./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-92.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-92.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3f7842def3ffa55e8096756f751ff9953a1769b743d5a1524389a2dc0b8c63f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:21:49,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:21:49,455 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:21:49,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:21:49,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:21:49,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:21:49,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:21:49,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:21:49,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:21:49,500 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:21:49,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:21:49,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:21:49,503 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:21:49,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:21:49,505 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:21:49,505 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:21:49,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:21:49,506 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:21:49,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:21:49,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:21:49,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:21:49,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:21:49,509 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:21:49,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:21:49,511 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:21:49,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:21:49,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:21:49,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:21:49,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:21:49,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:21:49,514 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:21:49,514 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:21:49,515 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:21:49,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:21:49,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:21:49,516 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:21:49,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:21:49,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:21:49,518 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:21:49,518 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3f7842def3ffa55e8096756f751ff9953a1769b743d5a1524389a2dc0b8c63f [2023-11-06 22:21:49,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:21:49,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:21:49,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:21:49,855 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:21:49,856 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:21:49,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-92.i [2023-11-06 22:21:53,306 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:21:53,562 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:21:53,563 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-92.i [2023-11-06 22:21:53,581 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/data/7957469cb/5bcc113cf34744f2afa5bbdb54b12b58/FLAG0e166c584 [2023-11-06 22:21:53,600 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/data/7957469cb/5bcc113cf34744f2afa5bbdb54b12b58 [2023-11-06 22:21:53,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:21:53,607 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:21:53,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:21:53,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:21:53,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:21:53,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:21:53" (1/1) ... [2023-11-06 22:21:53,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5227480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:53, skipping insertion in model container [2023-11-06 22:21:53,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:21:53" (1/1) ... [2023-11-06 22:21:53,682 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:21:53,861 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_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-92.i[917,930] [2023-11-06 22:21:53,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:21:53,949 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:21:53,962 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_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-92.i[917,930] [2023-11-06 22:21:54,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:21:54,039 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:21:54,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54 WrapperNode [2023-11-06 22:21:54,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:21:54,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:21:54,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:21:54,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:21:54,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,068 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,134 INFO L138 Inliner]: procedures = 29, calls = 159, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 429 [2023-11-06 22:21:54,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:21:54,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:21:54,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:21:54,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:21:54,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,205 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:21:54,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:21:54,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:21:54,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:21:54,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (1/1) ... [2023-11-06 22:21:54,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:21:54,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:54,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:54,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:21:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:21:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-06 22:21:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:21:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-06 22:21:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:21:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-06 22:21:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:21:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:21:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:21:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:21:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:21:54,527 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:21:54,531 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:21:55,418 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:21:55,428 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:21:55,428 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:21:55,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:21:55 BoogieIcfgContainer [2023-11-06 22:21:55,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:21:55,434 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:21:55,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:21:55,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:21:55,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:21:53" (1/3) ... [2023-11-06 22:21:55,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c77e5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:21:55, skipping insertion in model container [2023-11-06 22:21:55,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:54" (2/3) ... [2023-11-06 22:21:55,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c77e5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:21:55, skipping insertion in model container [2023-11-06 22:21:55,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:21:55" (3/3) ... [2023-11-06 22:21:55,442 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-92.i [2023-11-06 22:21:55,463 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:21:55,464 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:21:55,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:21:55,528 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@720f5090, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:21:55,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:21:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 90 states have internal predecessors, (123), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:21:55,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-06 22:21:55,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:55,551 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:55,552 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:21:55,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:55,557 INFO L85 PathProgramCache]: Analyzing trace with hash 250668227, now seen corresponding path program 1 times [2023-11-06 22:21:55,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:55,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638057320] [2023-11-06 22:21:55,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:55,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:55,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:55,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638057320] [2023-11-06 22:21:55,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:21:55,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087540849] [2023-11-06 22:21:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:55,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:55,944 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:55,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:21:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:56,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:21:56,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:56,445 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2023-11-06 22:21:56,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:21:56,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087540849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:56,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:56,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:21:56,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423457611] [2023-11-06 22:21:56,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:56,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:21:56,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:56,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:21:56,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:21:56,517 INFO L87 Difference]: Start difference. First operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 90 states have internal predecessors, (123), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-06 22:21:56,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:56,595 INFO L93 Difference]: Finished difference Result 215 states and 335 transitions. [2023-11-06 22:21:56,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:21:56,597 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 153 [2023-11-06 22:21:56,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:56,607 INFO L225 Difference]: With dead ends: 215 [2023-11-06 22:21:56,608 INFO L226 Difference]: Without dead ends: 107 [2023-11-06 22:21:56,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:21:56,622 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:56,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:21:56,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-06 22:21:56,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-06 22:21:56,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.3488372093023255) internal successors, (116), 86 states have internal predecessors, (116), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:21:56,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 154 transitions. [2023-11-06 22:21:56,694 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 154 transitions. Word has length 153 [2023-11-06 22:21:56,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:56,694 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 154 transitions. [2023-11-06 22:21:56,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-06 22:21:56,695 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 154 transitions. [2023-11-06 22:21:56,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-06 22:21:56,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:56,712 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:56,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:56,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:56,920 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:21:56,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:56,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2058345439, now seen corresponding path program 1 times [2023-11-06 22:21:56,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:56,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306519375] [2023-11-06 22:21:56,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:56,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:57,107 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:21:57,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071246945] [2023-11-06 22:21:57,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:57,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:57,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:57,110 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:57,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:21:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:57,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:21:57,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:21:57,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:21:57,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:21:57,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306519375] [2023-11-06 22:21:57,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:21:57,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071246945] [2023-11-06 22:21:57,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071246945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:21:57,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:21:57,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:21:57,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295529251] [2023-11-06 22:21:57,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:21:57,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:21:57,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:21:57,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:21:57,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:21:57,558 INFO L87 Difference]: Start difference. First operand 107 states and 154 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:21:57,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:21:57,643 INFO L93 Difference]: Finished difference Result 215 states and 310 transitions. [2023-11-06 22:21:57,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:21:57,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2023-11-06 22:21:57,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:21:57,656 INFO L225 Difference]: With dead ends: 215 [2023-11-06 22:21:57,658 INFO L226 Difference]: Without dead ends: 111 [2023-11-06 22:21:57,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:21:57,665 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 3 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:21:57,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 445 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:21:57,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-06 22:21:57,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2023-11-06 