./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array9_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-patterns/array9_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs --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 8ae6792b63619c19d32145c9c656ded5ce2ab653945337eaf95cf4eb94965d3b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:46:16,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:46:16,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:46:16,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:46:16,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:46:16,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:46:16,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:46:16,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:46:16,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:46:16,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:46:16,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:46:16,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:46:16,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:46:16,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:46:16,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:46:16,414 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:46:16,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:46:16,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:46:16,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:46:16,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:46:16,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:46:16,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:46:16,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:46:16,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:46:16,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:46:16,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:46:16,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:46:16,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:46:16,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:46:16,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:46:16,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:46:16,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:46:16,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:46:16,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:46:16,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:46:16,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:46:16,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:46:16,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:46:16,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:46:16,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:46:16,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:46:16,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 15:46:16,525 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:46:16,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:46:16,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:46:16,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:46:16,529 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:46:16,530 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:46:16,530 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:46:16,530 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:46:16,537 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:46:16,538 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:46:16,539 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:46:16,539 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:46:16,540 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:46:16,540 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:46:16,540 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:46:16,540 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:46:16,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:46:16,542 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 15:46:16,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:46:16,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 15:46:16,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:46:16,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:46:16,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:46:16,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:46:16,543 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:46:16,544 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 15:46:16,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:46:16,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:46:16,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:46:16,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:46:16,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:46:16,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:46:16,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:46:16,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:46:16,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:46:16,549 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:46:16,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:46:16,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:46:16,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:46:16,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:46:16,550 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_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ae6792b63619c19d32145c9c656ded5ce2ab653945337eaf95cf4eb94965d3b [2021-11-19 15:46:16,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:46:16,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:46:16,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:46:16,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:46:16,898 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:46:16,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/array-patterns/array9_pattern.c [2021-11-19 15:46:16,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/data/0162008f5/daf2c72374b2466899a4826f33a18c51/FLAG57bc01981 [2021-11-19 15:46:17,533 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:46:17,545 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/sv-benchmarks/c/array-patterns/array9_pattern.c [2021-11-19 15:46:17,557 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/data/0162008f5/daf2c72374b2466899a4826f33a18c51/FLAG57bc01981 [2021-11-19 15:46:17,887 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/data/0162008f5/daf2c72374b2466899a4826f33a18c51 [2021-11-19 15:46:17,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:46:17,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:46:17,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:17,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:46:17,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:46:17,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:17" (1/1) ... [2021-11-19 15:46:17,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4a337a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:17, skipping insertion in model container [2021-11-19 15:46:17,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:17" (1/1) ... [2021-11-19 15:46:17,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:46:17,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:46:18,113 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_928fa44a-9b26-4474-b8c9-0d2192463670/sv-benchmarks/c/array-patterns/array9_pattern.c[1352,1365] [2021-11-19 15:46:18,133 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:18,142 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:46:18,155 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_928fa44a-9b26-4474-b8c9-0d2192463670/sv-benchmarks/c/array-patterns/array9_pattern.c[1352,1365] [2021-11-19 15:46:18,166 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:18,181 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:46:18,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18 WrapperNode [2021-11-19 15:46:18,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:18,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:46:18,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:46:18,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:46:18,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (1/1) ... [2021-11-19 15:46:18,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (1/1) ... [2021-11-19 15:46:18,222 INFO L137 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2021-11-19 15:46:18,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:46:18,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:46:18,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:46:18,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:46:18,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (1/1) ... [2021-11-19 15:46:18,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (1/1) ... [2021-11-19 15:46:18,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (1/1) ... [2021-11-19 