./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label56.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label56.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 7b93c3f7fecac47558d01f2a0c93696ea48f2ebbd5c30f43df88a8759c531651 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:22,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:22,810 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:30:22,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:22,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:22,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:22,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:22,848 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:22,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:22,850 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:22,851 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:22,851 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:22,852 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:22,853 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:30:22,854 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:22,854 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:22,855 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:30:22,856 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:30:22,856 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:22,857 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:30:22,858 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:30:22,858 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:30:22,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:22,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:22,860 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:30:22,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:30:22,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:30:22,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:22,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:22,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:22,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:22,864 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:30:22,865 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:22,865 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:22,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:22,866 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:22,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:22,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:22,868 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:22,869 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:22,869 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:22,870 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:30:22,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:30:22,871 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:22,871 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:22,872 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:22,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:22,873 INFO L153 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_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b93c3f7fecac47558d01f2a0c93696ea48f2ebbd5c30f43df88a8759c531651 [2023-11-23 21:30:23,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:23,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:23,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:23,215 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:23,216 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:23,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/eca-rers2012/Problem01_label56.c [2023-11-23 21:30:26,511 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:26,879 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:26,880 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/sv-benchmarks/c/eca-rers2012/Problem01_label56.c [2023-11-23 21:30:26,895 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/data/b7ab5bdcf/002eff0da43c451593cba5f34f5def0d/FLAG09b52e424 [2023-11-23 21:30:26,922 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/data/b7ab5bdcf/002eff0da43c451593cba5f34f5def0d [2023-11-23 21:30:26,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:26,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:26,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:26,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:26,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:26,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:26" (1/1) ... [2023-11-23 21:30:26,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a17fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:26, skipping insertion in model container [2023-11-23 21:30:26,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:26" (1/1) ... [2023-11-23 21:30:27,008 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:27,345 WARN L240 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_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/sv-benchmarks/c/eca-rers2012/Problem01_label56.c[15002,15015] [2023-11-23 21:30:27,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:27,462 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:27,583 WARN L240 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_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/sv-benchmarks/c/eca-rers2012/Problem01_label56.c[15002,15015] [2023-11-23 21:30:27,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:27,623 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:27,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27 WrapperNode [2023-11-23 21:30:27,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:27,625 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:27,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:27,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:27,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,789 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 658 [2023-11-23 21:30:27,790 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:27,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:27,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:27,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:27,802 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:27,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:27,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:27,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:27,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (1/1) ... [2023-11-23 21:30:27,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:27,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:27,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:27,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:30:28,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:28,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:28,120 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:28,123 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:29,284 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:29,575 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:29,575 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:30:29,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:29 BoogieIcfgContainer [2023-11-23 21:30:29,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:29,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:29,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:29,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:29,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:26" (1/3) ... [2023-11-23 21:30:29,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4332e7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:29, skipping insertion in model container [2023-11-23 21:30:29,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:27" (2/3) ... [2023-11-23 21:30:29,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4332e7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:29, skipping insertion in model container [2023-11-23 21:30:29,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:29" (3/3) ... [2023-11-23 21:30:29,593 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label56.c [2023-11-23 21:30:29,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:29,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:29,675 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:29,681 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6af135b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:29,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:29,686 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) [2023-11-23 21:30:29,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 21:30:29,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:29,698 INFO L195 NwaCegarLoop]: 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] [2023-11-23 21:30:29,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:29,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:29,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1230111540, now seen corresponding path program 1 times [2023-11-23 21:30:29,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:29,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810633929] [2023-11-23 