./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 647c2d42f3d9d1fd2cb1f6cf3d4c2bf6004a69ab4ab9379121b25a3c16e8049d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:18:29,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:18:29,362 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 03:18:29,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:18:29,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:18:29,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:18:29,390 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:18:29,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:18:29,391 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:18:29,392 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:18:29,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:18:29,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:18:29,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:18:29,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:18:29,395 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:18:29,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:18:29,396 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:18:29,396 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:18:29,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:18:29,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:18:29,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:18:29,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:18:29,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:18:29,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:18:29,400 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:18:29,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:18:29,401 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:18:29,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:18:29,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:18:29,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:18:29,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:18:29,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:18:29,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:18:29,404 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:18:29,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:18:29,404 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:18:29,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:18:29,404 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:18:29,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:18:29,405 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:18:29,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:18:29,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:18:29,405 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_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647c2d42f3d9d1fd2cb1f6cf3d4c2bf6004a69ab4ab9379121b25a3c16e8049d [2023-11-29 03:18:29,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:18:29,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:18:29,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:18:29,637 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:18:29,637 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:18:29,639 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i [2023-11-29 03:18:32,504 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:18:32,689 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:18:32,690 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i [2023-11-29 03:18:32,699 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/data/4deb003d0/ef5f1afe119a4edc825a093801fafa4c/FLAG9fe468d40 [2023-11-29 03:18:32,711 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/data/4deb003d0/ef5f1afe119a4edc825a093801fafa4c [2023-11-29 03:18:32,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:18:32,715 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:18:32,716 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:18:32,716 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:18:32,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:18:32,721 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,722 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3e8a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32, skipping insertion in model container [2023-11-29 03:18:32,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,746 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:18:32,866 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_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i[917,930] [2023-11-29 03:18:32,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:18:32,919 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:18:32,928 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_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-66.i[917,930] [2023-11-29 03:18:32,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:18:32,969 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:18:32,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32 WrapperNode [2023-11-29 03:18:32,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:18:32,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:18:32,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:18:32,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:18:32,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:32,987 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,023 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-11-29 03:18:33,024 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:18:33,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:18:33,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:18:33,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:18:33,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,039 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,056 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:18:33,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:18:33,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:18:33,081 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:18:33,081 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:18:33,082 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (1/1) ... [2023-11-29 03:18:33,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:18:33,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:18:33,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:18:33,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:18:33,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:18:33,146 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:18:33,147 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:18:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:18:33,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:18:33,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:18:33,209 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:18:33,210 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:18:33,460 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:18:33,495 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:18:33,496 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:18:33,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:18:33 BoogieIcfgContainer [2023-11-29 03:18:33,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:18:33,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:18:33,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:18:33,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:18:33,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:18:32" (1/3) ... [2023-11-29 03:18:33,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffd4eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:18:33, skipping insertion in model container [2023-11-29 03:18:33,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:18:32" (2/3) ... [2023-11-29 03:18:33,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffd4eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:18:33, skipping insertion in model container [2023-11-29 03:18:33,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:18:33" (3/3) ... [2023-11-29 03:18:33,506 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-66.i [2023-11-29 03:18:33,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:18:33,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:18:33,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:18:33,579 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b1c63ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:18:33,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:18:33,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 03:18:33,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 03:18:33,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:33,593 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:33,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:18:33,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:33,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1944780512, now seen corresponding path program 1 times [2023-11-29 03:18:33,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:33,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505810270] [2023-11-29 03:18:33,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:33,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:18:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:18:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:18:33,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:18:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:18:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:18:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:18:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:18:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:18:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:18:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:18:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:18:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:18:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:18:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:18:33,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:33,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505810270] [2023-11-29 03:18:33,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505810270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:33,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:33,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:18:33,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103102865] [2023-11-29 03:18:33,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:33,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:18:33,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:33,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:18:33,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:18:33,960 INFO L87 Difference]: Start difference. First operand has 39 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 03:18:33,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:33,995 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2023-11-29 03:18:33,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:18:33,998 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 85 [2023-11-29 03:18:33,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:34,004 INFO L225 Difference]: With dead ends: 75 [2023-11-29 03:18:34,004 INFO L226 Difference]: Without dead ends: 37 [2023-11-29 03:18:34,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:18:34,012 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:34,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:18:34,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-29 03:18:34,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-29 03:18:34,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 03:18:34,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 55 transitions. [2023-11-29 