15:46:18,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (1/1) ... [2021-11-19 15:46:18,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (1/1) ... [2021-11-19 15:46:18,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (1/1) ... [2021-11-19 15:46:18,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (1/1) ... [2021-11-19 15:46:18,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:46:18,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:46:18,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:46:18,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:46:18,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (1/1) ... [2021-11-19 15:46:18,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:46:18,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:46:18,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:46:18,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:46:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:46:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 15:46:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 15:46:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 15:46:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:46:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 15:46:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:46:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:46:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 15:46:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:46:18,430 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:46:18,432 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:46:18,622 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:46:18,672 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:46:18,673 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 15:46:18,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:46:18 BoogieIcfgContainer [2021-11-19 15:46:18,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:46:18,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:46:18,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:46:18,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:46:18,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:46:17" (1/3) ... [2021-11-19 15:46:18,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1c7cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:46:18, skipping insertion in model container [2021-11-19 15:46:18,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:18" (2/3) ... [2021-11-19 15:46:18,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1c7cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:46:18, skipping insertion in model container [2021-11-19 15:46:18,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:46:18" (3/3) ... [2021-11-19 15:46:18,686 INFO L111 eAbstractionObserver]: Analyzing ICFG array9_pattern.c [2021-11-19 15:46:18,692 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:46:18,692 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:46:18,770 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:46:18,778 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 [2021-11-19 15:46:18,779 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 15:46:18,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 15:46:18,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 15:46:18,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:18,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:18,808 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:18,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:18,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1896200689, now seen corresponding path program 1 times [2021-11-19 15:46:18,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:46:18,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996368350] [2021-11-19 15:46:18,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:18,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:46:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:19,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:19,035 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:46:19,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996368350] [2021-11-19 15:46:19,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996368350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 15:46:19,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:46:19,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 15:46:19,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618129199] [2021-11-19 15:46:19,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:19,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 15:46:19,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:46:19,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 15:46:19,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 15:46:19,078 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 15:46:19,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:19,118 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-11-19 15:46:19,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 15:46:19,120 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-19 15:46:19,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:19,129 INFO L225 Difference]: With dead ends: 24 [2021-11-19 15:46:19,129 INFO L226 Difference]: Without dead ends: 15 [2021-11-19 15:46:19,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 15:46:19,137 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:19,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:46:19,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-19 15:46:19,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-19 15:46:19,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 15:46:19,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-11-19 15:46:19,180 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 11 [2021-11-19 15:46:19,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:19,182 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-11-19 15:46:19,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 15:46:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-11-19 15:46:19,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-19 15:46:19,215 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:19,215 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:19,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 15:46:19,216 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:19,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:19,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1894514403, now seen corresponding path program 1 times [2021-11-19 15:46:19,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:46:19,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623371207] [2021-11-19 15:46:19,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:19,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:46:19,247 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 15:46:19,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615537424] [2021-11-19 15:46:19,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:19,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:46:19,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:46:19,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:46:19,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 15:46:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:19,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 15:46:19,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:19,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:46:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:46:19,557 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:46:19,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623371207] [2021-11-19 15:46:19,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 15:46:19,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615537424] [2021-11-19 15:46:19,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615537424] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:46:19,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 15:46:19,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-19 15:46:19,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597526465] [2021-11-19 15:46:19,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:46:19,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:46:19,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 15:46:19,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:46:19,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:46:19,562 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 15:46:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:46:19,646 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2021-11-19 15:46:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 15:46:19,647 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2021-11-19 