21:30:29,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:29,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:30,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:30,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:30,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810633929] [2023-11-23 21:30:30,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810633929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:30,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:30,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:30:30,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440663481] [2023-11-23 21:30:30,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:30,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:30,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:30,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:30,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:30,329 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) [2023-11-23 21:30:30,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:30,852 INFO L93 Difference]: Finished difference Result 224 states and 428 transitions. [2023-11-23 21:30:30,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:30,855 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 [2023-11-23 21:30:30,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:30,873 INFO L225 Difference]: With dead ends: 224 [2023-11-23 21:30:30,873 INFO L226 Difference]: Without dead ends: 145 [2023-11-23 21:30:30,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:30,881 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:30,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 29 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:30:30,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-23 21:30:30,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2023-11-23 21:30:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.7986111111111112) internal successors, (259), 144 states have internal predecessors, (259), 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) [2023-11-23 21:30:30,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 259 transitions. [2023-11-23 21:30:30,945 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 259 transitions. Word has length 71 [2023-11-23 21:30:30,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:30,946 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 259 transitions. [2023-11-23 21:30:30,947 INFO L496 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) [2023-11-23 21:30:30,947 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 259 transitions. [2023-11-23 21:30:30,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 21:30:30,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:30,951 INFO L195 NwaCegarLoop]: 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, 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] [2023-11-23 21:30:30,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:30:30,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:30,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:30,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2025704116, now seen corresponding path program 1 times [2023-11-23 21:30:30,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:30,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830281975] [2023-11-23 21:30:30,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:30,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:31,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:31,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:31,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830281975] [2023-11-23 21:30:31,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830281975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:31,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:31,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:30:31,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385992602] [2023-11-23 21:30:31,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:31,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:31,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:31,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:31,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:31,061 INFO L87 Difference]: Start difference. First operand 145 states and 259 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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) [2023-11-23 21:30:31,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:31,520 INFO L93 Difference]: Finished difference Result 431 states and 774 transitions. [2023-11-23 21:30:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:31,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 76 [2023-11-23 21:30:31,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:31,523 INFO L225 Difference]: With dead ends: 431 [2023-11-23 21:30:31,524 INFO L226 Difference]: Without dead ends: 287 [2023-11-23 21:30:31,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:31,527 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 112 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:31,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 25 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:30:31,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-23 21:30:31,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2023-11-23 21:30:31,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.6783216783216783) internal successors, (480), 286 states have internal predecessors, (480), 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) [2023-11-23 21:30:31,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 480 transitions. [2023-11-23 21:30:31,550 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 480 transitions. Word has length 76 [2023-11-23 21:30:31,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:31,551 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 480 transitions. [2023-11-23 21:30:31,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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) [2023-11-23 21:30:31,552 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 480 transitions. [2023-11-23 21:30:31,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 21:30:31,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:31,556 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:31,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:30:31,556 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:31,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:31,557 INFO L85 PathProgramCache]: Analyzing trace with hash -730302270, now seen corresponding path program 1 times [2023-11-23 21:30:31,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:31,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353750776] [2023-11-23 21:30:31,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:31,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:31,698 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:31,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:31,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353750776] [2023-11-23 21:30:31,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353750776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:31,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:31,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:30:31,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632073299] [2023-11-23 21:30:31,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:31,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:31,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:31,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:31,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:31,702 INFO L87 Difference]: Start difference. First operand 287 states and 480 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-11-23 21:30:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:32,098 INFO L93 Difference]: Finished difference Result 786 states and 1318 transitions. [2023-11-23 21:30:32,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:32,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2023-11-23 21:30:32,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:32,102 INFO L225 Difference]: With dead ends: 786 [2023-11-23 21:30:32,102 INFO L226 Difference]: Without dead ends: 500 [2023-11-23 21:30:32,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:32,106 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:32,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 13 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:30:32,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-11-23 21:30:32,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2023-11-23 21:30:32,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 499 states have (on average 1.6332665330661322) internal successors, (815), 499 states have internal predecessors, (815), 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) [2023-11-23 21:30:32,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 815 transitions. [2023-11-23 21:30:32,133 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 815 transitions. Word has length 80 [2023-11-23 21:30:32,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:32,134 