparison]: unable to prove that (or (let ((.cse44 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (= .cse44 4)) (.cse17 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse71 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse68 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse69 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse71 .cse68))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse70 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse69 .cse71 .cse68))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (not (= 4 .cse68)) (not (= .cse69 4)) (not (= .cse70 4)) (= (* 4 c_~N~0) (+ .cse69 .cse70 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse69 .cse70 .cse71 .cse68))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) .cse71 .cse68)))))))) (.cse19 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse66 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse67 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse64 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse65 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse64 .cse66 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse64 .cse65 .cse66 .cse67))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4) (not (= 4 .cse67)) (not (= .cse64 4)) (not (= .cse65 4)))))))) (.cse26 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse63 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse61 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse62 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse63 .cse61))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (or (not (= 4 .cse61)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse62 .cse63 .cse61))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) 4) (not (= .cse62 4))))))) (.cse16 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse60 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (= (let ((.cse59 (select v_ArrVal_1029 |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_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse60))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) .cse59 .cse60)) (* 4 c_~N~0)) (not (= .cse60 4)))))) (.cse20 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse58 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse58))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4) (not (= .cse58 4)))))) (.cse14 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse57 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 4 .cse57)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse57))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 4))))) (.cse6 (forall ((v_ArrVal_1028 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 4))) (.cse12 (forall ((v_ArrVal_1033 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4))) (.cse7 (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 c_~N~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (.cse10 (forall ((v_ArrVal_1029 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) 4))) (.cse8 (forall ((v_ArrVal_1024 (Array Int Int))) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))) (.cse15 (forall ((v_ArrVal_1028 (Array Int Int))) (let ((.cse51 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (or (not (= .cse51 4)) (let ((.cse56 (select v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse55 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse56))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse52 (= .cse55 4))) (let ((.cse53 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse55 .cse56))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20))) (.cse54 (not .cse52))) (and (or (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 c_~N~0) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) .cse52) (or (= .cse53 4) .cse54) (or (forall ((v_ArrVal_1033 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4)) .cse52) (or (= (+ .cse51 .cse55 .cse56 .cse53) (* 4 c_~N~0)) .cse54))))))))))) (and (or .cse0 (let ((.cse9 (forall ((v_ArrVal_1022 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 4))) (.cse13 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse34 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse32 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse33 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse31 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 .cse32 .cse33))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (or (not (= .cse31 4)) (not (= .cse32 4)) (not (= .cse33 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 .cse32 .cse33 .cse31))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) 4))))))) (.cse18 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse30 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse28 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse29 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse30 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= .cse28 4)) (not (= .cse29 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse30 .cse28 .cse29))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 4)))))) (.cse11 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse27 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (or (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 4) (not (= .cse27 4))))))) (and (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse1 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse2 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse3 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |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)))) (let ((.cse4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (= (* 4 c_~N~0) (+ .cse1 .cse2 .cse3 .cse4 .cse5 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3 .cse4 .cse5))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)))) (not (= .cse4 4)) (not (= .cse2 4)) (not (= .cse3 4)) (not (= .cse5 4)))))))) (or .cse6 .cse7 .cse8 .cse9 .cse10) (or .cse6 .cse11 .cse10 .cse12) (or .cse7 .cse13) (or .cse7 .cse9 .cse10 .cse14) (or .cse8 .cse15 .cse9) (or .cse6 .cse8 .cse9 .cse16) (or .cse15 .cse11) (or .cse17 .cse9) (or .cse16 .cse18) (or .cse9 .cse16 .cse14) (or .cse6 .cse11 .cse16) (or .cse9 .cse19) (or .cse9 .cse10 .cse12 .cse14) (or .cse10 .cse18 .cse12) (or .cse6 .cse8 .cse9 .cse20) (or .cse6 .cse7 .cse11 .cse10) (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse23 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse22 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse24 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse22))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse21 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse22 .cse24))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse25 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse22 .cse24 .cse21))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (not (= .cse21 4)) (not (= .cse22 4)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse22 .cse24 .cse21 .cse25))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4) (not (= .cse24 4)) (not (= .cse25 4)))))))) (or .cse9 .cse14 .cse20) (or .cse6 .cse8 .cse9 .cse10 .cse12) (or .cse26 .cse9 .cse12) (or .cse7 .cse26 .cse9) (or .cse13 .cse12) (or .cse18 .cse20) (or .cse7 .cse10 .cse18) (or .cse6 .cse11 .cse20)))) (or (not .cse0) (let ((.cse50 (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse49 (select .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse46 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse48 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse46 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse47 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse46 .cse48 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse45 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse46 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse40 (= .cse46 4)) (.cse41 (= .cse48 4)) (.cse39 (= .cse47 4)) (.cse35 (= .cse45 4))) (let ((.cse43 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse50 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse44 .cse45 .cse46 .cse47 .cse48 .cse49))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20))) (.cse42 (not .cse35)) (.cse38 (not .cse39)) (.cse36 (not .cse41)) (.cse37 (not .cse40))) (and (or .cse35 .cse36 .cse37 .cse12 .cse38) (or .cse39 .cse36 .cse37 .cse20) (or .cse16 .cse14 .cse40) (or .cse6 .cse7 .cse37 .cse10 .cse41) (or .cse17 .cse40) (or .cse15 .cse37 .cse41) (or .cse6 .cse8 .cse10 .cse12 .cse40) (or .cse39 .cse36 .cse37 .cse10 .cse12) (or .cse7 .cse26 .cse40) (or .cse6 .cse8 .cse16 .cse40) (or .cse19 .cse40) (or .cse7 .cse35 .cse36 .cse37 .cse38) (or .cse6 .cse7 .cse8 .cse10 .cse40) (or .cse14 .cse20 .cse40) (or .cse36 .cse37 .cse42 .cse38 (= 4 .cse43)) (or .cse6 .cse37 .cse16 .cse41) (or .cse6 .cse37 .cse41 .cse20) (or .cse26 .cse12 .cse40) (or .cse39 .cse36 .cse37 .cse16) (or .cse7 .cse10 .cse14 .cse40) (or .cse6 .cse8 .cse20 .cse40) (or .cse10 .cse12 .cse14 .cse40) (or .cse36 .cse37 (= (* 4 c_~N~0) (+ .cse44 .cse45 .cse46 .cse47 .cse48 .cse49 .cse43)) .cse42 .cse38) (or .cse6 .cse37 .cse10 .cse12 .cse41) (or .cse39 .cse7 .cse36 .cse37 .cse10) (or .cse8 .cse15 .cse40)))))))))))))) (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) is different from true [2021-11-25 19:10:07,568 WARN L860 $PredicateComparison]: unable to prove that (forall ((~N~0 Int)) (or (let ((.cse57 (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)) 4))) (let ((.cse49 (select .cse57 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse39 (= .cse49 4)) (.cse7 (forall ((v_ArrVal_1024 (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)) 4)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 4))) (.cse15 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse85 (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)) 4)))) (let ((.cse84 (select (select (store .cse85 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (not (= 4 .cse84)) (= (select (select (store .cse85 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse84))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4)))))) (.cse14 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse83 (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)) 4)))) (let ((.cse79 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (.cse82 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse81 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse79 .cse82))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse80 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse79 .cse81 .cse82))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (= (* 4 ~N~0) (+ .cse79 .cse80 .cse81 .cse82 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse79 .cse80 .cse81 .cse82))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)))) (not (= .cse81 4)) (not (= .cse79 4)) (not (= .cse80 4))))))))) (.cse10 (forall ((v_ArrVal_1028 (Array Int Int))) (let ((.cse78 (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)) 4)))) (let ((.cse72 (select (select (store .cse78 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (or (let ((.cse74 (select v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse73 (select (select (store .cse78 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse74))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse77 (= .cse73 4))) (let ((.cse76 (not .cse77)) (.cse75 (select (select (store .cse78 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse72 .cse73 .cse74))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)))) (and (or (= (* 4 ~N~0) (+ .cse72 .cse73 .cse74 .cse75)) .cse76) (or .cse77 (forall ((v_ArrVal_1033 (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)) 4)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4))) (or (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 ~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)) 4)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) .cse77) (or .cse76 (= 4 .cse75))))))) (not (= .cse72 4))))))) (.cse13 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse69 (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)) 4)))) (let ((.cse68 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (.cse71 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse67 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse68 .cse71))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse70 