./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label43.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label43.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8 --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 454dd493ee9dcdf0cdb95ddac4747f0f0acba84f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:29:46,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:29:46,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:29:46,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:29:46,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:29:46,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:29:46,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:29:46,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:29:46,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:29:46,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:29:46,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:29:46,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:29:46,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:29:46,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:29:46,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:29:46,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:29:46,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:29:46,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:29:46,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:29:46,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:29:46,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:29:46,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:29:46,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:29:46,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:29:46,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:29:46,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:29:46,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:29:46,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:29:46,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:29:46,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:29:46,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:29:46,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:29:46,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:29:46,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:29:46,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:29:46,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:29:46,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:29:46,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:29:46,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:29:46,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:29:46,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:29:46,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:29:46,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:29:46,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:29:46,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:29:46,486 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:29:46,486 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:29:46,487 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:29:46,487 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:29:46,487 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:29:46,487 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:29:46,488 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:29:46,489 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:29:46,489 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:29:46,489 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:29:46,489 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:29:46,490 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:29:46,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:29:46,491 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:29:46,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:29:46,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:29:46,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:29:46,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:29:46,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:29:46,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:29:46,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:29:46,493 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:29:46,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:29:46,493 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:29:46,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:29:46,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:29:46,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:29:46,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:29:46,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:29:46,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:29:46,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:29:46,495 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:29:46,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:29:46,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:29:46,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:29:46,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:29:46,497 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_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 454dd493ee9dcdf0cdb95ddac4747f0f0acba84f [2021-10-13 07:29:46,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:29:46,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:29:46,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:29:46,772 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:29:46,773 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:29:46,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem01_label43.c [2021-10-13 07:29:46,850 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/data/ad951bab9/8fe0933dfa96497a9099e6d077bd74b5/FLAG65b1188d8 [2021-10-13 07:29:47,409 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:29:47,410 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/sv-benchmarks/c/eca-rers2012/Problem01_label43.c [2021-10-13 07:29:47,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/data/ad951bab9/8fe0933dfa96497a9099e6d077bd74b5/FLAG65b1188d8 [2021-10-13 07:29:47,690 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/data/ad951bab9/8fe0933dfa96497a9099e6d077bd74b5 [2021-10-13 07:29:47,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:29:47,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:29:47,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:29:47,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:29:47,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:29:47,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:29:47" (1/1) ... [2021-10-13 07:29:47,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438744b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:47, skipping insertion in model container [2021-10-13 07:29:47,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:29:47" (1/1) ... [2021-10-13 07:29:47,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:29:47,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:29:48,176 WARN L228 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_4bdf5b8a-4d77-4709-9558-c0875360df37/sv-benchmarks/c/eca-rers2012/Problem01_label43.c[21463,21476] [2021-10-13 07:29:48,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:29:48,220 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:29:48,354 WARN L228 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_4bdf5b8a-4d77-4709-9558-c0875360df37/sv-benchmarks/c/eca-rers2012/Problem01_label43.c[21463,21476] [2021-10-13 07:29:48,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:29:48,375 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:29:48,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48 WrapperNode [2021-10-13 07:29:48,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:29:48,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:29:48,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:29:48,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:29:48,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (1/1) ... [2021-10-13 07:29:48,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (1/1) ... [2021-10-13 