03:18:34,054 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 55 transitions. Word has length 85 [2023-11-29 03:18:34,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:34,054 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 55 transitions. [2023-11-29 03:18:34,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 03:18:34,055 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2023-11-29 03:18:34,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 03:18:34,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:34,059 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:34,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:18:34,060 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:18:34,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:34,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1661919200, now seen corresponding path program 1 times [2023-11-29 03:18:34,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:34,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81278106] [2023-11-29 03:18:34,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:34,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:18:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:18:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:18:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:18:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:18:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:18:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:18:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:18:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:18:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:18:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:18:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:18:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:18:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:18:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:18:34,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:34,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81278106] [2023-11-29 03:18:34,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81278106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:34,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:34,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:18:34,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805399695] [2023-11-29 03:18:34,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:34,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:18:34,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:34,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:18:34,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:18:34,452 INFO L87 Difference]: Start difference. First operand 37 states and 55 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:18:34,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:34,498 INFO L93 Difference]: Finished difference Result 109 states and 163 transitions. [2023-11-29 03:18:34,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:18:34,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 85 [2023-11-29 03:18:34,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:34,502 INFO L225 Difference]: With dead ends: 109 [2023-11-29 03:18:34,502 INFO L226 Difference]: Without dead ends: 73 [2023-11-29 03:18:34,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:18:34,505 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 26 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 94 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 [2023-11-29 03:18:34,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 94 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:18:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-29 03:18:34,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2023-11-29 03:18:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 03:18:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 104 transitions. [2023-11-29 03:18:34,528 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 104 transitions. Word has length 85 [2023-11-29 03:18:34,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:34,529 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 104 transitions. [2023-11-29 03:18:34,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:18:34,529 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 104 transitions. [2023-11-29 03:18:34,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 03:18:34,531 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:34,531 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:34,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:18:34,532 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:18:34,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:34,532 INFO L85 PathProgramCache]: Analyzing trace with hash -20088315, now seen corresponding path program 1 times [2023-11-29 03:18:34,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:34,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448131764] [2023-11-29 03:18:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:34,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:18:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:18:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:18:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:18:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:18:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:18:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:18:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:18:34,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:18:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:18:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:18:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:18:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:18:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:34,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:18:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:35,004 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:18:35,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:35,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448131764] [2023-11-29 03:18:35,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448131764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:35,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:35,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:18:35,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191506179] [2023-11-29 03:18:35,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:35,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:18:35,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:35,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:18:35,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:18:35,008 INFO L87 Difference]: Start difference. First operand 70 states and 104 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 03:18:35,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:35,225 INFO L93 Difference]: Finished difference Result 183 states and 271 transitions. [2023-11-29 03:18:35,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:18:35,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 86 [2023-11-29 03:18:35,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:35,229 INFO L225 Difference]: With dead ends: 183 [2023-11-29 03:18:35,229 INFO L226 Difference]: Without dead ends: 114 [2023-11-29 03:18:35,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:18:35,231 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 68 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:35,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 162 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:18:35,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-29 03:18:35,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2023-11-29 03:18:35,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 03:18:35,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 155 transitions. [2023-11-29 03:18:35,261 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 155 transitions. Word has length 86 [2023-11-29 03:18:35,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:35,262 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 155 transitions. [2023-11-29 03:18:35,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 03:18:35,262 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 155 transitions. [2023-11-29 03:18:35,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 03:18:35,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:35,264 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:35,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:18:35,264 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:18:35,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:35,265 INFO L85 PathProgramCache]: Analyzing trace with hash -20147897, now seen corresponding path program 1 times [2023-11-29 03:18:35,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:35,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877816119] [2023-11-29 03:18:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:35,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:18:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:18:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:18:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:18:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:18:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:18:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:18:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:18:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:18:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:18:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:18:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:18:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:18:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:18:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:40,312 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:18:40,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:40,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877816119] [2023-11-29 03:18:40,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877816119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:40,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:40,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:18:40,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462443406] [2023-11-29 03:18:40,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:40,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:18:40,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:40,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:18:40,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:18:40,315 INFO L87 Difference]: Start difference. First operand 104 states and 155 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 03:18:41,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:41,120 INFO L93 Difference]: Finished difference Result 110 states and 161 transitions. [2023-11-29 03:18:41,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:18:41,121 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 86 [2023-11-29 03:18:41,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:41,123 INFO L225 Difference]: With dead ends: 110 [2023-11-29 03:18:41,123 INFO L226 Difference]: Without dead ends: 108 [2023-11-29 03:18:41,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:18:41,125 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 54 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:41,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 197 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:18:41,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-29 03:18:41,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2023-11-29 