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 815 transitions. [2023-11-23 21:30:32,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-11-23 21:30:32,134 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 815 transitions. [2023-11-23 21:30:32,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-23 21:30:32,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:32,139 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:32,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:30:32,139 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:32,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:32,140 INFO L85 PathProgramCache]: Analyzing trace with hash 579275832, now seen corresponding path program 1 times [2023-11-23 21:30:32,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:32,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363259684] [2023-11-23 21:30:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:32,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:32,476 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:32,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:32,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363259684] [2023-11-23 21:30:32,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363259684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:32,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:32,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:30:32,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358302209] [2023-11-23 21:30:32,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:32,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:32,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:32,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:32,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:32,479 INFO L87 Difference]: Start difference. First operand 500 states and 815 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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) [2023-11-23 21:30:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:32,801 INFO L93 Difference]: Finished difference Result 999 states and 1629 transitions. [2023-11-23 21:30:32,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:32,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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 84 [2023-11-23 21:30:32,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:32,805 INFO L225 Difference]: With dead ends: 999 [2023-11-23 21:30:32,805 INFO L226 Difference]: Without dead ends: 500 [2023-11-23 21:30:32,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:32,808 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 69 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:32,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 57 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:30:32,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-11-23 21:30:32,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2023-11-23 21:30:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 499 states have (on average 1.6092184368737474) internal successors, (803), 499 states have internal predecessors, (803), 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) [2023-11-23 21:30:32,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 803 transitions. [2023-11-23 21:30:32,841 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 803 transitions. Word has length 84 [2023-11-23 21:30:32,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:32,841 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 803 transitions. [2023-11-23 21:30:32,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 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) [2023-11-23 21:30:32,842 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 803 transitions. [2023-11-23 21:30:32,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 21:30:32,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:32,845 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:32,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:30:32,845 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:32,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:32,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2069695501, now seen corresponding path program 1 times [2023-11-23 21:30:32,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:32,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38380291] [2023-11-23 21:30:32,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:32,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:33,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:33,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38380291] [2023-11-23 21:30:33,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38380291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:33,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:33,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:30:33,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486422671] [2023-11-23 21:30:33,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:33,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:33,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:33,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:33,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:33,073 INFO L87 Difference]: Start difference. First operand 500 states and 803 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 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) [2023-11-23 21:30:33,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:33,398 INFO L93 Difference]: Finished difference Result 1212 states and 1902 transitions. [2023-11-23 21:30:33,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:33,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 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 86 [2023-11-23 21:30:33,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:33,403 INFO L225 Difference]: With dead ends: 1212 [2023-11-23 21:30:33,403 INFO L226 Difference]: Without dead ends: 713 [2023-11-23 21:30:33,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:33,406 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 62 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:33,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 58 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:30:33,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-11-23 21:30:33,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 642. [2023-11-23 21:30:33,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 641 states have (on average 1.5210608424336973) internal successors, (975), 641 states have internal predecessors, (975), 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) [2023-11-23 21:30:33,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 975 transitions. [2023-11-23 21:30:33,430 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 975 transitions. Word has length 86 [2023-11-23 21:30:33,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:33,432 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 975 transitions. [2023-11-23 21:30:33,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 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) [2023-11-23 21:30:33,432 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 975 transitions. [2023-11-23 21:30:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-23 21:30:33,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:33,435 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:33,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:30:33,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:33,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:33,439 INFO L85 PathProgramCache]: Analyzing trace with hash 117952187, now seen corresponding path program 1 times [2023-11-23 21:30:33,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:33,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117957250] [2023-11-23 21:30:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:33,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:33,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:33,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117957250] [2023-11-23 21:30:33,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117957250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:33,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:33,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:33,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614572928] [2023-11-23 21:30:33,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:33,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:30:33,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:33,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:30:33,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:30:33,713 INFO L87 Difference]: Start difference. First operand 642 states and 975 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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) [2023-11-23 21:30:34,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:34,202 INFO L93 Difference]: Finished difference Result 1496 states and 2210 transitions. [2023-11-23 