07:29:48,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:29:48,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:29:48,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:29:48,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:29:48,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (1/1) ... [2021-10-13 07:29:48,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (1/1) ... [2021-10-13 07:29:48,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (1/1) ... [2021-10-13 07:29:48,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (1/1) ... [2021-10-13 07:29:48,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (1/1) ... [2021-10-13 07:29:48,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (1/1) ... [2021-10-13 07:29:48,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (1/1) ... [2021-10-13 07:29:48,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:29:48,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:29:48,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:29:48,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:29:48,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (1/1) ... [2021-10-13 07:29:48,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:29:48,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:29:48,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:29:48,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:29:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:29:48,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:29:48,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:29:48,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:29:50,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:29:50,403 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:29:50,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:29:50 BoogieIcfgContainer [2021-10-13 07:29:50,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:29:50,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:29:50,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:29:50,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:29:50,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:29:47" (1/3) ... [2021-10-13 07:29:50,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afba82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:29:50, skipping insertion in model container [2021-10-13 07:29:50,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:29:48" (2/3) ... [2021-10-13 07:29:50,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afba82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:29:50, skipping insertion in model container [2021-10-13 07:29:50,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:29:50" (3/3) ... [2021-10-13 07:29:50,415 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label43.c [2021-10-13 07:29:50,426 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:29:50,426 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:29:50,489 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:29:50,499 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, mConcurrency=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 [2021-10-13 07:29:50,499 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:29:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 74 states have (on average 1.945945945945946) internal successors, (144), 75 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:50,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-10-13 07:29:50,525 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:50,526 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:50,526 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:50,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:50,530 INFO L82 PathProgramCache]: Analyzing trace with hash 379029127, now seen corresponding path program 1 times [2021-10-13 07:29:50,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:50,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200477102] [2021-10-13 07:29:50,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:50,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:50,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:29:50,952 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:50,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200477102] [2021-10-13 07:29:50,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200477102] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:50,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:50,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:29:50,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364716019] [2021-10-13 07:29:50,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:29:50,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:50,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:29:50,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:50,981 INFO L87 Difference]: Start difference. First operand has 76 states, 74 states have (on average 1.945945945945946) internal successors, (144), 75 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:51,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:51,500 INFO L93 Difference]: Finished difference Result 224 states and 428 transitions. [2021-10-13 07:29:51,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:29:51,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-10-13 07:29:51,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:51,518 INFO L225 Difference]: With dead ends: 224 [2021-10-13 07:29:51,519 INFO L226 Difference]: Without dead ends: 145 [2021-10-13 07:29:51,523 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:51,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-10-13 07:29:51,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2021-10-13 07:29:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.7569444444444444) internal successors, (253), 144 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:51,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 253 transitions. [2021-10-13 07:29:51,598 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 253 transitions. Word has length 71 [2021-10-13 07:29:51,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:51,599 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 253 transitions. [2021-10-13 07:29:51,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:51,600 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 253 transitions. [2021-10-13 07:29:51,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-13 07:29:51,606 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:51,606 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:51,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:29:51,607 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:51,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:51,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1189479233, now seen corresponding path program 1 times [2021-10-13 07:29:51,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:51,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295903927] [2021-10-13 07:29:51,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:51,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:51,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 07:29:51,741 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:51,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295903927] [2021-10-13 07:29:51,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295903927] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:51,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:51,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:29:51,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561736203] [2021-10-13 07:29:51,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:29:51,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:51,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:29:51,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:51,744 INFO L87 Difference]: Start difference. First operand 145 states and 253 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:52,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:52,147 INFO L93 Difference]: Finished difference Result 431 states and 756 transitions. [2021-10-13 07:29:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:29:52,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-10-13 