03:18:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 60 states have internal predecessors, (73), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 03:18:41,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 157 transitions. [2023-11-29 03:18:41,145 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 157 transitions. Word has length 86 [2023-11-29 03:18:41,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:41,145 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 157 transitions. [2023-11-29 03:18:41,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 03:18:41,146 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 157 transitions. [2023-11-29 03:18:41,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 03:18:41,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:41,147 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:41,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:18:41,148 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:18:41,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:41,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1204557765, now seen corresponding path program 1 times [2023-11-29 03:18:41,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:41,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780450469] [2023-11-29 03:18:41,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:41,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:18:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:18:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:18:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:18:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:18:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:18:46,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:18:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:18:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:18:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:18:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:18:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:18:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:18:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:18:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:46,676 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:18:46,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:46,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780450469] [2023-11-29 03:18:46,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780450469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:46,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:46,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:18:46,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509297623] [2023-11-29 03:18:46,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:46,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:18:46,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:46,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:18:46,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:18:46,679 INFO L87 Difference]: Start difference. First operand 106 states and 157 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:18:48,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:48,373 INFO L93 Difference]: Finished difference Result 146 states and 208 transitions. [2023-11-29 03:18:48,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:18:48,374 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-11-29 03:18:48,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:48,376 INFO L225 Difference]: With dead ends: 146 [2023-11-29 03:18:48,376 INFO L226 Difference]: Without dead ends: 144 [2023-11-29 03:18:48,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:18:48,378 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 110 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:48,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 231 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:18:48,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-29 03:18:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 113. [2023-11-29 03:18:48,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 67 states have internal predecessors, (85), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 03:18:48,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 169 transitions. [2023-11-29 03:18:48,402 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 169 transitions. Word has length 86 [2023-11-29 03:18:48,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:48,402 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 169 transitions. [2023-11-29 03:18:48,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:18:48,403 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 169 transitions. [2023-11-29 03:18:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 03:18:48,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:48,404 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:48,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:18:48,404 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:18:48,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:48,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1206404807, now seen corresponding path program 1 times [2023-11-29 03:18:48,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:48,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870277874] [2023-11-29 03:18:48,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:48,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:18:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:18:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:18:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:18:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:18:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:18:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:18:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:18:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:18:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:18:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:18:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:18:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:18:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:18:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:18:48,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:48,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870277874] [2023-11-29 03:18:48,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870277874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:48,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:48,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:18:48,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782695173] [2023-11-29 03:18:48,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:48,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:18:48,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:48,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:18:48,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:18:48,518 INFO L87 Difference]: Start difference. First operand 113 states and 169 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:18:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:48,637 INFO L93 Difference]: Finished difference Result 186 states and 266 transitions. [2023-11-29 03:18:48,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:18:48,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-11-29 03:18:48,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:48,640 INFO L225 Difference]: With dead ends: 186 [2023-11-29 03:18:48,640 INFO L226 Difference]: Without dead ends: 148 [2023-11-29 03:18:48,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:18:48,641 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:48,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 140 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:18:48,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-29 03:18:48,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 126. [2023-11-29 03:18:48,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 77 states have internal predecessors, (93), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 03:18:48,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 177 transitions. [2023-11-29 03:18:48,665 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 177 transitions. Word has length 86 [2023-11-29 03:18:48,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:48,666 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 177 transitions. [2023-11-29 03:18:48,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:18:48,666 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 177 transitions. [2023-11-29 03:18:48,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 03:18:48,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:48,667 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:48,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:18:48,668 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:18:48,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:48,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1261816067, now seen corresponding path program 1 times [2023-11-29 03:18:48,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:48,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353974764] [2023-11-29 03:18:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:48,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:18:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:18:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:18:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:18:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:18:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:18:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:18:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:18:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:18:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:18:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:18:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:18:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:18:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:18:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:18:58,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:58,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353974764] [2023-11-29 03:18:58,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353974764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:58,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:58,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 03:18:58,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468027619] [2023-11-29 03:18:58,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:58,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:18:58,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:58,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:18:58,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:18:58,963 INFO L87 Difference]: Start difference. First operand 126 states and 177 transitions. Second operand has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:18:59,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:59,957 INFO L93 Difference]: Finished difference Result 165 states and 221 transitions. [2023-11-29 03:18:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:18:59,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-11-29 03:18:59,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:59,960 INFO L225 Difference]: With dead ends: 165 [2023-11-29 03:18:59,960 INFO L226 Difference]: Without dead ends: 163 [2023-11-29 03:18:59,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:18:59,961 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 93 