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse68 .cse67 .cse71))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (not (= .cse67 4)) (not (= .cse68 4)) (= 4 (select (select (store .cse69 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse68 .cse70 .cse67 .cse71))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20))) (not (= .cse70 4))))))))) (.cse3 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse65 (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)) 4)))) (let ((.cse66 (select (select (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= (select (select (store .cse65 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse66 (select v_ArrVal_1024 |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)) 4) (not (= .cse66 4))))))) (.cse0 (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 ~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)) 4)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (.cse1 (forall ((v_ArrVal_1029 (Array Int Int))) (= 4 (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)) 4)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))))) (.cse6 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse62 (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)) 4)))) (let ((.cse63 (select (select (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))) (.cse64 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse61 (select (select (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse63 .cse64))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (or (not (= .cse61 4)) (= (select (select (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse63 .cse61 .cse64))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) 4) (not (= .cse63 4)))))))) (.cse9 (forall ((v_ArrVal_1033 (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)) 4)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4))) (.cse5 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse58 (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)) 4)))) (let ((.cse60 (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (= (* 4 ~N~0) (let ((.cse59 (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ (select (select (store .cse58 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse59 .cse60))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) .cse59 .cse60))) (not (= 4 .cse60))))))) (.cse8 (forall ((v_ArrVal_1028 (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)) 4)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 4)))) (and (or (let ((.cse12 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse34 (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)) 4)))) (let ((.cse35 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse36 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse37 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse36))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse38 (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse36 .cse37))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (or (= (select (select (store .cse34 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse36 .cse37 .cse38))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) 4) (not (= .cse36 4)) (not (= .cse37 4)) (not (= 4 .cse38))))))))) (.cse2 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse30 (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)) 4)))) (let ((.cse31 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse32 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse33 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse31 .cse32))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (= 4 (select (select (store .cse30 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse31 .cse32 .cse33))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12))) (not (= .cse32 4)) (not (= .cse33 4)))))))) (.cse4 (forall ((v_ArrVal_1022 (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)) 4)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 4))) (.cse11 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse28 (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)) 4)))) (let ((.cse29 (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (or (= (select (select (store .cse28 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1022 |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| 8)) 4) (not (= .cse29 4)))))))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse0 .cse4 .cse6) (or .cse4 .cse7 .cse1 .cse8 .cse9) (or .cse10 .cse11) (or .cse5 .cse2) (or .cse12 .cse0) (or .cse1 .cse2 .cse9) (or .cse13 .cse4) (or .cse14 .cse4) (or .cse1 .cse8 .cse9 .cse11) (or .cse12 .cse9) (or .cse3 .cse4 .cse15) (or .cse4 .cse7 .cse15 .cse8) (or .cse3 .cse0 .cse4 .cse1) (or .cse4 .cse7 .cse5 .cse8) (or .cse3 .cse4 .cse1 .cse9) (or .cse5 .cse8 .cse11) (or .cse15 .cse2) (or .cse0 .cse4 .cse7 .cse1 .cse8) (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse19 (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)) 4)))) (let ((.cse20 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse17 (select (select (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse18 (select (select (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse20 .cse17))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse21 (select (select (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse20 .cse17 .cse18))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse16 (select (select (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse20 .cse17 .cse18 .cse21))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (not (= .cse16 4)) (not (= .cse17 4)) (not (= .cse18 4)) (= (select (select (store .cse19 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse20 .cse16 .cse17 .cse18 .cse21))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4) (not (= 4 .cse21))))))))) (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse24 (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)) 4)))) (let ((.cse23 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse25 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse26 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |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| 8)))) (let ((.cse27 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |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| 12)))) (let ((.cse22 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse25 .