22:21:57,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:21:57,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2023-11-06 22:21:57,698 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 153 [2023-11-06 22:21:57,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:21:57,704 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2023-11-06 22:21:57,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:21:57,704 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2023-11-06 22:21:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-06 22:21:57,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:21:57,711 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:21:57,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:57,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:57,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:21:57,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:57,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2056498397, now seen corresponding path program 1 times [2023-11-06 22:21:57,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:57,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007839110] [2023-11-06 22:21:57,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:57,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:58,074 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:21:58,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401353354] [2023-11-06 22:21:58,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:58,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:21:58,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:58,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:21:58,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:21:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:58,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-06 22:21:58,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:01,427 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:22:01,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:01,846 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:22:02,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:02,262 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:22:02,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:02,333 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:22:02,363 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-06 22:22:02,386 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 1 proven. 307 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2023-11-06 22:22:02,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:22:02,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:02,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007839110] [2023-11-06 22:22:02,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:22:02,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401353354] [2023-11-06 22:22:02,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401353354] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:22:02,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:22:02,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-06 22:22:02,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281101030] [2023-11-06 22:22:02,595 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:22:02,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:22:02,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:02,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:22:02,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=154, Unknown=9, NotChecked=0, Total=210 [2023-11-06 22:22:02,600 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-06 22:22:03,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:03,674 INFO L93 Difference]: Finished difference Result 225 states and 318 transitions. [2023-11-06 22:22:03,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:22:03,675 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2023-11-06 22:22:03,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:03,678 INFO L225 Difference]: With dead ends: 225 [2023-11-06 22:22:03,678 INFO L226 Difference]: Without dead ends: 119 [2023-11-06 22:22:03,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=436, Unknown=9, NotChecked=0, Total=600 [2023-11-06 22:22:03,681 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 120 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:03,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 532 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:22:03,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-06 22:22:03,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 113. [2023-11-06 22:22:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 91 states have (on average 1.3186813186813187) internal successors, (120), 91 states have internal predecessors, (120), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:22:03,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 158 transitions. [2023-11-06 22:22:03,710 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 158 transitions. Word has length 153 [2023-11-06 22:22:03,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:03,712 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 158 transitions. [2023-11-06 22:22:03,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 10 states have internal predecessors, (70), 4 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-11-06 22:22:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 158 transitions. [2023-11-06 22:22:03,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-06 22:22:03,715 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:03,715 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:03,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:22:03,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-06 22:22:03,924 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:03,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:03,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1633796571, now seen corresponding path program 1 times [2023-11-06 22:22:03,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:03,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605422073] [2023-11-06 22:22:03,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:03,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:04,000 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:22:04,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2009448525] [2023-11-06 22:22:04,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:04,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:04,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:04,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:22:04,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:22:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:04,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-06 22:22:04,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:10,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:10,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:10,453 INFO L322 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-06 22:22:10,454 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 28 [2023-11-06 22:22:10,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:10,620 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-06 22:22:10,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:10,801 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-06 22:22:10,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:10,859 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-06 22:22:10,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:10,954 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-06 22:22:11,059 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:22:11,060 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 40 [2023-11-06 22:22:11,317 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:22:11,317 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:22:11,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:11,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605422073] [2023-11-06 22:22:11,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:22:11,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009448525] [2023-11-06 22:22:11,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009448525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:22:11,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:22:11,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:22:11,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35801416] [2023-11-06 22:22:11,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:22:11,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:22:11,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:11,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:22:11,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:22:11,324 INFO L87 Difference]: Start difference. First operand 113 states and 158 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:22:12,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:12,657 INFO L93 Difference]: Finished difference Result 303 states and 427 transitions. [2023-11-06 22:22:12,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:22:12,659 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2023-11-06 22:22:12,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:12,662 INFO L225 Difference]: With dead ends: 303 [2023-11-06 22:22:12,662 INFO L226 Difference]: Without dead ends: 193 [2023-11-06 22:22:12,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:22:12,665 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 279 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:12,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 546 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-06 22:22:12,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-06 22:22:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 128. [2023-11-06 22:22:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 106 states have (on average 1.330188679245283) internal successors, (141), 106 states have internal predecessors, (141), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:22:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 179 transitions. [2023-11-06 22:22:12,698 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 179 transitions. Word has length 153 [2023-11-06 22:22:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:12,699 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 179 transitions. [2023-11-06 22:22:12,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:22:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 179 transitions. [2023-11-06 22:22:12,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-06 22:22:12,703 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:12,703 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:12,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:22:12,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:12,912 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:12,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:12,913 INFO L85 PathProgramCache]: Analyzing trace with hash -353932893, now seen corresponding path program 1 times [2023-11-06 22:22:12,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:12,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486005010] [2023-11-06 22:22:12,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:12,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:12,985 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:22:12,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489174948] [2023-11-06 22:22:12,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:12,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:12,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:12,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:22:13,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:22:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:13,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 99 conjunts are in the unsatisfiable core [2023-11-06 22:22:13,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:18,139 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:22:19,532 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-11-06 22:22:20,985 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2023-11-06 22:22:22,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:22,361 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2023-11-06 22:22:23,973 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 90 [2023-11-06 22:22:24,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:24,451 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 104 [2023-11-06 22:22:25,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:25,199 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 109 [2023-11-06 22:22:25,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:25,465 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 109 [2023-11-06 22:22:25,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:25,712 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 109 [2023-11-06 22:22:26,213 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 76 [2023-11-06 22:22:26,428 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 208 proven. 270 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2023-11-06 22:22:26,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:22:26,776 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_622 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse1 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (.cse0 (mod (+ (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= .cse0 (+ .cse1 256)) (= .cse1 .cse0))))) (forall ((v_ArrVal_622 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse3 (mod (+ (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= .cse3 (+ (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) 256)) (< .cse3 128))))) (forall ((v_ArrVal_622 (Array Int Int))) (let ((.cse6 (store |c_#memory_int| c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse5 (mod (+ (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (< 127 .cse5) (= (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) .cse5)))))) is different from false [2023-11-06 22:22:26,839 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse0 (mod (+ (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset) 255) (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= .cse0 (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (< 127 .cse0))))) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse2 (mod (+ (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset) 255) (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= .cse2 (+ 256 (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))) (< .cse2 128))))) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int))) (let ((.cse6 (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse4 (mod (+ (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset) 255) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256)) (.cse5 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))) (or (= .cse4 .cse5) (= .cse4 (+ 256 .cse5))))))) is different from false [2023-11-06 22:22:26,912 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse1 (store (store (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse0 (mod (+ (* 255 (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (< 127 .cse0) (= (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) .cse0))))) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse4 (store (store (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse3 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (.cse2 (mod (+ (* 255 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= .cse2 (+ 256 .cse3)) (= .cse3 .cse2))))) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse6 (store (store (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse5 (mod (+ (* 255 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= .cse5 (+ 256 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))) (< .cse5 128)))))) is different from false [2023-11-06 22:22:27,583 