15:46:19,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:46:19,649 INFO L225 Difference]: With dead ends: 30 [2021-11-19 15:46:19,652 INFO L226 Difference]: Without dead ends: 19 [2021-11-19 15:46:19,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-19 15:46:19,655 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 14 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:46:19,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 20 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 15:46:19,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-19 15:46:19,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-19 15:46:19,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 15:46:19,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-19 15:46:19,662 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2021-11-19 15:46:19,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:46:19,663 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-19 15:46:19,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 15:46:19,663 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-19 15:46:19,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 15:46:19,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:46:19,664 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:46:19,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:46:19,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:46:19,865 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:46:19,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:46:19,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1902877789, now seen corresponding path program 1 times [2021-11-19 15:46:19,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 15:46:19,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224969770] [2021-11-19 15:46:19,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:19,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 15:46:19,891 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-19 15:46:19,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140915682] [2021-11-19 15:46:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:46:19,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:46:19,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:46:19,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:46:19,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 15:46:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:46:19,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-19 15:46:19,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:46:20,031 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 [2021-11-19 15:46:20,081 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 27 treesize of output 15 [2021-11-19 15:46:20,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:46:20,641 INFO L354 Elim1Store]: treesize reduction 72, result has 4.0 percent of original size [2021-11-19 15:46:20,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 69 [2021-11-19 15:46:22,100 INFO L354 Elim1Store]: treesize reduction 76, result has 8.4 percent of original size [2021-11-19 15:46:22,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 28 [2021-11-19 15:46:22,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:46:22,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:05,622 INFO L354 Elim1Store]: treesize reduction 719, result has 31.4 percent of original size [2021-11-19 15:47:05,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 65085 treesize of output 21421 [2021-11-19 15:47:05,853 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:05,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21421 treesize of output 21355 [2021-11-19 15:47:06,121 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21355 treesize of output 20457 [2021-11-19 15:47:06,345 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 15:47:06,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224969770] [2021-11-19 15:47:06,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 15:47:06,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140915682] [2021-11-19 15:47:06,349 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-19 15:47:06,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [256119555] [2021-11-19 15:47:06,381 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2021-11-19 15:47:06,381 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 15:47:06,387 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 15:47:06,393 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 15:47:06,395 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 15:47:06,453 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,461 INFO L185 QuantifierPusher]: treesize reduction 5, result has 92.9 percent of original size 65 [2021-11-19 15:47:06,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,472 INFO L185 QuantifierPusher]: treesize reduction 5, result has 92.9 percent of original size 65 [2021-11-19 15:47:06,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,605 INFO L180 QuantifierPusher]: treesize reduction 21, result has 89.1 percent of original size [2021-11-19 15:47:06,607 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:06,608 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,609 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:06,610 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,611 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-19 15:47:06,612 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:06,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,613 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-19 15:47:06,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 86 [2021-11-19 15:47:06,615 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:06,616 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,617 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-11-19 15:47:06,618 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:06,619 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,620 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 15:47:06,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-11-19 15:47:06,631 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_8|], 22=[|v_#valid_20|]} [2021-11-19 15:47:06,642 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-19 15:47:06,643 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,643 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:47:06,644 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,645 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:47:06,645 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:06,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,666 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 33 treesize of output 43 [2021-11-19 15:47:06,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 15:47:06,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 15:47:06,671 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:06,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,680 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,766 INFO L354 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2021-11-19 15:47:06,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 61 [2021-11-19 15:47:06,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 15:47:06,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 15:47:06,775 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:06,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,788 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-11-19 15:47:06,789 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-19 15:47:06,789 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:286, output treesize:141 [2021-11-19 15:47:06,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,798 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:06,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-19 15:47:06,802 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-11-19 15:47:06,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:06,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2021-11-19 15:47:06,821 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,823 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-19 15:47:06,824 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,825 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-19 15:47:06,825 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:06,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,833 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-11-19 15:47:06,841 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 15:47:06,841 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:168, output treesize:155 [2021-11-19 15:47:06,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:06,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,940 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:06,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,945 