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (not (= .cse22 4)) (= (* 4 ~N~0) (+ .cse23 (select (select (store .cse24 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse23 .cse22 .cse25 .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) .cse22 .cse25 .cse26 .cse27)) (not (= .cse25 4)) (not (= .cse26 4)) (not (= 4 .cse27))))))))) (or .cse4 .cse9 .cse6) (or .cse15 .cse8 .cse11) (or .cse4 .cse10 .cse7) (or .cse0 .cse1 .cse8 .cse11))) .cse39) (or (not .cse39) (let ((.cse55 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse57))) (let ((.cse56 (select .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse52 (select .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse53 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse49 .cse52))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse50 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse49 .cse52 .cse53))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse54 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse49 .cse50 .cse52 .cse53))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse51 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse49 .cse50 .cse52 .cse53 .cse54))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse40 (= .cse53 4)) (.cse47 (= 4 .cse54)) (.cse46 (= .cse50 4)) (.cse48 (= .cse51 4))) (let ((.cse43 (not .cse48)) (.cse42 (select (select (store .cse55 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse56 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse49 .cse50 .cse51 .cse52 .cse53 .cse54))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20))) (.cse44 (not .cse46)) (.cse45 (not .cse47)) (.cse41 (not .cse40))) (and (or .cse0 .cse7 .cse1 .cse8 .cse40) (or .cse7 .cse1 .cse8 .cse9 .cse40) (or .cse7 .cse5 .cse8 .cse40) (or .cse41 (= .cse42 4) .cse43 .cse44 .cse45) (or .cse7 .cse15 .cse8 .cse40) (or .cse41 .cse0 .cse46 .cse1 .cse8) (or .cse41 .cse44 .cse47 .cse15) (or .cse3 .cse5 .cse40) (or .cse41 .cse46 .cse15 .cse8) (or .cse41 .cse0 .cse44 .cse45 .cse48) (or .cse41 .cse44 .cse47 .cse5) (or .cse10 .cse7 .cse40) (or .cse41 .cse44 .cse47 .cse1 .cse9) (or .cse3 .cse15 .cse40) (or .cse41 .cse0 .cse44 .cse47 .cse1) (or .cse14 .cse40) (or .cse41 .cse46 .cse10) (or .cse0 .cse40 .cse6) (or .cse41 .cse43 .cse44 .cse45 (= (* 4 ~N~0) (+ .cse49 .cse50 .cse51 .cse42 .cse52 .cse53 .cse54))) (or .cse13 .cse40) (or .cse41 .cse46 .cse1 .cse8 .cse9) (or .cse3 .cse1 .cse9 .cse40) (or .cse3 .cse0 .cse1 .cse40) (or .cse9 .cse40 .cse6) (or .cse41 .cse44 .cse45 .cse48 .cse9) (or .cse41 .cse46 .cse5 .cse8)))))))))))))))) (<= ~N~0 |c_ULTIMATE.start_main_~i~0#1|) (< (+ |c_ULTIMATE.start_main_~i~0#1| 1) ~N~0))) is different from true [2021-11-25 19:12:56,969 WARN L860 $PredicateComparison]: unable to prove that (forall ((~N~0 Int)) (or (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) ~N~0) (let ((.cse63 (let ((.cse106 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse106) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse106 4) 4)))) (let ((.cse54 (select .cse63 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse22 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse101 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse105 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse105) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse105 4) 4))))) (let ((.cse102 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse104 (select (select (store .cse101 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse103 (select (select (store .cse101 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse102 .cse104))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse100 (select (select (store .cse101 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse102 .cse103 .cse104))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (not (= .cse100 4)) (= (select (select (store .cse101 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse102 .cse103 .cse100 .cse104))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4) (not (= 4 .cse104)) (not (= .cse103 4))))))))) (.cse13 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse95 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse99 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse99) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse99 4) 4))))) (let ((.cse96 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse98 (select (select (store .cse95 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse97 (select (select (store .cse95 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse96 .cse98))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse94 (select (select (store .cse95 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse96 .cse97 .cse98))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (not (= .cse94 4)) (= (* 4 ~N~0) (+ (select (select (store .cse95 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse96 .cse97 .cse94 .cse98))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) .cse96 .cse97 .cse94 .cse98)) (not (= 4 .cse98)) (not (= .cse97 4))))))))) (.cse12 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse89 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse93 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse93) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse93 4) 4))))) (let ((.cse90 (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse92 (select (select (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse91 (select (select (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse90 .cse92))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (or (= (select (select (store .cse89 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse90 .cse91 .cse92))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) 4) (not (= 4 .cse92)) (not (= .cse91 4)))))))) (.cse0 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse86 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse88 