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:59,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 226 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:18:59,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-29 03:18:59,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 131. [2023-11-29 03:18:59,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 81 states have (on average 1.2098765432098766) internal successors, (98), 81 states have internal predecessors, (98), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 03:18:59,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 182 transitions. [2023-11-29 03:18:59,986 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 182 transitions. Word has length 86 [2023-11-29 03:18:59,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:59,987 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 182 transitions. [2023-11-29 03:18:59,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:18:59,987 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 182 transitions. [2023-11-29 03:18:59,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 03:18:59,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:59,988 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:59,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:18:59,989 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:18:59,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:59,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1263663109, now seen corresponding path program 1 times [2023-11-29 03:18:59,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:59,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879271376] [2023-11-29 03:18:59,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:59,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:19:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:19:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:19:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:19:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:19:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:19:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:19:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:19:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:19:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:19:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:19:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:19:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:19:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:19:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:19:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:02,242 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:19:02,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:19:02,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879271376] [2023-11-29 03:19:02,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879271376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:19:02,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:19:02,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:19:02,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061708283] [2023-11-29 03:19:02,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:19:02,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:19:02,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:19:02,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:19:02,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:19:02,244 INFO L87 Difference]: Start difference. First operand 131 states and 182 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:19:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:19:03,252 INFO L93 Difference]: Finished difference Result 206 states and 280 transitions. [2023-11-29 03:19:03,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:19:03,253 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-11-29 03:19:03,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:19:03,254 INFO L225 Difference]: With dead ends: 206 [2023-11-29 03:19:03,254 INFO L226 Difference]: Without dead ends: 165 [2023-11-29 03:19:03,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:19:03,256 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 75 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:19:03,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 259 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:19:03,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-29 03:19:03,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 129. [2023-11-29 03:19:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 79 states have internal predecessors, (94), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 03:19:03,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 178 transitions. [2023-11-29 03:19:03,279 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 178 transitions. Word has length 86 [2023-11-29 03:19:03,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:19:03,279 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 178 transitions. [2023-11-29 03:19:03,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:19:03,280 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 178 transitions. [2023-11-29 03:19:03,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 03:19:03,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:19:03,281 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:19:03,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 03:19:03,281 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:19:03,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:19:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1313450494, now seen corresponding path program 1 times [2023-11-29 03:19:03,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:19:03,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284925071] [2023-11-29 03:19:03,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:19:03,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:19:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:19:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:19:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:19:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:19:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:19:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:19:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:19:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:19:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:19:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:19:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:19:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:19:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:19:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:19:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:06,144 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:19:06,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:19:06,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284925071] [2023-11-29 03:19:06,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284925071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:19:06,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:19:06,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:19:06,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653538184] [2023-11-29 03:19:06,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:19:06,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:19:06,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:19:06,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:19:06,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:19:06,147 INFO L87 Difference]: Start difference. First operand 129 states and 178 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:19:07,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:19:07,337 INFO L93 Difference]: Finished difference Result 154 states and 206 transitions. [2023-11-29 03:19:07,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:19:07,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-11-29 03:19:07,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:19:07,340 INFO L225 Difference]: With dead ends: 154 [2023-11-29 03:19:07,340 INFO L226 Difference]: Without dead ends: 152 [2023-11-29 03:19:07,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:19:07,341 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 73 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:19:07,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 229 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:19:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-29 03:19:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 131. [2023-11-29 03:19:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 81 states have (on average 1.1975308641975309) internal successors, (97), 81 states have internal predecessors, (97), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 03:19:07,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 181 transitions. [2023-11-29 03:19:07,369 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 181 transitions. Word has length 87 [2023-11-29 03:19:07,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:19:07,369 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 181 transitions. [2023-11-29 03:19:07,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:19:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 181 transitions. [2023-11-29 03:19:07,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 03:19:07,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:19:07,371 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:19:07,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 03:19:07,371 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:19:07,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:19:07,372 INFO L85 PathProgramCache]: Analyzing trace with hash 461556868, now seen corresponding path program 1 times [2023-11-29 03:19:07,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:19:07,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211617774] [2023-11-29 03:19:07,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:19:07,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:19:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:19:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:19:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:19:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:19:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:19:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:19:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:19:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:19:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:19:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:19:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:19:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:19:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:19:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:19:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:19:11,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:19:11,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211617774] [2023-11-29 03:19:11,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211617774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:19:11,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:19:11,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 03:19:11,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395998272] [2023-11-29 03:19:11,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:19:12,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:19:12,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:19:12,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:19:12,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:19:12,001 INFO L87 Difference]: Start