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse2 (store (store (store .cse3 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse0 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (.cse1 (mod (+ (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset) 255)) 256))) (or (= (+ .cse0 256) .cse1) (= .cse0 .cse1))))) (< (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0)))) (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (< (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse6 (store (store (store .cse4 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse5 (mod (+ (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset) 255)) 256))) (or (< 127 .cse5) (= (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) .cse5)))))))) (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse7 (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (< (select (select .cse7 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse8 (store (store (store .cse7 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse9 (mod (+ (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset) 255)) 256))) (or (= (+ (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) 256) .cse9) (< .cse9 128))))))))) is different from false [2023-11-06 22:22:28,015 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse11 (select |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base)) (.cse12 (mod (+ |c_ULTIMATE.start_step_#t~mem5#1| (* |c_ULTIMATE.start_step_#t~ite12#1| 255) |c_ULTIMATE.start_step_#t~mem4#1|) 256))) (and (or (let ((.cse4 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse11 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset (+ .cse12 (- 256)))))) (and (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse0 (store .cse4 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (< (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse3 (store (store (store .cse0 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse2 (mod (+ (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256)) (.cse1 (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))) (or (= (+ 256 .cse1) .cse2) (= .cse2 .cse1)))))))) (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse7 (store .cse4 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse6 (store (store (store .cse7 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse5 (mod (+ (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (< 127 .cse5) (= .cse5 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)))))) (< (select (select .cse7 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0)))) (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse10 (store .cse4 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse9 (store (store (store .cse10 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse8 (mod (+ (select (select .cse9 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse9 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse9 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (< .cse8 128) (= (+ 256 (select (select .cse9 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) .cse8))))) (< (select (select .cse10 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0)))))) (< .cse12 128)) (or (< 127 .cse12) (let ((.cse16 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse11 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset .cse12)))) (and (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse13 (store .cse16 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (< (select (select .cse13 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse14 (store (store (store .cse13 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse15 (mod (+ (select (select .cse14 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse14 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse14 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset)) 256))) (or (= (select (select .cse14 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) .cse15) (< 127 .cse15)))))))) (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse19 (store .cse16 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse18 (store (store (store .cse19 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse17 (mod (+ (select (select .cse18 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse18 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse18 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset)) 256))) (or (< .cse17 128) (= (+ 256 (select (select .cse18 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) .cse17))))) (< (select (select .cse19 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0)))) (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse20 (store .cse16 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (< (select (select .cse20 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse23 (store (store (store .cse20 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse21 (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (.cse22 (mod (+ (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset)) 256))) (or (= .cse21 .cse22) (= (+ 256 .cse21) .cse22))))))))))))) is different from false [2023-11-06 22:22:28,359 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse11 (select |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base)) (.cse12 (mod (+ |c_ULTIMATE.start_step_#t~mem5#1| (* 255 (select (select |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) |c_ULTIMATE.start_step_#t~mem4#1|) 256))) (and (or (let ((.cse3 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse11 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset (+ (- 256) .cse12))))) (and (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse2 (store .cse3 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse1 (store (store (store .cse2 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse0 (mod (+ (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (< 127 .cse0) (= .cse0 (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)))))) (< (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0)))) (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse6 (store .cse3 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse5 (store (store (store .cse6 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse4 (mod (+ (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (< .cse4 128) (= .cse4 (+ 256 (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))))))) (< (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0)))) (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse10 (store .cse3 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse9 (store (store (store .cse10 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse7 (mod (+ (select (select .cse9 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse9 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse9 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256)) (.cse8 (select (select .cse9 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))) (or (= .cse7 .cse8) (= .cse7 (+ 256 .cse8)))))) (< (select (select .cse10 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0)))))) (< .cse12 128)) (or (let ((.cse16 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse11 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset .cse12)))) (and (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse13 (store .cse16 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (< (select (select .cse13 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse15 (store (store (store .cse13 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse14 (mod (+ (select (select .cse15 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse15 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse15 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset))) 256))) (or (< .cse14 128) (= (+ 256 (select (select .cse15 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) .cse14)))))))) (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse17 (store .cse16 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (< (select (select .cse17 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse20 (store (store (store .cse17 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse19 (mod (+ (select (select .cse20 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse20 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse20 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset))) 256)) (.cse18 (select (select .cse20 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))) (or (= (+ 256 .cse18) .cse19) (= .cse19 .cse18)))))))) (forall ((v_ArrVal_619 (Array Int Int))) (let ((.cse21 (store .cse16 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_619))) (or (< (select (select .cse21 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_622 (Array Int Int)) (v_ArrVal_621 (Array Int Int)) (v_ArrVal_620 (Array Int Int))) (let ((.cse23 (store (store (store .cse21 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_620) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_621) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_622))) (let ((.cse22 (mod (+ (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset))) 256))) (or (= .cse22 (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (< 127 .cse22)))))))))) (< 127 .cse12)))) is different from false [2023-11-06 22:22:29,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:22:29,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486005010] [2023-11-06 22:22:29,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:22:29,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489174948] [2023-11-06 22:22:29,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489174948] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:22:29,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:22:29,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2023-11-06 22:22:29,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792952445] [2023-11-06 22:22:29,949 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:22:29,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-06 22:22:29,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:22:29,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-06 22:22:29,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1393, Unknown=6, NotChecked=486, Total=2070 [2023-11-06 22:22:29,953 INFO L87 Difference]: Start difference. First operand 128 states and 179 transitions. Second operand has 34 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 28 states have internal predecessors, (79), 7 states have call successors, (19), 6 states have call predecessors, (19), 7 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-06 22:22:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:22:36,738 INFO L93 Difference]: Finished difference Result 347 states and 473 transitions. [2023-11-06 22:22:36,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-06 22:22:36,739 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 28 states have internal predecessors, (79), 7 states have call successors, (19), 6 states have call predecessors, (19), 7 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) Word has length 153 [2023-11-06 22:22:36,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:22:36,742 INFO L225 Difference]: With dead ends: 347 [2023-11-06 22:22:36,742 INFO L226 Difference]: Without dead ends: 222 [2023-11-06 22:22:36,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1039 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=583, Invalid=3595, Unknown=6, NotChecked=786, Total=4970 [2023-11-06 22:22:36,747 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1020 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:22:36,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1717 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 2113 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-06 22:22:36,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-11-06 22:22:36,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 146. [2023-11-06 22:22:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 120 states have (on average 1.2916666666666667) internal successors, (155), 120 states have internal predecessors, (155), 19 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:22:36,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 193 transitions. [2023-11-06 22:22:36,779 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 193 transitions. Word has length 153 [2023-11-06 22:22:36,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:22:36,780 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 193 transitions. [2023-11-06 22:22:36,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 28 states have internal predecessors, (79), 7 states have call successors, (19), 6 states have call predecessors, (19), 7 states have return successors, (19), 6 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-06 22:22:36,781 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 193 transitions. [2023-11-06 22:22:36,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-06 22:22:36,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:22:36,783 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:22:36,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:22:36,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:36,993 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:22:36,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:22:36,993 INFO L85 PathProgramCache]: Analyzing trace with hash 289431463, now seen corresponding path program 1 times [2023-11-06 22:22:36,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:22:36,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460339864] [2023-11-06 22:22:36,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:36,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:22:37,043 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:22:37,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599780277] [2023-11-06 22:22:37,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:22:37,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:22:37,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:22:37,046 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:22:37,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:22:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:22:37,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 156 conjunts are in the unsatisfiable core [2023-11-06 22:22:37,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:22:41,860 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:22:43,498 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-11-06 22:22:45,699 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2023-11-06 22:22:47,672 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 37 [2023-11-06 22:22:50,698 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 50 [2023-11-06 22:22:53,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:53,589 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 53 [2023-11-06 22:22:56,852 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 227 treesize of output 135 [2023-11-06 22:22:57,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:57,620 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 157 [2023-11-06 22:22:58,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:58,864 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 155 [2023-11-06 22:22:59,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:59,319 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 155 [2023-11-06 22:22:59,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:22:59,739 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 218 treesize of output 155 [2023-11-06 22:23:00,602 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 244 treesize of output 104 [2023-11-06 22:23:00,960 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 308 proven. 