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:06,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 15:47:06,948 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:06,949 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,950 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-19 15:47:06,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 383 [2021-11-19 15:47:06,955 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:06,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:06,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-11-19 15:47:06,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 403 [2021-11-19 15:47:07,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:07,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:07,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2021-11-19 15:47:07,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 15:47:07,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,031 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-11-19 15:47:07,031 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:07,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:07,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:07,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:07,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:07,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 65 [2021-11-19 15:47:07,067 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 15:47:07,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 15:47:07,072 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:07,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,124 INFO L180 QuantifierPusher]: treesize reduction 102, result has 78.3 percent of original size [2021-11-19 15:47:07,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-11-19 15:47:07,130 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-19 15:47:07,130 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:505, output treesize:367 [2021-11-19 15:47:07,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,205 INFO L180 QuantifierPusher]: treesize reduction 30, result has 75.4 percent of original size [2021-11-19 15:47:07,207 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,208 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-11-19 15:47:07,209 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-19 15:47:07,217 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,231 INFO L354 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2021-11-19 15:47:07,232 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 1 case distinctions, treesize of input 42 treesize of output 25 [2021-11-19 15:47:07,232 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 15:47:07,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-19 15:47:07,235 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:07,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,238 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,239 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-19 15:47:07,241 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-19 15:47:07,241 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:91, output treesize:73 [2021-11-19 15:47:07,247 INFO L180 QuantifierPusher]: treesize reduction 31, result has 62.2 percent of original size [2021-11-19 15:47:07,249 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-19 15:47:07,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-11-19 15:47:07,258 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,262 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,265 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,266 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:47:07,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-19 15:47:07,274 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:07,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,280 INFO L185 QuantifierPusher]: treesize reduction 5, result has 91.4 percent of original size 53 [2021-11-19 15:47:07,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,287 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,290 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,291 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:47:07,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-19 15:47:07,298 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:07,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,304 INFO L185 QuantifierPusher]: treesize reduction 5, result has 91.4 percent of original size 53 [2021-11-19 15:47:07,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,344 INFO L180 QuantifierPusher]: treesize reduction 99, result has 62.4 percent of original size [2021-11-19 15:47:07,346 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-11-19 15:47:07,352 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,353 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-19 15:47:07,354 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-19 15:47:07,357 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-19 15:47:07,360 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_2], 5=[|v_#memory_int_37|]} [2021-11-19 15:47:07,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:07,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,401 INFO L354 Elim1Store]: treesize reduction 20, result has 47.4 percent of original size [2021-11-19 15:47:07,402 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 1 case distinctions, treesize of input 49 treesize of output 32 [2021-11-19 15:47:07,402 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,403 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 15:47:07,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 15:47:07,405 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:07,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,414 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,475 INFO L354 Elim1Store]: treesize reduction 42, result has 44.0 percent of original size [2021-11-19 15:47:07,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 116 treesize of output 75 [2021-11-19 15:47:07,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,481 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,482 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,484 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:07,487 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:07,489 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,490 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,492 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:47:07,494 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-19 15:47:07,495 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-19 15:47:07,498 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 15:47:07,503 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,521 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,521 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,522 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 15:47:07,523 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,524 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:47:07,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-11-19 15:47:07,530 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_2], 5=[|v_#memory_int_37|]} [2021-11-19 15:47:07,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:07,541 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,572 INFO L354 Elim1Store]: treesize reduction 17, result has 50.0 percent of original size [2021-11-19 15:47:07,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 29 [2021-11-19 15:47:07,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-19 15:47:07,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-19 15:47:07,576 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:07,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,586 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,592 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,599 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,640 INFO L354 Elim1Store]: treesize reduction 38, result has 44.9 percent of original size [2021-11-19 15:47:07,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 71 [2021-11-19 15:47:07,641 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,671 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,672 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,673 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,674 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,675 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 15:47:07,676 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 15:47:07,678 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,680 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,680 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:07,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-19 15:47:07,683 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 