07:29:52,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:52,152 INFO L225 Difference]: With dead ends: 431 [2021-10-13 07:29:52,152 INFO L226 Difference]: Without dead ends: 287 [2021-10-13 07:29:52,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:52,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-10-13 07:29:52,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2021-10-13 07:29:52,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.632867132867133) internal successors, (467), 286 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:52,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 467 transitions. [2021-10-13 07:29:52,173 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 467 transitions. Word has length 75 [2021-10-13 07:29:52,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:52,174 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 467 transitions. [2021-10-13 07:29:52,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:52,174 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 467 transitions. [2021-10-13 07:29:52,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-13 07:29:52,178 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:52,178 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:52,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:29:52,179 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:52,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:52,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1933821963, now seen corresponding path program 1 times [2021-10-13 07:29:52,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:52,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594364649] [2021-10-13 07:29:52,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:52,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 07:29:52,310 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:52,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594364649] [2021-10-13 07:29:52,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594364649] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:52,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:52,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:29:52,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981969239] [2021-10-13 07:29:52,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:29:52,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:52,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:29:52,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:52,313 INFO L87 Difference]: Start difference. First operand 287 states and 467 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:52,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:52,655 INFO L93 Difference]: Finished difference Result 715 states and 1184 transitions. [2021-10-13 07:29:52,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:29:52,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-10-13 07:29:52,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:52,659 INFO L225 Difference]: With dead ends: 715 [2021-10-13 07:29:52,659 INFO L226 Difference]: Without dead ends: 429 [2021-10-13 07:29:52,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:52,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-10-13 07:29:52,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 358. [2021-10-13 07:29:52,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 357 states have (on average 1.6442577030812324) internal successors, (587), 357 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:52,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 587 transitions. [2021-10-13 07:29:52,679 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 587 transitions. Word has length 105 [2021-10-13 07:29:52,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:52,680 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 587 transitions. [2021-10-13 07:29:52,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:52,680 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 587 transitions. [2021-10-13 07:29:52,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-10-13 07:29:52,684 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:52,684 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:52,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:29:52,685 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:52,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:52,685 INFO L82 PathProgramCache]: Analyzing trace with hash 218749631, now seen corresponding path program 1 times [2021-10-13 07:29:52,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:52,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830578492] [2021-10-13 07:29:52,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:52,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:52,738 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-13 07:29:52,738 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:52,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830578492] [2021-10-13 07:29:52,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830578492] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:52,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:52,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:29:52,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778958935] [2021-10-13 07:29:52,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:29:52,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:52,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:29:52,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:52,743 INFO L87 Difference]: Start difference. First operand 358 states and 587 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:52,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:52,990 INFO L93 Difference]: Finished difference Result 715 states and 1173 transitions. [2021-10-13 07:29:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:29:52,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-10-13 07:29:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:52,994 INFO L225 Difference]: With dead ends: 715 [2021-10-13 07:29:52,994 INFO L226 Difference]: Without dead ends: 358 [2021-10-13 07:29:52,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:52,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-10-13 07:29:53,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2021-10-13 07:29:53,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 357 states have (on average 1.6274509803921569) internal successors, (581), 357 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 581 transitions. [2021-10-13 07:29:53,008 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 581 transitions. Word has length 109 [2021-10-13 07:29:53,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:53,008 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 581 transitions. [2021-10-13 07:29:53,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,009 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 581 transitions. [2021-10-13 07:29:53,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-13 07:29:53,012 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:53,013 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:53,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 07:29:53,013 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:53,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:53,014 INFO L82 PathProgramCache]: Analyzing trace with hash 674883319, now seen corresponding path program 1 times [2021-10-13 07:29:53,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:53,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881855384] [2021-10-13 07:29:53,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:53,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 07:29:53,072 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:53,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881855384] [2021-10-13 07:29:53,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881855384] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:53,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:53,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:29:53,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885925033] [2021-10-13 