309 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-06 22:23:00,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:23:01,536 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_757 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse0 (mod (+ (* 255 (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset)) (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 255) (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (< .cse0 128) (= (+ 256 (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) .cse0))))) (forall ((v_ArrVal_757 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse3 (mod (+ (* 255 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset)) (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 255) (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256)) (.cse2 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))) (or (= (+ 256 .cse2) .cse3) (= .cse3 .cse2))))) (forall ((v_ArrVal_757 (Array Int Int))) (let ((.cse6 (store |c_#memory_int| c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse5 (mod (+ (* 255 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset)) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 255) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= .cse5 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (< 127 .cse5)))))) is different from false [2023-11-06 22:23:01,609 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse2 (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse0 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (.cse1 (mod (+ (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset)) (* 255 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= (+ .cse0 256) .cse1) (= .cse0 .cse1))))) (forall ((v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse4 (mod (+ (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset)) (* 255 (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) .cse4) (< 127 .cse4))))) (forall ((v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse5 (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse6 (mod (+ (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset)) (* 255 (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= (+ (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) 256) .cse6) (< .cse6 128)))))) is different from false [2023-11-06 22:23:01,687 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_755 (Array Int Int)) (v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse0 (store (store (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_755) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse1 (mod (+ (* 255 (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset)) (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 255) (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset)) 256))) (or (= (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) .cse1) (< 127 .cse1))))) (forall ((v_ArrVal_755 (Array Int Int)) (v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse3 (store (store (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_755) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse2 (mod (+ (* 255 (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset)) (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 255) (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset)) 256))) (or (< .cse2 128) (= .cse2 (+ (select (select .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) 256)))))) (forall ((v_ArrVal_755 (Array Int Int)) (v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse6 (store (store (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_755) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse5 (mod (+ (* 255 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset)) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 255) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset)) 256)) (.cse4 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))) (or (= .cse4 .cse5) (= .cse5 (+ .cse4 256))))))) is different from false [2023-11-06 22:23:03,526 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse12 (select |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base)) (.cse0 (mod (+ |c_ULTIMATE.start_step_#t~mem5#1| (* |c_ULTIMATE.start_step_#t~ite12#1| 255) |c_ULTIMATE.start_step_#t~mem4#1|) 256))) (and (or (< 127 .cse0) (let ((.cse4 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse12 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset .cse0)))) (and (forall ((v_ArrVal_754 (Array Int Int))) (let ((.cse1 (store .cse4 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_754))) (or (< (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_755 (Array Int Int)) (v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse2 (store (store (store .cse1 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_755) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse3 (mod (+ (* (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset) 255) (* (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 255) (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) .cse3) (< 127 .cse3)))))))) (forall ((v_ArrVal_754 (Array Int Int))) (let ((.cse7 (store .cse4 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_754))) (or (forall ((v_ArrVal_755 (Array Int Int)) (v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse5 (store (store (store .cse7 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_755) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse6 (mod (+ (* (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset) 255) (* (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 255) (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= (+ (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) 256) .cse6) (< .cse6 128))))) (< (select (select .cse7 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0)))) (forall ((v_ArrVal_754 (Array Int Int))) (let ((.cse11 (store .cse4 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_754))) (or (forall ((v_ArrVal_755 (Array Int Int)) (v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse10 (store (store (store .cse11 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_755) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse8 (select (select .cse10 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (.cse9 (mod (+ (* (select (select .cse10 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset) 255) (* (select (select .cse10 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 255) (select (select .cse10 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse10 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= .cse8 .cse9) (= (+ .cse8 256) .cse9))))) (< (select (select .cse11 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0))))))) (or (< .cse0 128) (let ((.cse16 (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse12 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset (+ .cse0 (- 256)))))) (and (forall ((v_ArrVal_754 (Array Int Int))) (let ((.cse13 (store .cse16 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_754))) (or (< (select (select .cse13 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_755 (Array Int Int)) (v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse14 (store (store (store .cse13 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_755) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse15 (mod (+ (* 255 (select (select .cse14 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (select (select .cse14 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse14 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse14 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset))) 256))) (or (= (select (select .cse14 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) .cse15) (< 127 .cse15)))))))) (forall ((v_ArrVal_754 (Array Int Int))) (let ((.cse17 (store .cse16 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_754))) (or (< (select (select .cse17 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_755 (Array Int Int)) (v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse19 (store (store (store .cse17 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_755) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse18 (mod (+ (* 255 (select (select .cse19 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (select (select .cse19 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse19 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse19 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset))) 256))) (or (< .cse18 128) (= (+ (select (select .cse19 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset) 256) .cse18)))))))) (forall ((v_ArrVal_754 (Array Int Int))) (let ((.cse20 (store .cse16 c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_754))) (or (< (select (select .cse20 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_755 (Array Int Int)) (v_ArrVal_757 (Array Int Int)) (v_ArrVal_756 (Array Int Int))) (let ((.cse23 (store (store (store .cse20 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_755) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_756) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_757))) (let ((.cse21 (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (.cse22 (mod (+ (* 255 (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse23 c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var1_Pointer~0.offset))) 256))) (or (= .cse21 .cse22) (= (+ .cse21 256) .cse22))))))))))))) is different from false [2023-11-06 22:23:07,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:07,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460339864] [2023-11-06 22:23:07,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:23:07,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599780277] [2023-11-06 22:23:07,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599780277] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:23:07,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:23:07,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2023-11-06 22:23:07,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696025246] [2023-11-06 22:23:07,278 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:23:07,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-06 22:23:07,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:07,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-06 22:23:07,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=2937, Unknown=28, NotChecked=460, Total=3782 [2023-11-06 22:23:07,286 INFO L87 Difference]: Start difference. First operand 146 states and 193 transitions. Second operand has 50 states, 42 states have (on average 2.238095238095238) internal successors, (94), 41 states have internal predecessors, (94), 12 states have call successors, (19), 10 states have call predecessors, (19), 12 states have return successors, (19), 11 states have call predecessors, (19), 12 states have call successors, (19) [2023-11-06 22:23:21,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:21,643 INFO L93 Difference]: Finished difference Result 413 states and 542 transitions. [2023-11-06 22:23:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-11-06 22:23:21,646 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 42 states have (on average 2.238095238095238) internal successors, (94), 41 states have internal predecessors, (94), 12 states have call successors, (19), 10 states have call predecessors, (19), 12 states have return successors, (19), 11 states have call predecessors, (19), 12 states have call successors, (19) Word has length 153 [2023-11-06 22:23:21,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:21,650 INFO L225 Difference]: With dead ends: 413 [2023-11-06 22:23:21,650 INFO L226 Difference]: Without dead ends: 270 [2023-11-06 22:23:21,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2102 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=1042, Invalid=7314, Unknown=32, NotChecked=732, Total=9120 [2023-11-06 22:23:21,656 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 932 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 3185 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 2462 SdHoareTripleChecker+Invalid, 3273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:21,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 2462 Invalid, 3273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 3185 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-06 22:23:21,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-11-06 22:23:21,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 168. [2023-11-06 22:23:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 137 states have (on average 1.2627737226277371) internal successors, (173), 137 states have internal predecessors, (173), 19 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:23:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 211 transitions. [2023-11-06 22:23:21,697 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 211 transitions. Word has length 153 [2023-11-06 22:23:21,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:21,698 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 211 transitions. [2023-11-06 22:23:21,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 42 states have (on average 2.238095238095238) internal successors, (94), 41 states have internal predecessors, (94), 12 states have call successors, (19), 10 states have call predecessors, (19), 12 states have return successors, (19), 11 states have call predecessors, (19), 12 states have call successors, (19) [2023-11-06 22:23:21,698 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 211 transitions. [2023-11-06 22:23:21,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-06 22:23:21,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:21,702 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:21,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:21,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:23:21,913 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:21,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:21,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1569295141, now seen corresponding path program 1 times [2023-11-06 22:23:21,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:21,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173226248] [2023-11-06 22:23:21,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:21,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:21,965 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:23:21,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324515488] [2023-11-06 22:23:21,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:21,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:23:21,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:21,968 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:23:21,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:23:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:22,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-06 22:23:22,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:27,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:27,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:27,676 INFO L322 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-06 22:23:27,676 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 27 [2023-11-06 22:23:27,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:27,857 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2023-11-06 22:23:28,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:28,022 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2023-11-06 22:23:28,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:28,099 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2023-11-06 22:23:28,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:28,189 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2023-11-06 22:23:28,299 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:23:28,299 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 39 [2023-11-06 22:23:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:23:28,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:28,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:28,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173226248] [2023-11-06 22:23:28,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:23:28,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324515488] [2023-11-06 