15:47:07,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 15:47:07,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,702 INFO L180 QuantifierPusher]: treesize reduction 16, result has 94.3 percent of original size [2021-11-19 15:47:07,705 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,706 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,707 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 15:47:07,708 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,708 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,709 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:47:07,711 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 294 [2021-11-19 15:47:07,714 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_2], 5=[|v_#memory_int_37|]} [2021-11-19 15:47:07,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:07,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,770 INFO L354 Elim1Store]: treesize reduction 17, result has 50.0 percent of original size [2021-11-19 15:47:07,771 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 1 case distinctions, treesize of input 43 treesize of output 29 [2021-11-19 15:47:07,772 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-19 15:47:07,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,774 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-19 15:47:07,775 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:07,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,785 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,791 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,800 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,878 INFO L354 Elim1Store]: treesize reduction 38, result has 44.9 percent of original size [2021-11-19 15:47:07,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 71 [2021-11-19 15:47:07,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,882 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,883 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,885 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 15:47:07,889 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-19 15:47:07,890 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,893 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,895 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:07,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-11-19 15:47:07,897 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-19 15:47:07,900 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-11-19 15:47:07,906 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:07,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:07,939 INFO L180 QuantifierPusher]: treesize reduction 30, result has 94.8 percent of original size [2021-11-19 15:47:07,944 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-19 15:47:07,946 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:07,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:07,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 15:47:07,952 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 631 [2021-11-19 15:47:07,958 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_4, v_prenex_2], 5=[v_prenex_3, |v_#memory_int_37|]} [2021-11-19 15:47:07,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:07,973 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:08,046 INFO L354 Elim1Store]: treesize reduction 17, result has 50.0 percent of original size [2021-11-19 15:47:08,047 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 1 case distinctions, treesize of input 43 treesize of output 29 [2021-11-19 15:47:08,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-19 15:47:08,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-19 15:47:08,050 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:08,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:08,066 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 15:47:08,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:08,126 INFO L354 Elim1Store]: treesize reduction 17, result has 50.0 percent of original size [2021-11-19 15:47:08,126 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 1 case distinctions, treesize of input 43 treesize of output 29 [2021-11-19 15:47:08,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-19 15:47:08,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-19 15:47:08,130 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 15:47:08,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:08,147 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:08,164 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:08,219 INFO L354 Elim1Store]: treesize reduction 38, result has 44.9 percent of original size [2021-11-19 15:47:08,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 106 treesize of output 71 [2021-11-19 15:47:08,221 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,224 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,226 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,228 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,230 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,232 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-19 15:47:08,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-19 15:47:08,236 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,237 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:47:08,240 INFO L185 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size 39 [2021-11-19 15:47:08,240 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-19 15:47:08,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 15:47:08,244 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,246 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,248 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,249 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,250 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:08,252 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:47:08,253 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,254 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,255 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 15:47:08,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-19 15:47:08,257 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,260 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,261 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,263 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,265 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-19 15:47:08,268 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-11-19 15:47:08,268 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,270 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-11-19 15:47:08,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-11-19 15:47:08,272 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,273 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,274 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,277 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:08,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-19 15:47:08,281 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-19 15:47:08,284 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-19 15:47:08,286 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,288 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,288 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-19 15:47:08,291 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,292 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,292 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:08,294 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-11-19 15:47:08,295 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,297 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-11-19 15:47:08,298 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,301 INFO L185 QuantifierPusher]: treesize reduction 4, result has 66.7 percent of original size 8 [2021-11-19 15:47:08,302 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,304 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,305 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:08,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-11-19 15:47:08,309 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,310 INFO L180 QuantifierPusher]: treesize reduction 4, result has 89.7 percent of original size [2021-11-19 15:47:08,311 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-19 15:47:08,312 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 98 [2021-11-19 15:47:08,313 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:08,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:08,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-19 15:47:08,316 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-19 15:47:08,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:08,324 INFO L446 ElimStorePlain]: Different costs {0=[v_arrayElimArr_9], 1=[v_arrayElimArr_10]} [2021-11-19 