07:29:53,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:29:53,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:53,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:29:53,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:53,076 INFO L87 Difference]: Start difference. First operand 358 states and 581 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:53,388 INFO L93 Difference]: Finished difference Result 857 states and 1369 transitions. [2021-10-13 07:29:53,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:29:53,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-10-13 07:29:53,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:53,392 INFO L225 Difference]: With dead ends: 857 [2021-10-13 07:29:53,392 INFO L226 Difference]: Without dead ends: 500 [2021-10-13 07:29:53,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:53,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-10-13 07:29:53,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2021-10-13 07:29:53,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 499 states have (on average 1.5210420841683367) internal successors, (759), 499 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 759 transitions. [2021-10-13 07:29:53,422 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 759 transitions. Word has length 113 [2021-10-13 07:29:53,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:53,423 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 759 transitions. [2021-10-13 07:29:53,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,423 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 759 transitions. [2021-10-13 07:29:53,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-13 07:29:53,425 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:29:53,425 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:29:53,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 07:29:53,426 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:29:53,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:29:53,426 INFO L82 PathProgramCache]: Analyzing trace with hash -692377931, now seen corresponding path program 1 times [2021-10-13 07:29:53,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:29:53,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911001739] [2021-10-13 07:29:53,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:29:53,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:29:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:29:53,472 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-13 07:29:53,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:29:53,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911001739] [2021-10-13 07:29:53,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911001739] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:29:53,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:29:53,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:29:53,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306170943] [2021-10-13 07:29:53,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:29:53,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:29:53,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:29:53,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:53,475 INFO L87 Difference]: Start difference. First operand 500 states and 759 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:29:53,820 INFO L93 Difference]: Finished difference Result 1352 states and 2015 transitions. [2021-10-13 07:29:53,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:29:53,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-10-13 07:29:53,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:29:53,821 INFO L225 Difference]: With dead ends: 1352 [2021-10-13 07:29:53,821 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:29:53,823 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:29:53,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:29:53,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:29:53,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:29:53,824 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 122 [2021-10-13 07:29:53,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:29:53,824 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:29:53,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:29:53,825 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:29:53,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:29:53,828 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:29:53,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 07:29:53,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:29:53,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:29:53,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:29:53,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:29:53,896 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2021-10-13 07:29:53,897 INFO L857 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2021-10-13 07:29:53,897 INFO L857 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2021-10-13 07:29:53,897 INFO L857 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2021-10-13 07:29:53,897 INFO L857 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2021-10-13 07:29:53,897 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2021-10-13 07:29:53,898 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2021-10-13 07:29:53,898 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2021-10-13 07:29:53,898 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2021-10-13 07:29:53,898 INFO L857 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2021-10-13 07:29:53,898 INFO L857 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2021-10-13 07:29:53,898 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2021-10-13 07:29:53,899 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2021-10-13 07:29:53,899 INFO L857 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2021-10-13 07:29:53,899 INFO L857 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2021-10-13 07:29:53,899 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2021-10-13 07:29:53,899 INFO L857 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2021-10-13 07:29:53,899 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2021-10-13 07:29:53,900 INFO L857 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2021-10-13 07:29:53,900 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2021-10-13 07:29:53,900 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2021-10-13 07:29:53,900 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2021-10-13 07:29:53,900 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2021-10-13 07:29:53,900 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2021-10-13 07:29:53,900 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2021-10-13 07:29:53,901 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2021-10-13 07:29:53,901 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2021-10-13 07:29:53,901 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2021-10-13 07:29:53,901 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2021-10-13 07:29:53,901 INFO L857 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2021-10-13 07:29:53,901 INFO L857 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2021-10-13 07:29:53,902 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2021-10-13 07:29:53,902 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2021-10-13 07:29:53,902 INFO L857 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2021-10-13 07:29:53,902 INFO L857 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2021-10-13 07:29:53,902 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2021-10-13 07:29:53,902 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2021-10-13 07:29:53,903 INFO L857 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2021-10-13 07:29:53,903 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2021-10-13 07:29:53,903 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:29:53,903 INFO L857 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2021-10-13 07:29:53,903 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2021-10-13 07:29:53,903 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2021-10-13 