22:23:28,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324515488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:28,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:28,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:23:28,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800727968] [2023-11-06 22:23:28,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:28,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:23:28,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:28,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:23:28,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:23:28,556 INFO L87 Difference]: Start difference. First operand 168 states and 211 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:23:29,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:29,724 INFO L93 Difference]: Finished difference Result 398 states and 510 transitions. [2023-11-06 22:23:29,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:23:29,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2023-11-06 22:23:29,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:29,730 INFO L225 Difference]: With dead ends: 398 [2023-11-06 22:23:29,731 INFO L226 Difference]: Without dead ends: 233 [2023-11-06 22:23:29,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:23:29,733 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 340 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:29,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 512 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 22:23:29,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-06 22:23:29,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 168. [2023-11-06 22:23:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 137 states have (on average 1.2554744525547445) internal successors, (172), 137 states have internal predecessors, (172), 19 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:23:29,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 210 transitions. [2023-11-06 22:23:29,791 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 210 transitions. Word has length 153 [2023-11-06 22:23:29,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:29,792 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 210 transitions. [2023-11-06 22:23:29,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:23:29,793 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 210 transitions. [2023-11-06 22:23:29,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-06 22:23:29,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:29,796 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:29,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:30,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:23:30,005 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:30,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:30,006 INFO L85 PathProgramCache]: Analyzing trace with hash 427647392, now seen corresponding path program 1 times [2023-11-06 22:23:30,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:30,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022290881] [2023-11-06 22:23:30,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:30,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:30,066 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:23:30,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093235478] [2023-11-06 22:23:30,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:30,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:23:30,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:30,068 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:23:30,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:23:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:30,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-06 22:23:30,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:38,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:38,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:38,060 INFO L322 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-06 22:23:38,060 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 28 [2023-11-06 22:23:38,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:38,311 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-06 22:23:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:38,515 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-06 22:23:38,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:38,622 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-06 22:23:38,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:38,727 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-06 22:23:38,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:38,884 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-06 22:23:38,975 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:23:38,975 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 40 [2023-11-06 22:23:39,208 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-06 22:23:39,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:23:39,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:39,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022290881] [2023-11-06 22:23:39,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:23:39,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093235478] [2023-11-06 22:23:39,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093235478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:23:39,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:23:39,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:23:39,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197958662] [2023-11-06 22:23:39,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:23:39,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:23:39,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:39,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:23:39,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:23:39,213 INFO L87 Difference]: Start difference. First operand 168 states and 210 transitions. Second operand has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:23:40,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:40,252 INFO L93 Difference]: Finished difference Result 402 states and 514 transitions. [2023-11-06 22:23:40,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:23:40,253 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2023-11-06 22:23:40,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:40,256 INFO L225 Difference]: With dead ends: 402 [2023-11-06 22:23:40,256 INFO L226 Difference]: Without dead ends: 237 [2023-11-06 22:23:40,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:23:40,258 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 344 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:40,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 463 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:23:40,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-06 22:23:40,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 172. [2023-11-06 22:23:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 141 states have (on average 1.2553191489361701) internal successors, (177), 141 states have internal predecessors, (177), 19 states have call successors, (19), 11 states have call predecessors, (19), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:23:40,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 215 transitions. [2023-11-06 22:23:40,300 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 215 transitions. Word has length 155 [2023-11-06 22:23:40,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:40,301 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 215 transitions. [2023-11-06 22:23:40,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.25) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-11-06 22:23:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 215 transitions. [2023-11-06 22:23:40,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-06 22:23:40,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:40,303 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:40,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:40,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:23:40,512 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:40,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:40,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1707511070, now seen corresponding path program 1 times [2023-11-06 22:23:40,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:40,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748782606] [2023-11-06 22:23:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:40,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:40,571 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:23:40,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334419982] [2023-11-06 22:23:40,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:40,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:23:40,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:40,574 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:23:40,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:23:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:40,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-06 22:23:40,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:41,809 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:23:42,480 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:42,883 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:43,278 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:43,741 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:44,209 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:44,717 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:45,183 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:45,628 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:46,263 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:46,380 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:46,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:46,508 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:23:46,564 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 42 [2023-11-06 22:23:46,601 INFO L322 Elim1Store]: treesize reduction 30, result has 23.1 percent of original size [2023-11-06 22:23:46,601 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 57 [2023-11-06 22:23:46,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:46,701 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:23:46,701 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2023-11-06 22:23:46,728 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 1 proven. 511 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-06 22:23:46,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:23:46,771 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1160 (Array Int Int))) (< 0 (mod (select (select (store |c_#memory_int| c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1160) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset) 256))) is different from false [2023-11-06 22:23:46,794 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base)) (.cse0 (= (mod (select (select |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.offset) 256) 0))) (and (or .cse0 (forall ((~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset Int) (v_ArrVal_1160 (Array Int Int))) (< 0 (mod (select (select (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base (store .cse1 ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset 0)) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1160) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset) 256)))) (or (forall ((~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset Int) (v_ArrVal_1160 (Array Int Int))) (< 0 (mod (select (select (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base (store .cse1 ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset 1)) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1160) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset) 256))) (not .cse0)))) is different from false [2023-11-06 22:23:46,823 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1158 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1158))) (or (= (mod (select (select .cse0 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.offset) 256) 0) (forall ((~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset Int) (v_ArrVal_1160 (Array Int Int))) (< 0 (mod (select (select (store (store .cse0 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base (store (select .cse0 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset 0)) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1160) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset) 256)))))) (forall ((v_ArrVal_1158 (Array Int Int))) (let ((.cse1 (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1158))) (or (not (= (mod (select (select .cse1 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.offset) 256) 0)) (forall ((~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset Int) (v_ArrVal_1160 (Array Int Int))) (< 0 (mod (select (select (store (store .cse1 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base (store (select .cse1 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset 1)) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1160) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset) 256))))))) is different from false [2023-11-06 22:23:46,906 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1158 (Array Int Int)) (v_ArrVal_1157 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1157) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1158))) (or (forall ((~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset Int) (v_ArrVal_1160 (Array Int Int))) (< 0 (mod (select (select (store (store .cse0 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base (store (select .cse0 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset 1)) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1160) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset) 256))) (not (= (mod (select (select .cse0 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.offset) 256) 0))))) (forall ((v_ArrVal_1158 (Array Int Int)) (v_ArrVal_1157 (Array Int Int))) (let ((.cse1 (store (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1157) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1158))) (or (forall ((~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset Int) (v_ArrVal_1160 (Array Int Int))) (< 0 (mod (select (select (store (store .cse1 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base (store (select .cse1 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset 0)) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1160) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base) ~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.offset) 256))) (= (mod (select (select .cse1 c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.offset) 256) 0))))) is different from false [2023-11-06 22:23:47,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:47,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748782606] [2023-11-06 22:23:47,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:23:47,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334419982] [2023-11-06 22:23:47,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334419982] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:23:47,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:23:47,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-06 22:23:47,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323050141] [2023-11-06 22:23:47,304 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:23:47,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:23:47,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:47,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:23:47,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=245, Unknown=5, NotChecked=140, Total=462 [2023-11-06 22:23:47,311 INFO L87 Difference]: Start difference. First operand 172 states and 215 transitions. Second operand has 16 states, 15 states have (on average 5.2) internal successors, (78), 14 states have internal predecessors, (78), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-11-06 