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse88) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse88 4) 4))))) (let ((.cse87 (select (select (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (= (select (select (store .cse86 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse87))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4) (not (= 4 .cse87))))))) (.cse10 (forall ((v_ArrVal_1029 (Array Int Int))) (let ((.cse83 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse85 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse85) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse85 4) 4))))) (let ((.cse84 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (= (let ((.cse82 (select v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (+ .cse82 (select (select (store .cse83 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1029 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse82 .cse84))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) .cse84)) (* 4 ~N~0)) (not (= 4 .cse84))))))) (.cse1 (forall ((v_ArrVal_1028 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse81 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse81) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse81 4) 4))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 4))) (.cse7 (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 ~N~0) (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse80 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse80) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse80 4) 4))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)))))) (.cse11 (forall ((v_ArrVal_1028 (Array Int Int))) (let ((.cse78 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse79 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse79) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse79 4) 4))))) (let ((.cse76 (select (select (store .cse78 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1028) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (or (let ((.cse77 (select v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse75 (select (select (store .cse78 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse76 .cse77))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse70 (= .cse75 4))) (let ((.cse73 (not .cse70)) (.cse72 (select (select (store .cse78 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1028 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse75 .cse76 .cse77))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)))) (and (or .cse70 (forall ((v_ArrVal_1033 (Array Int Int))) (= (* 4 ~N~0) (+ (select v_ArrVal_1033 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse71 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse71) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse71 4) 4))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)))))) (or (= .cse72 4) .cse73) (or .cse70 (forall ((v_ArrVal_1033 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse74 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse74) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse74 4) 4))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4))) (or .cse73 (= (* 4 ~N~0) (+ .cse75 .cse76 .cse77 .cse72)))))))) (not (= .cse76 4))))))) (.cse8 (forall ((v_ArrVal_1024 (Array Int Int))) (= 4 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse69 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse69) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse69 4) 4))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8))))) (.cse14 (forall ((v_ArrVal_1024 (Array Int Int))) (let ((.cse67 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse68 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse68) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse68 4) 4))))) (let ((.cse66 (select (select (store .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1024) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= 4 .cse66)) (= (select (select (store .cse67 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1024 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse66))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 4)))))) (.cse4 (forall ((v_ArrVal_1033 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse65 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse65) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse65 4) 4))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1033) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)) 4))) (.cse6 (forall ((v_ArrVal_1029 (Array Int Int))) (= 4 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse64 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse64) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse64 4) 4))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1029) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16))))) (.cse45 (= .cse54 4))) (and (or (let ((.cse5 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse42 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse44 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse44) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse44 4) 4))))) (let ((.cse43 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse41 (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse40 (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse43 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (or (not (= .cse40 4)) (not (= .cse41 4)) (= (select (select (store .cse42 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse40 .cse43 .cse41))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)) 4))))))) (.cse9 (forall ((v_ArrVal_1022 (Array Int Int))) (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse39 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse39) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse39 4) 4))) |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 4))) (.cse3 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse33 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse38 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse38) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse38 4) 4))))) (let ((.cse35 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse36 