15:47:09,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:09,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:09,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:09,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:09,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-19 15:47:09,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:09,111 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:09,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:09,115 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 15:47:09,116 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:47:09,118 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-19 15:47:09,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-19 15:47:09,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-11-19 15:47:09,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:09,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:09,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:09,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:09,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:09,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:09,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 15:47:09,138 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 22 for LOIs [2021-11-19 15:47:09,140 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 15:47:17,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 15:47:17,417 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:17,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-19 15:47:17,417 ERROR L172 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2021-11-19 15:47:17,418 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-19 15:47:17,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 15:47:17,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:17,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-19 15:47:17,654 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-19 15:47:17,656 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 15:47:17,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 03:47:17 BoogieIcfgContainer [2021-11-19 15:47:17,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 15:47:17,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 15:47:17,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 15:47:17,675 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 15:47:17,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:46:18" (3/4) ... [2021-11-19 15:47:17,680 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 15:47:17,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 15:47:17,680 INFO L158 Benchmark]: Toolchain (without parser) took 59789.43ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 80.9MB in the beginning and 97.7MB in the end (delta: -16.8MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2021-11-19 15:47:17,681 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:47:17,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.19ms. Allocated memory is still 115.3MB. Free memory was 80.7MB in the beginning and 89.7MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 15:47:17,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.98ms. Allocated memory is still 115.3MB. Free memory was 89.7MB in the beginning and 88.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 15:47:17,682 INFO L158 Benchmark]: Boogie Preprocessor took 27.82ms. Allocated memory is still 115.3MB. Free memory was 88.0MB in the beginning and 86.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 15:47:17,683 INFO L158 Benchmark]: RCFGBuilder took 423.55ms. Allocated memory is still 115.3MB. Free memory was 86.8MB in the beginning and 73.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 15:47:17,684 INFO L158 Benchmark]: TraceAbstraction took 58996.16ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 73.3MB in the beginning and 97.7MB in the end (delta: -24.4MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2021-11-19 15:47:17,684 INFO L158 Benchmark]: Witness Printer took 5.38ms. Allocated memory is still 167.8MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:47:17,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.19ms. Allocated memory is still 115.3MB. Free memory was 80.7MB in the beginning and 89.7MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.98ms. Allocated memory is still 115.3MB. Free memory was 89.7MB in the beginning and 88.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.82ms. Allocated memory is still 115.3MB. Free memory was 88.0MB in the beginning and 86.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 423.55ms. Allocated memory is still 115.3MB. Free memory was 86.8MB in the beginning and 73.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 58996.16ms. Allocated memory was 115.3MB in the beginning and 167.8MB in the end (delta: 52.4MB). Free memory was 73.3MB in the beginning and 97.7MB in the end (delta: -24.4MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Witness Printer took 5.38ms. Allocated memory is still 167.8MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 33]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L37] signed long long ARR_SIZE ; [L41] ARR_SIZE = (signed long long)__VERIFIER_nondet_short() [L42] CALL assume_abort_if_not(ARR_SIZE > 0) [L31] COND TRUE !cond [L42] RET assume_abort_if_not(ARR_SIZE > 0) [L44] int array1[ARR_SIZE] ; [L45] int array2[ARR_SIZE] ; [L46] int count = 0, num = -1; [L47] signed long long sum = 0 ; [L48] int temp ; [L49] short index ; [L51] count=0 [L51] COND TRUE count=0 && index < ARR_SIZE) [L31] COND TRUE !cond [L63] RET assume_abort_if_not(index>=0 && index < ARR_SIZE) [L65] array1[index] = num * (num * count) [L66] EXPR (index % 3 == 0) ? array2[index] : (num * count) [L66] EXPR array2[index] [L66] EXPR (index % 3 == 0) ? array2[index] : (num * count) [L66] array2[index] = (index % 3 == 0) ? array2[index] : (num * count) [L69] temp = __VERIFIER_nondet_int() [L70] COND TRUE temp == 0 [L73] count=0 [L73] COND TRUE count main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs 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 -> 8ae6792b63619c19d32145c9c656ded5ce2ab653945337eaf95cf4eb94965d3b [2021-11-19 15:47:21,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:47:21,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:47:21,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:47:21,106 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:47:21,109 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:47:21,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/array-patterns/array9_pattern.c [2021-11-19 15:47:21,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/data/d84613559/ca6c8d52526d4aa7a6d0fb6cad199dd6/FLAG323e66237 [2021-11-19 15:47:21,963 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:47:21,966 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/sv-benchmarks/c/array-patterns/array9_pattern.c [2021-11-19 15:47:21,975 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/data/d84613559/ca6c8d52526d4aa7a6d0fb6cad199dd6/FLAG323e66237 [2021-11-19 15:47:22,003 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/data/d84613559/ca6c8d52526d4aa7a6d0fb6cad199dd6 [2021-11-19 15:47:22,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:47:22,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:47:22,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:47:22,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:47:22,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:47:22,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e841d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22, skipping insertion in model container [2021-11-19 15:47:22,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:47:22,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:47:22,315 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_928fa44a-9b26-4474-b8c9-0d2192463670/sv-benchmarks/c/array-patterns/array9_pattern.c[1352,1365] [2021-11-19 15:47:22,361 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:47:22,376 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:47:22,399 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_928fa44a-9b26-4474-b8c9-0d2192463670/sv-benchmarks/c/array-patterns/array9_pattern.c[1352,1365] [2021-11-19 15:47:22,456 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:47:22,480 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:47:22,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22 WrapperNode [2021-11-19 15:47:22,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:47:22,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:47:22,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:47:22,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:47:22,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,548 INFO L137 Inliner]: procedures = 18, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2021-11-19 15:47:22,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:47:22,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:47:22,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:47:22,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:47:22,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:47:22,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:47:22,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:47:22,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:47:22,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (1/1) ... [2021-11-19 15:47:22,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:47:22,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:47:22,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:47:22,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:47:22,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:47:22,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:47:22,726 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 15:47:22,727 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 15:47:22,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:47:22,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:47:22,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:47:22,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:47:22,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:47:22,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:47:22,857 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:47:22,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:47:23,301 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:47:23,309 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:47:23,309 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-19 15:47:23,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:47:23 BoogieIcfgContainer [2021-11-19 15:47:23,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:47:23,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:47:23,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:47:23,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:47:23,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:47:22" (1/3) ... [2021-11-19 15:47:23,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b6c751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:47:23, skipping insertion in model container [2021-11-19 15:47:23,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:47:22" (2/3) ... [2021-11-19 15:47:23,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b6c751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:47:23, skipping insertion in model container [2021-11-19 15:47:23,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:47:23" (3/3) ... [2021-11-19 15:47:23,324 INFO L111 eAbstractionObserver]: Analyzing ICFG array9_pattern.c [2021-11-19 15:47:23,331 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:47:23,331 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 15:47:23,393 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:47:23,401 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 [2021-11-19 15:47:23,402 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 15:47:23,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 15:47:23,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-19 15:47:23,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:23,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:23,429 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:23,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:23,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1127586545, now seen corresponding path program 1 times [2021-11-19 15:47:23,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:23,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239049051] [2021-11-19 15:47:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:23,460 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:23,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:23,472 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:23,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:47:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:23,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 15:47:23,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:47:23,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:23,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:47:23,726 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:23,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239049051] [2021-11-19 15:47:23,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239049051] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:47:23,728 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:47:23,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 15:47:23,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015869513] [2021-11-19 15:47:23,731 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:23,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 15:47:23,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:23,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 15:47:23,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 15:47:23,773 INFO L87 Difference]: Start difference. First operand has 28 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 15:47:23,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:23,798 INFO L93 Difference]: Finished difference Result 53 states and 74 transitions. [2021-11-19 15:47:23,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 15:47:23,800 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-11-19 15:47:23,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:23,809 INFO L225 Difference]: With dead ends: 53 [2021-11-19 15:47:23,809 INFO L226 Difference]: Without dead ends: 24 [2021-11-19 15:47:23,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 15:47:23,817 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:23,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 15:47:23,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-19 15:47:23,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-11-19 15:47:23,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 15:47:23,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-11-19 15:47:23,863 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 16 [2021-11-19 15:47:23,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:23,863 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-11-19 15:47:23,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 15:47:23,864 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-19 15:47:23,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 15:47:23,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:23,867 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:23,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:24,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:24,081 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:24,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:24,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1008571545, now seen corresponding path program 1 times [2021-11-19 15:47:24,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:24,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280844336] [2021-11-19 15:47:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:24,084 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:24,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:24,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:24,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:47:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:24,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 15:47:24,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:25,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:47:25,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:25,862 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:47:25,863 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:47:25,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280844336] [2021-11-19 15:47:25,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280844336] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:47:25,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [699105262] [2021-11-19 15:47:25,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:25,867 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:47:25,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:47:25,872 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:47:25,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-19 15:47:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:26,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 15:47:26,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:26,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:47:26,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:47:26,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [699105262] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:47:26,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029799173] [2021-11-19 