21:30:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:30:34,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2023-11-23 21:30:34,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:34,207 INFO L225 Difference]: With dead ends: 1496 [2023-11-23 21:30:34,207 INFO L226 Difference]: Without dead ends: 855 [2023-11-23 21:30:34,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:30:34,209 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 138 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:34,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 55 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:30:34,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2023-11-23 21:30:34,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 784. [2023-11-23 21:30:34,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.4572158365261814) internal successors, (1141), 783 states have internal predecessors, (1141), 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) [2023-11-23 21:30:34,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1141 transitions. [2023-11-23 21:30:34,257 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1141 transitions. Word has length 90 [2023-11-23 21:30:34,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:34,258 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 1141 transitions. [2023-11-23 21:30:34,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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) [2023-11-23 21:30:34,258 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1141 transitions. [2023-11-23 21:30:34,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-23 21:30:34,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:34,261 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 21:30:34,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:30:34,262 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:34,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:34,263 INFO L85 PathProgramCache]: Analyzing trace with hash 2078085372, now seen corresponding path program 1 times [2023-11-23 21:30:34,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:34,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325403345] [2023-11-23 21:30:34,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:34,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:34,474 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-23 21:30:34,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:34,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325403345] [2023-11-23 21:30:34,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325403345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:34,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:34,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:30:34,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047949152] [2023-11-23 21:30:34,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:34,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:34,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:34,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:34,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:34,492 INFO L87 Difference]: Start difference. First operand 784 states and 1141 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) [2023-11-23 21:30:34,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:34,800 INFO L93 Difference]: Finished difference Result 928 states and 1333 transitions. [2023-11-23 21:30:34,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:34,801 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 108 [2023-11-23 21:30:34,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:34,806 INFO L225 Difference]: With dead ends: 928 [2023-11-23 21:30:34,807 INFO L226 Difference]: Without dead ends: 926 [2023-11-23 21:30:34,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:34,812 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:34,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 27 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:30:34,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2023-11-23 21:30:34,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 855. [2023-11-23 21:30:34,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 854 states have (on average 1.4672131147540983) internal successors, (1253), 854 states have internal predecessors, (1253), 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) [2023-11-23 21:30:34,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1253 transitions. [2023-11-23 21:30:34,843 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1253 transitions. Word has length 108 [2023-11-23 21:30:34,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:34,844 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 1253 transitions. [2023-11-23 21:30:34,844 INFO L496 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) [2023-11-23 21:30:34,844 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1253 transitions. [2023-11-23 21:30:34,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 21:30:34,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:34,848 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 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] [2023-11-23 21:30:34,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:30:34,848 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:34,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:34,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1650369392, now seen corresponding path program 1 times [2023-11-23 21:30:34,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:34,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053455678] [2023-11-23 21:30:34,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:34,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:35,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:35,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053455678] [2023-11-23 21:30:35,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053455678] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:30:35,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38466776] [2023-11-23 21:30:35,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:35,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:30:35,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:35,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:30:35,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:30:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:35,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:30:35,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:35,565 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:30:35,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:35,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38466776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:35,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:30:35,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-11-23 21:30:35,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012692759] [2023-11-23 21:30:35,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:35,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:30:35,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:35,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:30:35,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:30:35,568 INFO L87 Difference]: Start difference. First operand 855 states and 1253 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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) [2023-11-23 21:30:36,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:36,145 INFO L93 Difference]: Finished difference Result 2064 states and 3042 transitions. [2023-11-23 21:30:36,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:30:36,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2023-11-23 21:30:36,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:36,153 INFO L225 Difference]: With dead ends: 2064 [2023-11-23 21:30:36,153 INFO L226 Difference]: Without dead ends: 1210 [2023-11-23 21:30:36,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:30:36,155 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 105 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:36,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 48 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:30:36,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2023-11-23 21:30:36,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 926. [2023-11-23 21:30:36,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 925 states have (on average 1.3837837837837839) internal successors, (1280), 925 states have internal predecessors, (1280), 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) [2023-11-23 21:30:36,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1280 transitions. [2023-11-23 21:30:36,184 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1280 transitions. Word has length 121 [2023-11-23 21:30:36,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:36,185 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1280 transitions. [2023-11-23 21:30:36,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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) [2023-11-23 21:30:36,185 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1280 