22:23:49,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:49,106 INFO L93 Difference]: Finished difference Result 400 states and 501 transitions. [2023-11-06 22:23:49,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:23:49,108 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 14 states have internal predecessors, (78), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 155 [2023-11-06 22:23:49,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:49,111 INFO L225 Difference]: With dead ends: 400 [2023-11-06 22:23:49,111 INFO L226 Difference]: Without dead ends: 231 [2023-11-06 22:23:49,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=185, Invalid=638, Unknown=5, NotChecked=228, Total=1056 [2023-11-06 22:23:49,114 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 398 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:49,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 451 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:23:49,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-11-06 22:23:49,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 185. [2023-11-06 22:23:49,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 151 states have (on average 1.2384105960264902) internal successors, (187), 152 states have internal predecessors, (187), 21 states have call successors, (21), 12 states have call predecessors, (21), 12 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:23:49,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 229 transitions. [2023-11-06 22:23:49,172 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 229 transitions. Word has length 155 [2023-11-06 22:23:49,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:49,173 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 229 transitions. [2023-11-06 22:23:49,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 14 states have internal predecessors, (78), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-11-06 22:23:49,174 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 229 transitions. [2023-11-06 22:23:49,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-06 22:23:49,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:49,176 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:49,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:49,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:23:49,386 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:49,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:49,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1083824539, now seen corresponding path program 1 times [2023-11-06 22:23:49,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:49,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450738882] [2023-11-06 22:23:49,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:49,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:49,457 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:23:49,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [362297140] [2023-11-06 22:23:49,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:49,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:23:49,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:49,459 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:23:49,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:23:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:49,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-06 22:23:49,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:23:51,871 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:23:52,471 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:23:53,341 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-06 22:23:54,010 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-06 22:23:54,669 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-06 22:23:55,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:55,138 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-06 22:23:55,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:55,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:55,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:55,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:55,961 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:23:55,961 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 34 [2023-11-06 22:23:56,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:23:56,087 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-06 22:23:56,088 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 20 [2023-11-06 22:23:56,121 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 203 proven. 370 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-06 22:23:56,122 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:23:56,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:23:56,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450738882] [2023-11-06 22:23:56,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:23:56,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362297140] [2023-11-06 22:23:56,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362297140] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:23:56,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:23:56,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-06 22:23:56,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739536683] [2023-11-06 22:23:56,482 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:23:56,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-06 22:23:56,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:23:56,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-06 22:23:56,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2023-11-06 22:23:56,484 INFO L87 Difference]: Start difference. First operand 185 states and 229 transitions. Second operand has 18 states, 16 states have (on average 5.1875) internal successors, (83), 17 states have internal predecessors, (83), 7 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-06 22:23:58,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:23:58,520 INFO L93 Difference]: Finished difference Result 370 states and 457 transitions. [2023-11-06 22:23:58,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-06 22:23:58,521 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.1875) internal successors, (83), 17 states have internal predecessors, (83), 7 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) Word has length 157 [2023-11-06 22:23:58,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:23:58,525 INFO L225 Difference]: With dead ends: 370 [2023-11-06 22:23:58,525 INFO L226 Difference]: Without dead ends: 193 [2023-11-06 22:23:58,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=215, Invalid=1045, Unknown=0, NotChecked=0, Total=1260 [2023-11-06 22:23:58,527 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 119 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:23:58,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 789 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:23:58,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-06 22:23:58,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 187. [2023-11-06 22:23:58,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 153 states have (on average 1.2352941176470589) internal successors, (189), 154 states have internal predecessors, (189), 21 states have call successors, (21), 12 states have call predecessors, (21), 12 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:23:58,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 231 transitions. [2023-11-06 22:23:58,577 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 231 transitions. Word has length 157 [2023-11-06 22:23:58,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:23:58,578 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 231 transitions. [2023-11-06 22:23:58,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.1875) internal successors, (83), 17 states have internal predecessors, (83), 7 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-06 22:23:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 231 transitions. [2023-11-06 22:23:58,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-06 22:23:58,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:58,581 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:23:58,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:23:58,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 22:23:58,784 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:58,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:58,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1287914723, now seen corresponding path program 1 times [2023-11-06 22:23:58,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:58,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248627203] [2023-11-06 22:23:58,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:58,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:58,831 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:23:58,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114040484] [2023-11-06 22:23:58,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:58,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:23:58,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:58,833 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:23:58,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:23:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:23:59,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 72 conjunts are in the unsatisfiable core [2023-11-06 22:23:59,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:02,137 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:24:02,974 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:24:04,068 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-06 22:24:04,978 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-06 22:24:05,894 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-06 22:24:06,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:06,701 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-06 22:24:08,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:08,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:08,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:08,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:08,095 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:24:08,096 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 34 [2023-11-06 22:24:08,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:08,242 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2023-11-06 22:24:08,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:08,386 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2023-11-06 22:24:08,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:08,468 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2023-11-06 22:24:08,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:08,564 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2023-11-06 22:24:08,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:08,791 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-06 22:24:08,791 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 20 [2023-11-06 22:24:08,841 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 203 proven. 370 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-11-06 22:24:08,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:15,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:15,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248627203] [2023-11-06 22:24:15,708 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:24:15,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114040484] [2023-11-06 22:24:15,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114040484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:15,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:24:15,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-11-06 22:24:15,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263153582] [2023-11-06 22:24:15,709 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:15,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-06 22:24:15,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:15,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-06 22:24:15,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=832, Unknown=26, NotChecked=0, Total=992 [2023-11-06 22:24:15,711 INFO L87 Difference]: Start difference. First operand 187 states and 231 transitions. Second operand has 22 states, 20 states have (on average 4.15) internal successors, (83), 21 states have internal predecessors, (83), 7 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-06 22:24:18,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:18,624 INFO L93 Difference]: Finished difference Result 464 states and 584 transitions. [2023-11-06 22:24:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-06 22:24:18,625 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 4.15) internal successors, (83), 21 states have internal predecessors, (83), 7 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) Word has length 157 [2023-11-06 22:24:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:18,628 INFO L225 Difference]: With dead ends: 464 [2023-11-06 22:24:18,629 INFO L226 Difference]: Without dead ends: 285 [2023-11-06 22:24:18,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=304, Invalid=1562, Unknown=26, NotChecked=0, Total=1892 [2023-11-06 22:24:18,631 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 524 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:18,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1063 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-06 22:24:18,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-06 22:24:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 192. [2023-11-06 22:24:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 158 states have (on average 1.2341772151898733) internal successors, (195), 159 states have internal predecessors, (195), 21 states have call successors, (21), 12 states have call predecessors, (21), 12 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:24:18,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 237 transitions. [2023-11-06 22:24:18,686 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 237 transitions. Word has length 157 [2023-11-06 22:24:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:18,687 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 237 transitions. [2023-11-06 22:24:18,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 4.15) internal successors, (83), 21 states have internal predecessors, (83), 7 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (19), 5 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-06 22:24:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 237 transitions. [2023-11-06 22:24:18,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-06 22:24:18,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:18,690 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:18,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:18,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-06 22:24:18,900 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:18,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:18,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1995935323, now seen corresponding path program 1 times [2023-11-06 22:24:18,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:18,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074984118] [2023-11-06 22:24:18,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:18,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:18,952 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:24:18,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300104905] [2023-11-06 22:24:18,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:18,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:24:18,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:18,955 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:24:18,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:24:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:19,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 71 conjunts are in the unsatisfiable core [2023-11-06 22:24:19,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:22,053 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:24:22,844 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:24:23,539 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:24:24,217 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:24:24,956 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:24:25,515 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:24:26,612 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2023-11-06 22:24:26,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:26,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:26,751 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2023-11-06 22:24:26,892 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-11-06 22:24:26,990 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 169 proven. 