15:47:26,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:26,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 15:47:26,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:47:26,959 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 15:47:26,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 15:47:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:27,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 15:47:27,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:27,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:47:27,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:47:27,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 15:47:27,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029799173] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 15:47:27,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 15:47:27,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 8, 8, 6] total 20 [2021-11-19 15:47:27,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665665963] [2021-11-19 15:47:27,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 15:47:27,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 15:47:27,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:47:27,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 15:47:27,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2021-11-19 15:47:27,618 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 15:47:28,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:47:28,061 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2021-11-19 15:47:28,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 15:47:28,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2021-11-19 15:47:28,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:47:28,065 INFO L225 Difference]: With dead ends: 50 [2021-11-19 15:47:28,065 INFO L226 Difference]: Without dead ends: 32 [2021-11-19 15:47:28,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 124 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:47:28,068 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 29 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:47:28,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 57 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 15:47:28,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-19 15:47:28,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2021-11-19 15:47:28,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 15:47:28,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-11-19 15:47:28,078 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2021-11-19 15:47:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:47:28,078 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-11-19 15:47:28,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 15:47:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-11-19 15:47:28,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-19 15:47:28,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:47:28,081 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:47:28,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-11-19 15:47:28,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:47:28,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 15:47:28,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:47:28,685 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:47:28,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:47:28,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1890411897, now seen corresponding path program 1 times [2021-11-19 15:47:28,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:47:28,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062580133] [2021-11-19 15:47:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:47:28,687 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:47:28,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:47:28,694 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:47:28,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_928fa44a-9b26-4474-b8c9-0d2192463670/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:47:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:47:28,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-19 15:47:28,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:47:29,119 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 11 treesize of output 9 [2021-11-19 15:47:29,263 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 39 treesize of output 23 [2021-11-19 15:47:30,989 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 15:47:30,991 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 31 treesize of output 26 [2021-11-19 15:47:31,485 INFO L354 Elim1Store]: treesize reduction 131, result has 10.9 percent of original size [2021-11-19 15:47:31,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 43 [2021-11-19 15:47:32,043 INFO L354 Elim1Store]: treesize reduction 58, result has 15.9 percent of original size [2021-11-19 15:47:32,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 33 [2021-11-19 15:47:32,414 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 15:47:32,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:48:02,086 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~#array1~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#array1~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~index~0#1_BEFORE_CALL_1| (_ BitVec 16)) (|v_ULTIMATE.start_main_~#array2~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~count~0#1_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~sum~0#1_BEFORE_CALL_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~#array2~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (let ((.cse1 ((_ sign_extend 16) |v_ULTIMATE.start_main_~index~0#1_BEFORE_CALL_1|))) (or (bvsle (let ((.cse0 (store (select |c_#memory_int| |v_ULTIMATE.start_main_~#array1~0#1.base_BEFORE_CALL_2|) (bvadd |v_ULTIMATE.start_main_~#array1~0#1.offset_BEFORE_CALL_2| (bvmul .cse1 (_ bv4 32))) (bvmul |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_2| (bvmul |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_2| |v_ULTIMATE.start_main_~count~0#1_BEFORE_CALL_2|))))) (bvadd (bvmul ((_ sign_extend 32) (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#array1~0#1.base_BEFORE_CALL_2| .cse0) |v_ULTIMATE.start_main_~#array2~0#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_main_~#array2~0#1.offset_BEFORE_CALL_2|)) (_ bv3 64)) (bvmul |v_ULTIMATE.start_main_~sum~0#1_BEFORE_CALL_6| (_ bv3 64)) (bvmul ((_ sign_extend 32) (select .cse0 |v_ULTIMATE.start_main_~#array1~0#1.offset_BEFORE_CALL_2|)) (_ bv3 64)))) (bvadd (_ bv2 64) c_~ARR_SIZE~0)) (exists ((|ULTIMATE.start_main_~index~0#1| (_ BitVec 16))) (let ((.cse2 ((_ sign_extend 16) |ULTIMATE.start_main_~index~0#1|))) (and (bvslt ((_ sign_extend 32) .cse2) c_~ARR_SIZE~0) (bvsge .cse2 (_ bv0 32)) (not (bvsle (let ((.cse3 (store (select |c_#memory_int| |v_ULTIMATE.start_main_~#array1~0#1.base_BEFORE_CALL_2|) (bvadd (bvmul .cse2 (_ bv4 32)) |v_ULTIMATE.start_main_~#array1~0#1.offset_BEFORE_CALL_2|) (bvmul |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_2| (bvmul |v_ULTIMATE.start_main_~num~0#1_BEFORE_CALL_2| |v_ULTIMATE.start_main_~count~0#1_BEFORE_CALL_2|))))) (bvadd (bvmul ((_ sign_extend 32) (select (select (store |c_#memory_int| |v_ULTIMATE.start_main_~#array1~0#1.base_BEFORE_CALL_2| .cse3) |v_ULTIMATE.start_main_~#array2~0#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_main_~#array2~0#1.offset_BEFORE_CALL_2|)) (_ bv3 64)) (bvmul ((_ sign_extend 32) (select .cse3 |v_ULTIMATE.start_main_~#array1~0#1.offset_BEFORE_CALL_2|)) (_ bv3 64)) (bvmul |v_ULTIMATE.start_main_~sum~0#1_BEFORE_CALL_6| (_ bv3 64)))) (bvadd (_ bv2 64) c_~ARR_SIZE~0)))))) (let ((.cse5 (bvsge .cse1 (_ bv0 32))) (.cse4 (bvslt ((_ sign_extend 32) .cse1) c_~ARR_SIZE~0))) (and (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) (and .cse4 .cse5)) (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32))) (not .cse5) (not .cse4))))))) is different from false [2021-11-19 15:49:19,415 WARN L227 SmtUtils]: Spent 10.03s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:49:36,268 INFO L354 Elim1Store]: treesize reduction 90, result has 37.1 percent of original size [2021-11-19 15:49:36,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 1423 treesize of output 891 [2021-11-19 15:49:36,412 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:49:36,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 891 treesize of output 861 [2021-11-19 15:49:36,820 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:49:36,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2021-11-19 15:49:37,920 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 4 [2021-11-19 15:50:34,625 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 15:50:34,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 361 treesize of output 399