transitions. [2023-11-23 21:30:36,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-23 21:30:36,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:36,189 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:30:36,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:36,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:30:36,404 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:36,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:36,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1251866251, now seen corresponding path program 1 times [2023-11-23 21:30:36,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:36,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243629619] [2023-11-23 21:30:36,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:36,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:36,902 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-23 21:30:36,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:36,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243629619] [2023-11-23 21:30:36,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243629619] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:30:36,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248801301] [2023-11-23 21:30:36,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:36,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:30:36,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:36,905 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:30:36,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:30:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:37,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:30:37,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:37,395 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-23 21:30:37,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:37,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248801301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:37,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:30:37,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-23 21:30:37,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310683576] [2023-11-23 21:30:37,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:37,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:37,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:37,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:37,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:30:37,399 INFO L87 Difference]: Start difference. First operand 926 states and 1280 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2023-11-23 21:30:37,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:37,758 INFO L93 Difference]: Finished difference Result 2135 states and 2952 transitions. [2023-11-23 21:30:37,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:37,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 171 [2023-11-23 21:30:37,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:37,766 INFO L225 Difference]: With dead ends: 2135 [2023-11-23 21:30:37,766 INFO L226 Difference]: Without dead ends: 1210 [2023-11-23 21:30:37,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:30:37,769 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 34 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:37,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 49 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:30:37,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2023-11-23 21:30:37,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1068. [2023-11-23 21:30:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 1.401124648547329) internal successors, (1495), 1067 states have internal predecessors, (1495), 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) [2023-11-23 21:30:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1495 transitions. [2023-11-23 21:30:37,806 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1495 transitions. Word has length 171 [2023-11-23 21:30:37,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:37,806 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1495 transitions. [2023-11-23 21:30:37,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2023-11-23 21:30:37,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1495 transitions. [2023-11-23 21:30:37,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-23 21:30:37,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:37,811 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:30:37,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:38,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:30:38,032 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:38,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:38,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1688914166, now seen corresponding path program 1 times [2023-11-23 21:30:38,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:38,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323873704] [2023-11-23 21:30:38,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:38,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-23 21:30:38,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:38,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323873704] [2023-11-23 21:30:38,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323873704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:38,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:38,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:38,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227604781] [2023-11-23 21:30:38,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:38,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:38,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:38,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:38,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:38,258 INFO L87 Difference]: Start difference. First operand 1068 states and 1495 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2023-11-23 21:30:38,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:38,606 INFO L93 Difference]: Finished difference Result 2348 states and 3263 transitions. [2023-11-23 21:30:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:38,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 175 [2023-11-23 21:30:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:38,613 INFO L225 Difference]: With dead ends: 2348 [2023-11-23 21:30:38,614 INFO L226 Difference]: Without dead ends: 1068 [2023-11-23 21:30:38,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:38,616 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:38,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 126 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:30:38,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2023-11-23 21:30:38,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 997. [2023-11-23 21:30:38,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 996 states have (on average 1.211847389558233) internal successors, (1207), 996 states have internal predecessors, (1207), 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) [2023-11-23 21:30:38,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1207 transitions. [2023-11-23 21:30:38,645 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1207 transitions. Word has length 175 [2023-11-23 21:30:38,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:38,646 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1207 transitions. [2023-11-23 21:30:38,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2023-11-23 21:30:38,646 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1207 transitions. [2023-11-23 21:30:38,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-23 21:30:38,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:38,651 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-23 21:30:38,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 21:30:38,651 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:38,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:38,652 INFO L85 PathProgramCache]: Analyzing trace with hash 829108053, now seen corresponding path program 1 times [2023-11-23 21:30:38,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:38,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132047329] [2023-11-23 21:30:38,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:38,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-23 21:30:38,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:38,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132047329] [2023-11-23 21:30:38,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132047329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:38,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:38,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:38,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502772362] [2023-11-23 21:30:38,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:38,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:38,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:38,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:38,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:38,932 INFO L87 Difference]: Start