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse34 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse35 .cse36))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse37 (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 .cse35 .cse36))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (or (= (select (select (store .cse33 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse34 .cse35 .cse36 .cse37))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)) 4) (not (= .cse34 4)) (not (= .cse36 4)) (not (= .cse37 4))))))))) (.cse2 (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse32 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse32) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse32 4) 4))))) (let ((.cse30 (select (select (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (or (not (= .cse30 4)) (= (select (select (store .cse31 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|) .cse30))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)) 4))))))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4) (or .cse5 .cse0) (or .cse1 .cse6 .cse7 .cse2) (or .cse8 .cse9 .cse1 .cse6 .cse7) (or .cse5 .cse6 .cse7) (or .cse8 .cse9 .cse10 .cse1) (or .cse11 .cse2) (or .cse5 .cse10) (or .cse9 .cse4 .cse12) (or .cse9 .cse13) (or .cse8 .cse9 .cse0 .cse1) (or .cse9 .cse14 .cse4 .cse6) (or .cse8 .cse9 .cse4 .cse1 .cse6) (or .cse9 .cse14 .cse10) (or .cse10 .cse1 .cse2) (or .cse9 .cse14 .cse6 .cse7) (or .cse11 .cse8 .cse9) (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse20 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse21 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse21) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse21 4) 4))))) (let ((.cse17 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse18 (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse16 (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse17 .cse18))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse19 (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse16 .cse17 .cse18))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse15 (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse16 .cse17 .cse18 .cse19))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (not (= .cse15 4)) (= (* 4 ~N~0) (+ .cse16 .cse17 .cse18 .cse15 .cse19 (select (select (store .cse20 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse16 .cse17 .cse18 .cse15 .cse19))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20)))) (not (= .cse16 4)) (not (= .cse18 4)) (not (= .cse19 4))))))))) (or .cse9 .cse22) (or .cse9 .cse14 .cse0) (or .cse5 .cse4 .cse6) (forall ((v_ArrVal_1022 (Array Int Int))) (let ((.cse26 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (let ((.cse29 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse29) 4) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse29 4) 4))))) (let ((.cse27 (select v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse25 (select (select (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.base| v_ArrVal_1022) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse24 (select (select (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse27 .cse25))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse28 (select (select (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse27 .cse25))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse23 (select (select (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse27 .cse25 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (or (not (= .cse23 4)) (not (= .cse24 4)) (not (= .cse25 4)) (= 4 (select (select (store .cse26 |c_ULTIMATE.start_main_~#sum~0#1.base| (store v_ArrVal_1022 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse24 .cse27 .cse25 .cse23 .cse28))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20))) (not (= .cse28 4))))))))) (or .cse9 .cse12 .cse7) (or .cse3 .cse7) (or .cse4 .cse1 .cse6 .cse2))) .cse45) (or (let ((.cse61 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse63))) (let ((.cse62 (select .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse55 (select .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse51 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse54 .cse55))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (let ((.cse52 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse54 .cse55))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 8)))) (let ((.cse53 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse52 .cse54 .cse55))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 12)))) (let ((.cse50 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse51 .cse52 .cse53 .cse54 .cse55))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 16)))) (let ((.cse48 (= .cse51 4)) (.cse46 (= .cse52 4)) (.cse59 (= .cse53 4)) (.cse60 (= .cse50 4))) (let ((.cse56 (select (select (store .cse61 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse62 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse50 .cse51 .cse52 .cse53 .cse54 .cse55))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 20))) (.cse58 (not .cse60)) (.cse57 (not .cse59)) (.cse49 (not .cse46)) (.cse47 (not .cse48))) (and (or .cse46 .cse4 .cse1 .cse6 .cse47) (or .cse8 .cse48 .cse4 .cse1 .cse6) (or .cse48 .cse22) (or .cse48 .cse4 .cse12) (or .cse46 .cse11 .cse47) (or .cse46 .cse0 .cse1 .cse47) (or .cse49 (= (* 4 ~N~0) (+ .cse50 .cse51 .cse52 .cse53 .cse54 .cse55 .cse56)) .cse57 .cse47 .cse58) (or .cse8 .cse48 .cse10 .cse1) (or .cse8 .cse48 .cse0 .cse1) (or .cse48 .cse14 .cse6 .cse7) (or .cse49 .cse59 .cse6 .cse47 .cse7) (or .cse46 .cse1 .cse6 .cse47 .cse7) (or .cse49 .cse59 .cse10 .cse47) (or .cse48 .cse13) (or .cse49 .cse57 .cse60 .cse47 .cse7) (or .cse49 (= .cse56 4) .cse57 .cse47 .cse58) (or .cse49 .cse59 .cse0 .cse47) (or .cse48 .cse12 .cse7) (or .cse49 .cse57 .cse4 .cse60 .cse47) (or .cse46 .cse10 .cse1 .cse47) (or .cse48 .cse14 .cse0) (or .cse48 .cse14 .cse10) (or .cse49 .cse59 .cse4 .cse6 .cse47) (or .cse8 .cse48 .cse1 .cse6 .cse7) (or .cse11 .cse8 .cse48) (or .cse48 .cse14 .cse4 .cse6))))))))))) (not .cse45)))))) (<= ~N~0 (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from true