353 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-06 22:24:26,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:27,175 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1559 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse0 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (.cse1 (mod (select (select .cse2 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536))) (or (< 0 (+ .cse0 1)) (< 0 (+ (div .cse0 .cse1) 102)) (= (mod .cse0 .cse1) 0))))) (forall ((v_ArrVal_1559 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse3 (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (.cse4 (mod (select (select .cse5 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536))) (or (< 0 (+ 101 (div .cse3 .cse4))) (not (= (mod .cse3 .cse4) 0)))))) (forall ((v_ArrVal_1559 (Array Int Int))) (let ((.cse7 (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse6 (select (select .cse7 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset))) (or (< .cse6 0) (< 0 (+ 101 (div .cse6 (mod (select (select .cse7 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536))))))))) is different from false [2023-11-06 22:24:27,348 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1558 (Array Int Int))) (let ((.cse2 (store (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1558) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse0 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (.cse1 (mod (select (select .cse2 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536))) (or (< 0 (+ 102 (div .cse0 .cse1))) (< 0 (+ .cse0 1)) (= (mod .cse0 .cse1) 0))))) (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1558 (Array Int Int))) (let ((.cse4 (store (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1558) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse3 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset))) (or (< 0 (+ 101 (div .cse3 (mod (select (select .cse4 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536)))) (< .cse3 0))))) (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1558 (Array Int Int))) (let ((.cse7 (store (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1558) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse5 (select (select .cse7 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (.cse6 (mod (select (select .cse7 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536))) (or (< 0 (+ 101 (div .cse5 .cse6))) (not (= (mod .cse5 .cse6) 0))))))) is different from false [2023-11-06 22:24:27,539 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base))) (and (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1558 (Array Int Int)) (v_ArrVal_1556 Int)) (let ((.cse2 (store (store (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset v_ArrVal_1556)) c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1558) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse0 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (.cse1 (mod (select (select .cse2 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536))) (or (< 0 (+ 101 (div .cse0 .cse1))) (not (= (mod .cse0 .cse1) 0)))))) (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1558 (Array Int Int)) (v_ArrVal_1556 Int)) (let ((.cse6 (store (store (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset v_ArrVal_1556)) c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1558) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse4 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (.cse5 (mod (select (select .cse6 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536))) (or (< 0 (+ .cse4 1)) (= (mod .cse4 .cse5) 0) (< 0 (+ (div .cse4 .cse5) 102)))))) (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1558 (Array Int Int)) (v_ArrVal_1556 Int)) (let ((.cse8 (store (store (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset v_ArrVal_1556)) c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1558) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse7 (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset))) (or (< .cse7 0) (< 0 (+ 101 (div .cse7 (mod (select (select .cse8 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536)))))))))) is different from false [2023-11-06 22:24:28,055 WARN L839 $PredicateComparison]: unable to prove that (or (= (mod |c_ULTIMATE.start_updateVariables_#t~mem76#1| 65536) 0) (let ((.cse3 (select |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base))) (and (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1558 (Array Int Int)) (v_ArrVal_1556 Int)) (let ((.cse2 (store (store (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset v_ArrVal_1556)) c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1558) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse0 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (.cse1 (mod (select (select .cse2 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536))) (or (< 0 (+ 101 (div .cse0 .cse1))) (not (= (mod .cse0 .cse1) 0)))))) (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1558 (Array Int Int)) (v_ArrVal_1556 Int)) (let ((.cse6 (store (store (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset v_ArrVal_1556)) c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1558) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse4 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset)) (.cse5 (mod (select (select .cse6 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536))) (or (< 0 (+ .cse4 1)) (= (mod .cse4 .cse5) 0) (< 0 (+ (div .cse4 .cse5) 102)))))) (forall ((v_ArrVal_1559 (Array Int Int)) (v_ArrVal_1558 (Array Int Int)) (v_ArrVal_1556 Int)) (let ((.cse8 (store (store (store |c_#memory_int| c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base (store .cse3 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset v_ArrVal_1556)) c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1558) c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1559))) (let ((.cse7 (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset))) (or (< .cse7 0) (< 0 (+ 101 (div .cse7 (mod (select (select .cse8 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.base) c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var1_Pointer~0.offset) 65536))))))))))) is different from false [2023-11-06 22:24:28,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:28,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074984118] [2023-11-06 22:24:28,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:24:28,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300104905] [2023-11-06 22:24:28,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300104905] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:28,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:24:28,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-06 22:24:28,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447559135] [2023-11-06 22:24:28,063 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:28,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:24:28,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:28,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:24:28,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=230, Unknown=4, NotChecked=132, Total=420 [2023-11-06 22:24:28,065 INFO L87 Difference]: Start difference. First operand 192 states and 237 transitions. Second operand has 16 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-06 22:24:30,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:30,037 INFO L93 Difference]: Finished difference Result 378 states and 466 transitions. [2023-11-06 22:24:30,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-06 22:24:30,038 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 157 [2023-11-06 22:24:30,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:30,040 INFO L225 Difference]: With dead ends: 378 [2023-11-06 22:24:30,040 INFO L226 Difference]: Without dead ends: 194 [2023-11-06 22:24:30,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=151, Invalid=617, Unknown=4, NotChecked=220, Total=992 [2023-11-06 22:24:30,042 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 148 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:30,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 716 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 22:24:30,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-06 22:24:30,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 188. [2023-11-06 22:24:30,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 154 states have (on average 1.2272727272727273) internal successors, (189), 155 states have internal predecessors, (189), 21 states have call successors, (21), 12 states have call predecessors, (21), 12 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:24:30,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 231 transitions. [2023-11-06 22:24:30,100 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 231 transitions. Word has length 157 [2023-11-06 22:24:30,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:30,100 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 231 transitions. [2023-11-06 22:24:30,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 5 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-11-06 22:24:30,101 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 231 transitions. [2023-11-06 22:24:30,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-06 22:24:30,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:30,103 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:30,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:30,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:24:30,312 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:30,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:30,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1943708646, now seen corresponding path program 1 times [2023-11-06 22:24:30,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:30,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282223134] [2023-11-06 22:24:30,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:30,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:30,360 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:24:30,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558380154] [2023-11-06 22:24:30,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:30,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:24:30,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:30,362 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:24:30,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:24:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:30,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-06 22:24:30,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:31,250 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:24:31,707 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:31,945 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:32,170 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:32,443 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:32,725 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:32,996 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:33,284 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:33,542 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:33,880 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:33,942 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:33,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:33,996 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2023-11-06 22:24:34,034 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-11-06 22:24:34,052 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 1 proven. 511 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-06 22:24:34,052 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:34,112 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1700 (Array Int Int))) (= (mod (select (select (store |c_#memory_int| c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1700) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.base) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var2_Pointer~0.offset) 256) 0)) is different from false [2023-11-06 22:24:34,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:34,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282223134] [2023-11-06 22:24:34,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:24:34,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558380154] [2023-11-06 22:24:34,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558380154] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:24:34,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:24:34,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-06 22:24:34,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615975960] [2023-11-06 22:24:34,263 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:24:34,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-06 22:24:34,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:34,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 22:24:34,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=222, Unknown=11, NotChecked=32, Total=342 [2023-11-06 22:24:34,265 INFO L87 Difference]: Start difference. First operand 188 states and 231 transitions. Second operand has 15 states, 14 states have (on average 5.714285714285714) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-11-06 22:24:35,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:35,355 INFO L93 Difference]: Finished difference Result 375 states and 459 transitions. [2023-11-06 22:24:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:24:35,358 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.714285714285714) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) Word has length 157 [2023-11-06 22:24:35,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:35,359 INFO L225 Difference]: With dead ends: 375 [2023-11-06 22:24:35,359 INFO L226 Difference]: Without dead ends: 195 [2023-11-06 22:24:35,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=203, Invalid=545, Unknown=12, NotChecked=52, Total=812 [2023-11-06 22:24:35,361 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 201 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:35,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 451 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:24:35,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-06 22:24:35,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 188. [2023-11-06 22:24:35,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 154 states have (on average 1.2142857142857142) internal successors, (187), 155 states have internal predecessors, (187), 21 states have call successors, (21), 12 states have call predecessors, (21), 12 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:24:35,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 229 transitions. [2023-11-06 22:24:35,398 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 229 transitions. Word has length 157 [2023-11-06 22:24:35,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:35,398 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 229 transitions. [2023-11-06 22:24:35,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.714285714285714) internal successors, (80), 13 states have internal predecessors, (80), 6 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (19), 5 states have call predecessors, (19), 6 states have call successors, (19) [2023-11-06 22:24:35,399 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 229 transitions. [2023-11-06 22:24:35,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-06 22:24:35,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:35,400 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:35,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:24:35,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:24:35,607 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:35,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:35,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2132403932, now seen corresponding path program 1 times [2023-11-06 22:24:35,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:35,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014320337] [2023-11-06 22:24:35,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:35,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:35,650 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:24:35,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425671588] [2023-11-06 22:24:35,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:35,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:24:35,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:35,652 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:24:35,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:24:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:36,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 113 conjunts are in the unsatisfiable core [2023-11-06 22:24:36,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:41,314 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:24:42,735 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:24:44,497 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-06 22:24:45,786 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-06 22:24:47,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:47,772 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 28 [2023-11-06 22:24:50,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:50,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:50,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:50,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:50,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:50,211 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 109 [2023-11-06 22:24:51,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:51,023 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 124 [2023-11-06 22:24:51,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:51,940 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 122 [2023-11-06 22:24:52,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:52,526 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 122 [2023-11-06 22:24:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:52,827 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 122 [2023-11-06 22:24:53,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:53,721 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 109 [2023-11-06 22:24:54,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:54,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:54,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:54,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:54,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:24:54,218 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 75 [2023-11-06 22:24:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 271 proven. 276 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-11-06 22:24:54,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:24:54,839 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1842 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1842))) (let ((.cse0 (mod (+ (* (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset) 255) (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset)) 256)) (.cse1 (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))) (or (= .cse0 (+ 256 .cse1)) (= .cse0 .cse1))))) (forall ((v_ArrVal_1842 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1842))) (let ((.cse3 (mod (+ (* (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset) 255) (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset)) 256))) (or (< 127 .cse3) (= .cse3 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)))))) (forall ((v_ArrVal_1842 (Array Int Int))) (let ((.cse6 (store |c_#memory_int| c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1842))) (let ((.cse5 (mod (+ (* (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset) 255) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset)) 256))) (or (= .cse5 (+ 256 (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset))) (< .cse5 128)))))) is different from false [2023-11-06 22:24:55,987 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1841 (Array Int Int)) (v_ArrVal_1840 (Array Int Int))) (let ((.cse2 (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_1840) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1841))) (or (forall ((v_ArrVal_1842 (Array Int Int))) (let ((.cse0 (store .cse2 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1842))) (let ((.cse1 (mod (+ (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset))) 256))) (or (= (+ 256 (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) .cse1) (< .cse1 128))))) (< (select (select .cse2 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 2)))) (forall ((v_ArrVal_1841 (Array Int Int)) (v_ArrVal_1840 (Array Int Int))) (let ((.cse5 (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_1840) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1841))) (or (forall ((v_ArrVal_1842 (Array Int Int))) (let ((.cse4 (store .cse5 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1842))) (let ((.cse3 (mod (+ (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset))) 256))) (or (= .cse3 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (< 127 .cse3))))) (< (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 2)))) (forall ((v_ArrVal_1841 (Array Int Int)) (v_ArrVal_1840 (Array Int Int))) (let ((.cse9 (store (store |c_#memory_int| c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_1840) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1841))) (or (forall ((v_ArrVal_1842 (Array Int Int))) (let ((.cse8 (store .cse9 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1842))) (let ((.cse7 (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (.cse6 (mod (+ (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) (* 255 (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset))) 256))) (or (= .cse6 .cse7) (= (+ 256 .cse7) .cse6))))) (< (select (select .cse9 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 2))))) is different from false [2023-11-06 22:25:01,579 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1838 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1838))) (or (< (select (select .cse0 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_1841 (Array Int Int)) (v_ArrVal_1840 (Array Int Int)) (v_ArrVal_1839 (Array Int Int))) (let ((.cse1 (store (store (store .cse0 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1839) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_1840) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1841))) (or (< (select (select .cse1 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 2) (forall ((v_ArrVal_1842 (Array Int Int))) (let ((.cse4 (store .cse1 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1842))) (let ((.cse3 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (.cse2 (mod (+ (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse4 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= .cse2 .cse3) (= (+ 256 .cse3) .cse2))))))))))) (forall ((v_ArrVal_1838 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1838))) (or (< (select (select .cse5 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_1841 (Array Int Int)) (v_ArrVal_1840 (Array Int Int)) (v_ArrVal_1839 (Array Int Int))) (let ((.cse6 (store (store (store .cse5 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1839) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_1840) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1841))) (or (< (select (select .cse6 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 2) (forall ((v_ArrVal_1842 (Array Int Int))) (let ((.cse8 (store .cse6 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1842))) (let ((.cse7 (mod (+ (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (= .cse7 (select (select .cse8 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) (< 127 .cse7))))))))))) (forall ((v_ArrVal_1838 (Array Int Int))) (let ((.cse9 (store |c_#memory_int| c_~double_Array_0_arraydouble_Array_0arrayVar2_Pointer~0.base v_ArrVal_1838))) (or (< (select (select .cse9 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset) 0) (forall ((v_ArrVal_1841 (Array Int Int)) (v_ArrVal_1840 (Array Int Int)) (v_ArrVal_1839 (Array Int Int))) (let ((.cse10 (store (store (store .cse9 c_~signed_short_int_Array_0_arraysigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1839) c_~BOOL_unsigned_char_Array_0_arrayBOOL_unsigned_char_Array_0Var0_Pointer~0.base v_ArrVal_1840) c_~float_Array_0_arrayfloat_Array_0arrayVar0_Pointer~0.base v_ArrVal_1841))) (or (< (select (select .cse10 c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var0_Pointer~0.offset) 2) (forall ((v_ArrVal_1842 (Array Int Int))) (let ((.cse12 (store .cse10 c_~unsigned_short_int_Array_0_arrayunsigned_short_int_Array_0Var0_Pointer~0.base v_ArrVal_1842))) (let ((.cse11 (mod (+ (select (select .cse12 c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var3_Pointer~0.offset) (* 255 (select (select .cse12 c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var2_Pointer~0.offset)) (select (select .cse12 c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var4_Pointer~0.offset)) 256))) (or (< .cse11 128) (= (+ 256 (select (select .cse12 c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.base) c_~signed_char_Array_0_arraysigned_char_Array_0Var5_Pointer~0.offset)) .cse11)))))))))))) is different from false [2023-11-06 22:25:15,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:25:15,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014320337] [2023-11-06 22:25:15,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:25:15,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425671588] [2023-11-06 22:25:15,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425671588] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:25:15,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:25:15,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2023-11-06 22:25:15,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639081868] [2023-11-06 22:25:15,147 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:25:15,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-11-06 22:25:15,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:25:15,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-11-06 22:25:15,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=2009, Unknown=39, NotChecked=282, Total=2550 [2023-11-06 22:25:15,150 INFO L87 Difference]: Start difference. First operand 188 states and 229 transitions. Second operand has 35 states, 32 states have (on average 2.78125) internal successors, (89), 32 states have internal predecessors, (89), 9 states have call successors, (19), 7 states have call predecessors, (19), 9 states have return successors, (19), 7 states have call predecessors, (19), 9 states have call successors, (19) [2023-11-06 22:25:29,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:25:29,741 INFO L93 Difference]: Finished difference Result 466 states and 575 transitions. [2023-11-06 22:25:29,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-06 22:25:29,742 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 32 states have (on average 2.78125) internal successors, (89), 32 states have internal predecessors, (89), 9 states have call successors, (19), 7 states have call predecessors, (19), 9 states have return successors, (19), 7 states have call predecessors, (19), 9 states have call successors, (19) Word has length 157 [2023-11-06 22:25:29,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:25:29,744 INFO L225 Difference]: With dead ends: 466 [2023-11-06 22:25:29,744 INFO L226 Difference]: Without dead ends: 286 [2023-11-06 22:25:29,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1251 ImplicationChecksByTransitivity, 30.5s TimeCoverageRelationStatistics Valid=851, Invalid=5441, Unknown=40, NotChecked=474, Total=6806 [2023-11-06 22:25:29,748 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 807 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 2610 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:25:29,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1852 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2610 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-06 22:25:29,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-11-06 22:25:29,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 200. [2023-11-06 22:25:29,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 166 states have (on average 1.2108433734939759) internal successors, (201), 167 states have internal predecessors, (201), 21 states have call successors, (21), 12 states have call predecessors, (21), 12 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-06 22:25:29,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 243 transitions. [2023-11-06 22:25:29,799 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 243 transitions. Word has length 157 [2023-11-06 22:25:29,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:25:29,799 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 243 transitions. [2023-11-06 22:25:29,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 32 states have (on average 2.78125) internal successors, (89), 32 states have internal predecessors, (89), 9 states have call successors, (19), 7 states have call predecessors, (19), 9 states have return successors, (19), 7 states have call predecessors, (19), 9 states have call successors, (19) [2023-11-06 22:25:29,800 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 243 transitions. [2023-11-06 22:25:29,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-06 22:25:29,801 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:25:29,802 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:25:29,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-06 22:25:30,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 22:25:30,011 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:25:30,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:25:30,011 INFO L85 PathProgramCache]: Analyzing trace with hash 168418658, now seen corresponding path program 1 times [2023-11-06 22:25:30,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:25:30,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062022700] [2023-11-06 22:25:30,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:25:30,050 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:25:30,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640058335] [2023-11-06 22:25:30,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:25:30,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:25:30,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:30,052 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:25:30,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92cffbd9-191d-4bc4-aeed-beb99b0ed5d7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-06 22:25:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:25:30,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 140 conjunts are in the unsatisfiable core [2023-11-06 22:25:30,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:25:35,298 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:25:36,690 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11