difference. First operand 997 states and 1207 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2023-11-23 21:30:39,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:39,219 INFO L93 Difference]: Finished difference Result 2135 states and 2584 transitions. [2023-11-23 21:30:39,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:39,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 214 [2023-11-23 21:30:39,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:39,226 INFO L225 Difference]: With dead ends: 2135 [2023-11-23 21:30:39,226 INFO L226 Difference]: Without dead ends: 1139 [2023-11-23 21:30:39,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:39,229 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:39,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 111 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:30:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2023-11-23 21:30:39,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1139. [2023-11-23 21:30:39,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 1138 states have (on average 1.1906854130052724) internal successors, (1355), 1138 states have internal predecessors, (1355), 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) [2023-11-23 21:30:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1355 transitions. [2023-11-23 21:30:39,261 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1355 transitions. Word has length 214 [2023-11-23 21:30:39,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:39,261 INFO L495 AbstractCegarLoop]: Abstraction has 1139 states and 1355 transitions. [2023-11-23 21:30:39,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2023-11-23 21:30:39,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1355 transitions. [2023-11-23 21:30:39,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-11-23 21:30:39,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:39,267 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:30:39,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 21:30:39,267 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:39,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:39,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1749892940, now seen corresponding path program 1 times [2023-11-23 21:30:39,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:39,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210723180] [2023-11-23 21:30:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:39,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:40,018 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 237 proven. 38 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-23 21:30:40,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:40,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210723180] [2023-11-23 21:30:40,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210723180] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:30:40,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584175510] [2023-11-23 21:30:40,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:40,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:30:40,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:40,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:30:40,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:30:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:40,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:30:40,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-11-23 21:30:40,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:40,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584175510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:40,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:30:40,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-23 21:30:40,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804420108] [2023-11-23 21:30:40,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:40,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:40,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:40,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:40,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:30:40,342 INFO L87 Difference]: Start difference. First operand 1139 states and 1355 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2023-11-23 21:30:40,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:40,645 INFO L93 Difference]: Finished difference Result 2348 states and 2801 transitions. [2023-11-23 21:30:40,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:40,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 227 [2023-11-23 21:30:40,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:40,653 INFO L225 Difference]: With dead ends: 2348 [2023-11-23 21:30:40,653 INFO L226 Difference]: Without dead ends: 1210 [2023-11-23 21:30:40,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:30:40,656 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 37 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:40,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 100 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:30:40,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2023-11-23 21:30:40,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1210. [2023-11-23 21:30:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1209 states have (on average 1.164598842018197) internal successors, (1408), 1209 states have internal predecessors, (1408), 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) [2023-11-23 21:30:40,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1408 transitions. [2023-11-23 21:30:40,692 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1408 transitions. Word has length 227 [2023-11-23 21:30:40,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:40,693 INFO L495 AbstractCegarLoop]: Abstraction has 1210 states and 1408 transitions. [2023-11-23 21:30:40,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2023-11-23 21:30:40,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1408 transitions. [2023-11-23 21:30:40,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-11-23 21:30:40,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:40,699 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-23 21:30:40,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:40,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 21:30:40,908 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:40,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:40,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1147378974, now seen corresponding path program 1 times [2023-11-23 21:30:40,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:40,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190848371] [2023-11-23 21:30:40,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:40,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:30:41,010 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:30:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:30:41,152 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:30:41,154 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:30:41,156 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:30:41,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 21:30:41,161 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:41,166 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:30:41,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:30:41 BoogieIcfgContainer [2023-11-23 21:30:41,361 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:30:41,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:30:41,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:30:41,362 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:30:41,363 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:29" (3/4) ... [2023-11-23 21:30:41,363 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 21:30:41,840 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:30:41,841 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:30:41,841 INFO L158 Benchmark]: Toolchain (without parser) took 14915.46ms. Allocated memory was 172.0MB in the beginning and 314.6MB in the end (delta: 142.6MB). Free memory was 125.8MB in the beginning and 131.8MB in the end (delta: -6.1MB). Peak memory consumption was 139.1MB. Max. memory is 16.1GB. [2023-11-23 21:30:41,842 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 82.5MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:30:41,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 696.51ms. Allocated memory is still 172.0MB. Free memory was 125.8MB in the beginning and 98.0MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 21:30:41,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 165.55ms. Allocated memory is still 172.0MB. Free memory was 97.9MB in the beginning and 135.5MB in the end (delta: -37.7MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-23 21:30:41,843 INFO L158 Benchmark]: Boogie Preprocessor took 124.50ms. Allocated memory is still 172.0MB. Free memory was 135.5MB in the beginning and 131.