07:29:53,904 INFO L853 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (or (and (= ~a21~0 1) (<= 15 ~a8~0)) (<= ~a16~0 5) (= ~a20~0 1)) [2021-10-13 07:29:53,904 INFO L857 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2021-10-13 07:29:53,904 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2021-10-13 07:29:53,904 INFO L857 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2021-10-13 07:29:53,904 INFO L857 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2021-10-13 07:29:53,904 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2021-10-13 07:29:53,905 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2021-10-13 07:29:53,905 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2021-10-13 07:29:53,908 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:29:53,908 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2021-10-13 07:29:53,909 INFO L860 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2021-10-13 07:29:53,909 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2021-10-13 07:29:53,909 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2021-10-13 07:29:53,909 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2021-10-13 07:29:53,909 INFO L857 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2021-10-13 07:29:53,909 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2021-10-13 07:29:53,910 INFO L857 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2021-10-13 07:29:53,910 INFO L857 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2021-10-13 07:29:53,910 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2021-10-13 07:29:53,910 INFO L857 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2021-10-13 07:29:53,910 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2021-10-13 07:29:53,910 INFO L857 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2021-10-13 07:29:53,910 INFO L857 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2021-10-13 07:29:53,911 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2021-10-13 07:29:53,911 INFO L853 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (or (and (= ~a21~0 1) (<= 15 ~a8~0)) (<= ~a16~0 5) (= ~a20~0 1)) [2021-10-13 07:29:53,911 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2021-10-13 07:29:53,911 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 570) no Hoare annotation was computed. [2021-10-13 07:29:53,911 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2021-10-13 07:29:53,911 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2021-10-13 07:29:53,912 INFO L857 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2021-10-13 07:29:53,912 INFO L857 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2021-10-13 07:29:53,912 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2021-10-13 07:29:53,912 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2021-10-13 07:29:53,917 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:29:53,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:29:53 BoogieIcfgContainer [2021-10-13 07:29:53,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:29:53,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:29:53,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:29:53,932 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:29:53,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:29:50" (3/4) ... [2021-10-13 07:29:53,935 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:29:53,976 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 108 nodes and edges [2021-10-13 07:29:53,983 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-13 07:29:53,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 07:29:53,986 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:29:54,143 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:29:54,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:29:54,145 INFO L168 Benchmark]: Toolchain (without parser) took 6445.50 ms. Allocated memory was 98.6 MB in the beginning and 176.2 MB in the end (delta: 77.6 MB). Free memory was 63.1 MB in the beginning and 85.0 MB in the end (delta: -22.0 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:54,145 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:29:54,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.43 ms. Allocated memory is still 98.6 MB. Free memory was 62.9 MB in the beginning and 56.7 MB in the end (delta: 6.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:54,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.34 ms. Allocated memory is still 98.6 MB. Free memory was 56.7 MB in the beginning and 51.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:54,147 INFO L168 Benchmark]: Boogie Preprocessor took 115.75 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 51.1 MB in the beginning and 92.0 MB in the end (delta: -41.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:54,147 INFO L168 Benchmark]: RCFGBuilder took 1803.07 ms. Allocated memory is still 119.5 MB. Free memory was 92.0 MB in the beginning and 81.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:54,148 INFO L168 Benchmark]: TraceAbstraction took 3523.41 ms. Allocated memory was 119.5 MB in the beginning and 176.2 MB in the end (delta: 56.6 MB). Free memory was 80.1 MB in the beginning and 100.8 MB in the end (delta: -20.6 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:54,148 INFO L168 Benchmark]: Witness Printer took 211.55 ms. Allocated memory is still 176.2 MB. Free memory was 100.8 MB in the beginning and 85.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:54,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 667.43 ms. Allocated memory is still 98.6 MB. Free memory was 62.9 MB in the beginning and 56.7 MB in the end (delta: 6.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.34 ms. Allocated memory is still 98.6 MB. Free memory was 56.7 MB in the beginning and 51.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.75 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 51.1 MB in the beginning and 92.0 MB in the end (delta: -41.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1803.07 ms. Allocated memory is still 119.5 MB. Free memory was 92.0 MB in the beginning and 81.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3523.41 ms. Allocated memory was 119.5 MB in the beginning and 176.2 MB in the end (delta: 56.6 MB). Free memory was 80.1 MB in the beginning and 100.8 MB in the end (delta: -20.6 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.1 GB. * Witness Printer took 211.55 ms. Allocated memory is still 176.2 MB. Free memory was 100.8 MB in the beginning and 85.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 570]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3428.8ms, OverallIterations: 6, TraceHistogramMax: 5, EmptinessCheckTime: 28.1ms, AutomataDifference: 2240.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 66.4ms, InitialAbstractionConstructionTime: 16.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 200 SDtfs, 348 SDslu, 23 SDs, 0 SdLazy, 1213 SolverSat, 393 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1500.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=500occurred in iteration=5, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 138.4ms AutomataMinimizationTime, 6 MinimizatonAttempts, 71 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 29 NumberOfFragments, 29 HoareAnnotationTreeSize, 3 FomulaSimplifications, 318 FormulaSimplificationTreeSizeReduction, 41.1ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 17.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 61.8ms SsaConstructionTime, 181.9ms SatisfiabilityAnalysisTime, 500.6ms InterpolantComputationTime, 595 NumberOfCodeBlocks, 595 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 589 ConstructedInterpolants, 0 QuantifiedInterpolants, 1101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 235/235 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: ((a21 == 1 && 15 <= a8) || a16 <= 5) || a20 == 1 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((a21 == 1 && 15 <= a8) || a16 <= 5) || a20 == 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:29:54,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdf5b8a-4d77-4709-9558-c0875360df37/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...