difference. First operand 131 states and 181 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:19:13,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:19:13,635 INFO L93 Difference]: Finished difference Result 150 states and 200 transitions. [2023-11-29 03:19:13,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:19:13,636 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-11-29 03:19:13,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:19:13,638 INFO L225 Difference]: With dead ends: 150 [2023-11-29 03:19:13,638 INFO L226 Difference]: Without dead ends: 148 [2023-11-29 03:19:13,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:19:13,639 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 77 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:19:13,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 228 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:19:13,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-29 03:19:13,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 129. [2023-11-29 03:19:13,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 79 states have internal predecessors, (94), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 03:19:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 178 transitions. [2023-11-29 03:19:13,668 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 178 transitions. Word has length 87 [2023-11-29 03:19:13,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:19:13,669 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 178 transitions. [2023-11-29 03:19:13,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 03:19:13,669 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 178 transitions. [2023-11-29 03:19:13,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-29 03:19:13,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:19:13,672 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:19:13,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 03:19:13,672 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:19:13,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:19:13,673 INFO L85 PathProgramCache]: Analyzing trace with hash 324235561, now seen corresponding path program 1 times [2023-11-29 03:19:13,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:19:13,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232788761] [2023-11-29 03:19:13,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:19:13,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:19:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:19:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:19:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:19:19,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:19:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:19:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:19:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:19:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:19:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:19:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:19:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:19:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:19:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:19:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:19:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 03:19:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 03:19:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 03:19:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 03:19:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 03:19:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-29 03:19:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 03:19:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 03:19:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-29 03:19:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-29 03:19:19,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-29 03:19:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 03:19:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-29 03:19:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-29 03:19:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-29 03:19:19,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:19:19,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232788761] [2023-11-29 03:19:19,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232788761] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:19:19,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107642335] [2023-11-29 03:19:19,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:19:19,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:19:19,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:19:19,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:19:19,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:19:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:19,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:19:19,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:19:19,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 914 proven. 33 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2023-11-29 03:19:19,735 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:19:19,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 31 proven. 75 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2023-11-29 03:19:19,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107642335] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:19:19,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:19:19,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 21 [2023-11-29 03:19:19,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293871944] [2023-11-29 03:19:19,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:19:19,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 03:19:19,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:19:19,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 03:19:19,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:19:19,974 INFO L87 Difference]: Start difference. First operand 129 states and 178 transitions. Second operand has 21 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 21 states have internal predecessors, (82), 5 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) [2023-11-29 03:19:26,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:19:26,818 INFO L93 Difference]: Finished difference Result 288 states and 378 transitions. [2023-11-29 03:19:26,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-11-29 03:19:26,819 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 21 states have internal predecessors, (82), 5 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) Word has length 170 [2023-11-29 03:19:26,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:19:26,820 INFO L225 Difference]: With dead ends: 288 [2023-11-29 03:19:26,820 INFO L226 Difference]: Without dead ends: 245 [2023-11-29 03:19:26,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1611 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=825, Invalid=4577, Unknown=0, NotChecked=0, Total=5402 [2023-11-29 03:19:26,824 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 395 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:19:26,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 363 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:19:26,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-11-29 03:19:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 144. [2023-11-29 03:19:26,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 90 states have internal predecessors, (103), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 03:19:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2023-11-29 03:19:26,856 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 170 [2023-11-29 03:19:26,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:19:26,856 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2023-11-29 03:19:26,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.9047619047619047) internal successors, (82), 21 states have internal predecessors, (82), 5 states have call successors, (78), 3 states have call predecessors, (78), 5 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) [2023-11-29 03:19:26,857 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2023-11-29 03:19:26,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 03:19:26,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:19:26,859 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:19:26,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:19:27,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:19:27,059 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:19:27,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:19:27,060 INFO L85 PathProgramCache]: Analyzing trace with hash -774169141, now seen corresponding path program 1 times [2023-11-29 03:19:27,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:19:27,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482312723] [2023-11-29 03:19:27,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:19:27,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:19:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:19:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:19:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 03:19:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 03:19:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 03:19:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:19:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 03:19:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 03:19:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 03:19:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 03:19:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:19:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 03:19:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 03:19:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 03:19:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 03:19:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 03:19:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 03:19:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 03:19:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 03:19:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-29 03:19:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 03:19:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 03:19:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-29 03:19:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-29 03:19:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-29 03:19:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 03:19:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-29 03:19:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-29 03:19:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,562 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2023-11-29 03:19:30,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:19:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482312723] [2023-11-29 03:19:30,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482312723] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:19:30,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771697246] [2023-11-29 03:19:30,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:19:30,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:19:30,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:19:30,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:19:30,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfd3c75f-15c2-48d1-a099-d83a216b8a3d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:19:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:30,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-29 03:19:30,682 INFO L285 TraceCheckSpWp]: Computing forward predicates...