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:30:41,844 INFO L158 Benchmark]: RCFGBuilder took 1661.59ms. Allocated memory is still 172.0MB. Free memory was 131.4MB in the beginning and 74.1MB in the end (delta: 57.3MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. [2023-11-23 21:30:41,844 INFO L158 Benchmark]: TraceAbstraction took 11778.91ms. Allocated memory was 172.0MB in the beginning and 314.6MB in the end (delta: 142.6MB). Free memory was 73.0MB in the beginning and 155.9MB in the end (delta: -82.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-23 21:30:41,845 INFO L158 Benchmark]: Witness Printer took 478.94ms. Allocated memory is still 314.6MB. Free memory was 155.9MB in the beginning and 131.8MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:30:41,847 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 82.5MB in the end (delta: 27.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 696.51ms. Allocated memory is still 172.0MB. Free memory was 125.8MB in the beginning and 98.0MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 165.55ms. Allocated memory is still 172.0MB. Free memory was 97.9MB in the beginning and 135.5MB in the end (delta: -37.7MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.50ms. Allocated memory is still 172.0MB. Free memory was 135.5MB in the beginning and 131.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1661.59ms. Allocated memory is still 172.0MB. Free memory was 131.4MB in the beginning and 74.1MB in the end (delta: 57.3MB). Peak memory consumption was 75.0MB. Max. memory is 16.1GB. * TraceAbstraction took 11778.91ms. Allocated memory was 172.0MB in the beginning and 314.6MB in the end (delta: 142.6MB). Free memory was 73.0MB in the beginning and 155.9MB in the end (delta: -82.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 478.94ms. Allocated memory is still 314.6MB. Free memory was 155.9MB in the beginning and 131.8MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. 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 - CounterExampleResult [Line: 414]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int a= 1; [L18] int d= 4; [L19] int e= 5; [L20] int f= 6; [L21] int c= 3; [L22] int b= 2; [L25] int u = 21; [L26] int v = 22; [L27] int w = 23; [L28] int x = 24; [L29] int y = 25; [L30] int z = 26; [L32] int a17 = 1; [L33] int a7 = 0; [L34] int a20 = 1; [L35] int a8 = 15; [L36] int a12 = 8; [L37] int a16 = 5; [L38] int a21 = 1; [L590] int output = -1; VAL [a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, output=-1, u=21, v=22, w=23, x=24, y=25, z=26] [L593] COND TRUE 1 [L596] int input; [L597] EXPR input = __VERIFIER_nondet_int() [L598] COND FALSE, EXPR !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L82] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L90] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L94] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L102] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L107] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L112] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L118] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L124] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L129] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L134] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L139] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L146] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L150] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L154] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L158] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L162] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L170] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L175] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L183] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L188] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L196] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L199] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L204] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L207] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L213] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L218] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L224] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L228] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L233] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L241] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L248] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L255] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L260] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L266] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L271] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L275] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L278] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L283] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L288] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L296] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L302] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L309] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L316] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L322] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L326] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L328] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L334] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L339] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) VAL [\old(input)=3, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L343] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L344] a17 = 0 [L345] a16 = 4 [L346] return 21; VAL [\old(input)=3, \result=21, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L601] RET, EXPR calculate_output(input) [L601] EXPR output = calculate_output(input) [L594-L603] { // read input int input; input = __VERIFIER_nondet_int(); if ((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) return -2; // operate eca engine output = calculate_output(input); } VAL [a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, output=21, u=21, v=22, w=23, x=24, y=25, z=26] [L593] COND TRUE 1 [L596] int input; [L597] EXPR input = __VERIFIER_nondet_int() [L598] COND FALSE, EXPR !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L82] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L90] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L94] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L102] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L107] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L112] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L118] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L124] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L129] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L134] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L139] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L146] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L150] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L154] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L158] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L162] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L170] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L175] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L183] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L188] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L196] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L199] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L204] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L207] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L213] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L218] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L224] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L228] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L233] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L241] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L248] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L255] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L260] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L266] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L271] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L275] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) VAL [\old(input)=4, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L278] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L279] a20 = 0 [L280] a17 = 1 [L281] a16 = 6 [L282] return 21; VAL [\old(input)=4, \result=21, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L601] RET, EXPR calculate_output(input) [L601] EXPR output = calculate_output(input) [L594-L603] { // read input int input; input = __VERIFIER_nondet_int(); if ((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) return -2; // operate eca engine output = calculate_output(input); } VAL [a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, output=21, u=21, v=22, w=23, x=24, y=25, z=26] [L593] COND TRUE 1 [L596] int input; [L597] EXPR input = __VERIFIER_nondet_int() [L598] COND FALSE, EXPR !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=4, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=4, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=4, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=4, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=4, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L73] a17 = 0 [L74] return 26; VAL [\old(input)=4, \result=26, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L601] RET, EXPR calculate_output(input) [L601] EXPR output = calculate_output(input) [L594-L603] { // read input int input; input = __VERIFIER_nondet_int(); if ((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) return -2; // operate eca engine output = calculate_output(input); } VAL [a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, output=26, u=21, v=22, w=23, x=24, y=25, z=26] [L593] COND TRUE 1 [L596] int input; [L597] EXPR input = __VERIFIER_nondet_int() [L598] COND FALSE, EXPR !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) VAL [\old(input)=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, a=1, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L82] COND TRUE ((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))) [L83] a7 = 1 [L84] a17 = 1 [L85] a21 = 0 [L86] a20 = 1 [L87] a8 = 13 [L88] a16 = 5 [L89] return 26; VAL [\old(input)=1, \result=26, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L601] RET, EXPR calculate_output(input) [L601] EXPR output = calculate_output(input) [L594-L603] { // read input int input; input = __VERIFIER_nondet_int(); if ((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) return -2; // operate eca engine output = calculate_output(input); } VAL [a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, output=26, u=21, v=22, w=23, x=24, y=25, z=26] [L593] COND TRUE 1 [L596] int input; [L597] EXPR input = __VERIFIER_nondet_int() [L598] COND FALSE, EXPR !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L82] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L90] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L94] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L102] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L107] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L112] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L118] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L124] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L129] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L134] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L139] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L146] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L150] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L154] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L158] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L162] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L170] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L175] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L183] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L188] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L196] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L199] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L204] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L207] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L213] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L218] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L224] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L228] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) VAL [\old(input)=2, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L233] COND TRUE ((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1))) [L234] a21 = 1 [L235] a8 = 14 [L236] a16 = 4 [L237] a20 = 0 [L238] a7 = 0 [L239] a17 = 0 [L240] return -1; VAL [\old(input)=2, \result=-1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L601] RET, EXPR calculate_output(input) [L601] EXPR output = calculate_output(input) [L594-L603] { // read input int input; input = __VERIFIER_nondet_int(); if ((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) return -2; // operate eca engine output = calculate_output(input); } VAL [a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, output=-1, u=21, v=22, w=23, x=24, y=25, z=26] [L593] COND TRUE 1 [L596] int input; [L597] input = __VERIFIER_nondet_int() [L598] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L82] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L90] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L94] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L102] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L107] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L112] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L118] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L124] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L129] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L134] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L139] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L146] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L150] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L154] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L158] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L162] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L170] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L175] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L183] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L188] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L196] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L199] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L204] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L207] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L213] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L218] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L224] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L228] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L233] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L241] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L248] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L255] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L260] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L266] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L271] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L275] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L278] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L283] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L288] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L296] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L302] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L309] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L316] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L322] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L326] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L328] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L334] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L339] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L343] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L347] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L355] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L363] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L365] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L371] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L373] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L375] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L382] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L387] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L392] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L401] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L404] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L407] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L410] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L413] COND TRUE ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)) VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] [L414] reach_error() VAL [\old(input)=5, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, a=1, b=2, c=3, d=4, e=5, f=6, input=5, u=21, v=22, w=23, x=24, y=25, z=26] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 13, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 717 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 717 mSDsluCounter, 698 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 675 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2832 IncrementalHoareTripleChecker+Invalid, 3507 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 675 mSolverCounterUnsat, 642 mSDtfsCounter, 2832 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 549 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1210occurred in iteration=12, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 710 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 2258 NumberOfCodeBlocks, 2258 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2007 ConstructedInterpolants, 0 QuantifiedInterpolants, 5003 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1091 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 1700/1756 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-23 21:30:41,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc8aab3a-78e3-4f06-96dd-cbb7a4db3597/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE