./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.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_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/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_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/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_67b5afe1-dc4e-4312-b800-4a92e7819aca/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 aa8cc58df8fe09b61997a2de9d9c5e7a83d2492c15b287abd5439e2c29784fc7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:58:01,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:58:01,562 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:58:01,567 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:58:01,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:58:01,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:58:01,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:58:01,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:58:01,591 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:58:01,592 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:58:01,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:58:01,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:58:01,594 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:58:01,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:58:01,595 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:58:01,595 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:58:01,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:58:01,597 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:58:01,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:58:01,598 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:58:01,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:58:01,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:58:01,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:58:01,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:58:01,600 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:58:01,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:58:01,601 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:58:01,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:58:01,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:58:01,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:58:01,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:58:01,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:58:01,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:58:01,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:58:01,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:58:01,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:58:01,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:58:01,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:58:01,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:58:01,605 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:58:01,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:58:01,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:58:01,606 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_67b5afe1-dc4e-4312-b800-4a92e7819aca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa8cc58df8fe09b61997a2de9d9c5e7a83d2492c15b287abd5439e2c29784fc7 [2023-11-29 05:58:01,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:58:01,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:58:01,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:58:01,826 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:58:01,826 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:58:01,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.i [2023-11-29 05:58:04,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:58:04,858 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:58:04,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.i [2023-11-29 05:58:04,871 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/data/59bc32eea/5d1aadd9f7ba489a9ac66a0e50a514b1/FLAG250c008ae [2023-11-29 05:58:04,885 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/data/59bc32eea/5d1aadd9f7ba489a9ac66a0e50a514b1 [2023-11-29 05:58:04,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:58:04,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:58:04,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:58:04,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:58:04,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:58:04,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:58:04" (1/1) ... [2023-11-29 05:58:04,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dfe348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:04, skipping insertion in model container [2023-11-29 05:58:04,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:58:04" (1/1) ... [2023-11-29 05:58:04,921 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:58:05,042 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_67b5afe1-dc4e-4312-b800-4a92e7819aca/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.i[915,928] [2023-11-29 05:58:05,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:58:05,094 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:58:05,107 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_67b5afe1-dc4e-4312-b800-4a92e7819aca/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.i[915,928] [2023-11-29 05:58:05,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:58:05,146 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:58:05,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05 WrapperNode [2023-11-29 05:58:05,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:58:05,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:58:05,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:58:05,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:58:05,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,198 INFO L138 Inliner]: procedures = 29, calls = 111, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 320 [2023-11-29 05:58:05,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:58:05,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:58:05,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:58:05,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:58:05,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,218 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,242 INFO L175 MemorySlicer]: Split 86 memory accesses to 10 slices as follows [2, 10, 18, 6, 3, 3, 14, 8, 14, 8]. 21 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 13 writes are split as follows [0, 4, 1, 1, 1, 1, 1, 1, 2, 1]. [2023-11-29 05:58:05,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,268 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:58:05,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:58:05,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:58:05,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:58:05,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (1/1) ... [2023-11-29 05:58:05,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:58:05,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:05,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:58:05,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:58:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:58:05,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-29 05:58:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-29 05:58:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-29 05:58:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-29 05:58:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-29 05:58:05,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-29 05:58:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-29 05:58:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-29 05:58:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-29 05:58:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2023-11-29 05:58:05,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:58:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:58:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:58:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 05:58:05,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 05:58:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 05:58:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 05:58:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 05:58:05,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 05:58:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 05:58:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-29 05:58:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-29 05:58:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-29 05:58:05,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-29 05:58:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-29 05:58:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-11-29 05:58:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-11-29 05:58:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2023-11-29 05:58:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2023-11-29 05:58:05,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2023-11-29 05:58:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:58:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:58:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 05:58:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 05:58:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 05:58:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 05:58:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 05:58:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 05:58:05,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2023-11-29 05:58:05,348 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 05:58:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 05:58:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:58:05,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:58:05,513 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:58:05,515 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:58:05,832 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:58:05,867 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:58:05,867 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:58:05,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:58:05 BoogieIcfgContainer [2023-11-29 05:58:05,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:58:05,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:58:05,871 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:58:05,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:58:05,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:58:04" (1/3) ... [2023-11-29 05:58:05,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7abee7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:58:05, skipping insertion in model container [2023-11-29 05:58:05,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:05" (2/3) ... [2023-11-29 05:58:05,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7abee7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:58:05, skipping insertion in model container [2023-11-29 05:58:05,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:58:05" (3/3) ... [2023-11-29 05:58:05,877 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-9.i [2023-11-29 05:58:05,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:58:05,892 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:58:05,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:58:05,941 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;@7f190d4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:58:05,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:58:05,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 59 states have (on average 1.4915254237288136) internal successors, (88), 60 states have internal predecessors, (88), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:05,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:05,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:05,955 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:05,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:05,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:05,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1579163663, now seen corresponding path program 1 times [2023-11-29 05:58:05,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:05,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932119856] [2023-11-29 05:58:05,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:05,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:06,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:06,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932119856] [2023-11-29 05:58:06,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 05:58:06,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938307689] [2023-11-29 05:58:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:06,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:06,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:06,186 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:06,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:58:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:06,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 05:58:06,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 05:58:06,444 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:06,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938307689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:06,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:06,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:58:06,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067208911] [2023-11-29 05:58:06,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:06,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:58:06,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:06,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:58:06,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:58:06,480 INFO L87 Difference]: Start difference. First operand has 67 states, 59 states have (on average 1.4915254237288136) internal successors, (88), 60 states have internal predecessors, (88), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:06,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:06,514 INFO L93 Difference]: Finished difference Result 131 states and 199 transitions. [2023-11-29 05:58:06,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:58:06,516 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2023-11-29 05:58:06,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:06,523 INFO L225 Difference]: With dead ends: 131 [2023-11-29 05:58:06,523 INFO L226 Difference]: Without dead ends: 65 [2023-11-29 05:58:06,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 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 05:58:06,529 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:06,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:06,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-29 05:58:06,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-29 05:58:06,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 58 states have internal predecessors, (83), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:06,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 93 transitions. [2023-11-29 05:58:06,564 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 93 transitions. Word has length 57 [2023-11-29 05:58:06,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:06,565 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 93 transitions. [2023-11-29 05:58:06,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:06,565 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2023-11-29 05:58:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:06,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:06,568 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:06,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:58:06,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 05:58:06,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:06,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:06,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1311656789, now seen corresponding path program 1 times [2023-11-29 05:58:06,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:06,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179358056] [2023-11-29 05:58:06,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:06,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:06,822 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:06,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1469662115] [2023-11-29 05:58:06,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:06,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:06,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:06,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:06,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:58:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:07,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:58:07,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:07,061 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:07,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:07,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:07,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179358056] [2023-11-29 05:58:07,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:07,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469662115] [2023-11-29 05:58:07,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469662115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:07,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:07,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:58:07,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839733188] [2023-11-29 05:58:07,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:07,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:07,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:07,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:07,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:07,065 INFO L87 Difference]: Start difference. First operand 65 states and 93 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:07,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:07,117 INFO L93 Difference]: Finished difference Result 153 states and 220 transitions. [2023-11-29 05:58:07,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:58:07,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-11-29 05:58:07,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:07,119 INFO L225 Difference]: With dead ends: 153 [2023-11-29 05:58:07,119 INFO L226 Difference]: Without dead ends: 89 [2023-11-29 05:58:07,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 05:58:07,121 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 48 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:07,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 267 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:07,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-29 05:58:07,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 67. [2023-11-29 05:58:07,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 60 states have internal predecessors, (85), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 95 transitions. [2023-11-29 05:58:07,132 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 95 transitions. Word has length 57 [2023-11-29 05:58:07,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:07,133 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 95 transitions. [2023-11-29 05:58:07,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:07,134 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 95 transitions. [2023-11-29 05:58:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:07,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:07,135 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:07,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:58:07,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 05:58:07,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:07,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:07,341 INFO L85 PathProgramCache]: Analyzing trace with hash 918629779, now seen corresponding path program 1 times [2023-11-29 05:58:07,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:07,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713360358] [2023-11-29 05:58:07,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:07,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:07,384 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:07,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1752627730] [2023-11-29 05:58:07,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:07,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:07,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:07,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:07,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:58:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:07,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:58:07,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:07,612 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:07,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:07,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:07,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713360358] [2023-11-29 05:58:07,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:07,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752627730] [2023-11-29 05:58:07,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752627730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:07,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:07,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:58:07,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613601796] [2023-11-29 05:58:07,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:07,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:07,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:07,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:07,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:07,616 INFO L87 Difference]: Start difference. First operand 67 states and 95 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:07,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:07,658 INFO L93 Difference]: Finished difference Result 153 states and 218 transitions. [2023-11-29 05:58:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:58:07,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-11-29 05:58:07,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:07,660 INFO L225 Difference]: With dead ends: 153 [2023-11-29 05:58:07,660 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 05:58:07,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 05:58:07,662 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 39 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:07,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 265 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:07,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 05:58:07,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 69. [2023-11-29 05:58:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.403225806451613) internal successors, (87), 62 states have internal predecessors, (87), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:07,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2023-11-29 05:58:07,672 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 97 transitions. Word has length 57 [2023-11-29 05:58:07,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:07,673 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 97 transitions. [2023-11-29 05:58:07,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:07,673 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions. [2023-11-29 05:58:07,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:07,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:07,701 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:07,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 05:58:07,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 05:58:07,902 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:07,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:07,903 INFO L85 PathProgramCache]: Analyzing trace with hash 109283153, now seen corresponding path program 1 times [2023-11-29 05:58:07,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:07,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794809870] [2023-11-29 05:58:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:07,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:07,939 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:07,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1219224879] [2023-11-29 05:58:07,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:07,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:07,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:07,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:07,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:58:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:08,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:58:08,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:08,138 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:08,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:08,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:08,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794809870] [2023-11-29 05:58:08,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:08,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219224879] [2023-11-29 05:58:08,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219224879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:08,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:08,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:58:08,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673361389] [2023-11-29 05:58:08,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:08,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:08,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:08,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:08,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:08,142 INFO L87 Difference]: Start difference. First operand 69 states and 97 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:08,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:08,176 INFO L93 Difference]: Finished difference Result 141 states and 198 transitions. [2023-11-29 05:58:08,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:58:08,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-11-29 05:58:08,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:08,178 INFO L225 Difference]: With dead ends: 141 [2023-11-29 05:58:08,178 INFO L226 Difference]: Without dead ends: 73 [2023-11-29 05:58:08,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 05:58:08,180 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 3 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:08,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 255 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:08,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-29 05:58:08,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2023-11-29 05:58:08,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.390625) internal successors, (89), 64 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:08,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2023-11-29 05:58:08,189 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 57 [2023-11-29 05:58:08,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:08,189 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2023-11-29 05:58:08,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:08,190 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2023-11-29 05:58:08,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:08,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:08,191 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:08,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:58:08,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:08,394 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:08,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:08,395 INFO L85 PathProgramCache]: Analyzing trace with hash 109342735, now seen corresponding path program 1 times [2023-11-29 05:58:08,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:08,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635923300] [2023-11-29 05:58:08,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:08,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:08,423 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:08,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1609231567] [2023-11-29 05:58:08,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:08,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:08,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:08,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:08,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:58:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:08,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 05:58:08,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:08,891 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-29 05:58:08,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 05:58:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:08,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:08,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:08,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635923300] [2023-11-29 05:58:08,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:08,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609231567] [2023-11-29 05:58:08,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609231567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:08,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:08,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:58:08,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188309416] [2023-11-29 05:58:08,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:08,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:58:08,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:08,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:58:08,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:58:08,923 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:09,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:09,124 INFO L93 Difference]: Finished difference Result 211 states and 295 transitions. [2023-11-29 05:58:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:58:09,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-11-29 05:58:09,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:09,127 INFO L225 Difference]: With dead ends: 211 [2023-11-29 05:58:09,127 INFO L226 Difference]: Without dead ends: 141 [2023-11-29 05:58:09,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:58:09,129 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 227 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:09,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 371 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:09,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-29 05:58:09,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2023-11-29 05:58:09,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 124 states have (on average 1.3870967741935485) internal successors, (172), 124 states have internal predecessors, (172), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 05:58:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 192 transitions. [2023-11-29 05:58:09,148 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 192 transitions. Word has length 57 [2023-11-29 05:58:09,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:09,149 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 192 transitions. [2023-11-29 05:58:09,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:09,149 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 192 transitions. [2023-11-29 05:58:09,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:09,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:09,151 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:09,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:58:09,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:09,357 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:09,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:09,357 INFO L85 PathProgramCache]: Analyzing trace with hash -708305715, now seen corresponding path program 1 times [2023-11-29 05:58:09,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:09,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316685700] [2023-11-29 05:58:09,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:09,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:09,396 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:09,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142770131] [2023-11-29 05:58:09,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:09,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:09,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:09,397 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:09,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:58:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:09,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 05:58:09,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:09,765 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-29 05:58:09,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 05:58:09,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 05:58:09,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 40 [2023-11-29 05:58:09,842 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:09,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:09,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:09,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316685700] [2023-11-29 05:58:09,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:09,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142770131] [2023-11-29 05:58:09,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142770131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:09,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:09,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 05:58:09,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829583870] [2023-11-29 05:58:09,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:09,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:58:09,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:09,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:58:09,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:58:09,845 INFO L87 Difference]: Start difference. First operand 137 states and 192 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:10,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:10,287 INFO L93 Difference]: Finished difference Result 324 states and 452 transitions. [2023-11-29 05:58:10,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:58:10,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-11-29 05:58:10,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:10,289 INFO L225 Difference]: With dead ends: 324 [2023-11-29 05:58:10,289 INFO L226 Difference]: Without dead ends: 188 [2023-11-29 05:58:10,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:58:10,291 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 437 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:10,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 562 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:58:10,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-29 05:58:10,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 141. [2023-11-29 05:58:10,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 128 states have (on average 1.375) internal successors, (176), 128 states have internal predecessors, (176), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 05:58:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 196 transitions. [2023-11-29 05:58:10,306 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 196 transitions. Word has length 57 [2023-11-29 05:58:10,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:10,306 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 196 transitions. [2023-11-29 05:58:10,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 196 transitions. [2023-11-29 05:58:10,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:58:10,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:10,308 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:10,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:58:10,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:10,514 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:10,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:10,514 INFO L85 PathProgramCache]: Analyzing trace with hash -313341371, now seen corresponding path program 1 times [2023-11-29 05:58:10,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:10,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232682679] [2023-11-29 05:58:10,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:10,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:10,539 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:10,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086552823] [2023-11-29 05:58:10,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:10,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:10,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:10,541 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:10,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:58:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:10,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:58:10,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:10,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 05:58:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:10,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:10,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:10,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232682679] [2023-11-29 05:58:10,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:10,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086552823] [2023-11-29 05:58:10,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086552823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:10,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:10,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:58:10,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395387517] [2023-11-29 05:58:10,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:10,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:58:10,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:10,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:58:10,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:58:10,772 INFO L87 Difference]: Start difference. First operand 141 states and 196 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:10,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:10,875 INFO L93 Difference]: Finished difference Result 423 states and 585 transitions. [2023-11-29 05:58:10,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:58:10,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 61 [2023-11-29 05:58:10,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:10,878 INFO L225 Difference]: With dead ends: 423 [2023-11-29 05:58:10,878 INFO L226 Difference]: Without dead ends: 283 [2023-11-29 05:58:10,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:58:10,880 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 116 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:10,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 314 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:10,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-29 05:58:10,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 145. [2023-11-29 05:58:10,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 132 states have (on average 1.3636363636363635) internal successors, (180), 132 states have internal predecessors, (180), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 05:58:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 200 transitions. [2023-11-29 05:58:10,896 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 200 transitions. Word has length 61 [2023-11-29 05:58:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:10,896 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 200 transitions. [2023-11-29 05:58:10,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 200 transitions. [2023-11-29 05:58:10,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:58:10,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:10,898 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:10,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:58:11,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:11,099 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:11,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:11,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1864035845, now seen corresponding path program 1 times [2023-11-29 05:58:11,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:11,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46052220] [2023-11-29 05:58:11,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:11,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:11,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:11,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675861183] [2023-11-29 05:58:11,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:11,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:11,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:11,132 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:11,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:58:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:11,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 05:58:11,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:11,770 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-29 05:58:11,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 05:58:11,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 05:58:12,049 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:12,050 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:12,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:58:12,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46052220] [2023-11-29 05:58:12,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:58:12,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675861183] [2023-11-29 05:58:12,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675861183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:12,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:12,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 05:58:12,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362120334] [2023-11-29 05:58:12,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:12,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 05:58:12,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:58:12,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 05:58:12,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:58:12,052 INFO L87 Difference]: Start difference. First operand 145 states and 200 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:12,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:12,621 INFO L93 Difference]: Finished difference Result 475 states and 650 transitions. [2023-11-29 05:58:12,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 05:58:12,621 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 61 [2023-11-29 05:58:12,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:12,624 INFO L225 Difference]: With dead ends: 475 [2023-11-29 05:58:12,624 INFO L226 Difference]: Without dead ends: 331 [2023-11-29 05:58:12,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:58:12,625 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 392 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:12,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 761 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:58:12,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-29 05:58:12,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 216. [2023-11-29 05:58:12,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 197 states have (on average 1.3604060913705585) internal successors, (268), 197 states have internal predecessors, (268), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 05:58:12,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 298 transitions. [2023-11-29 05:58:12,643 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 298 transitions. Word has length 61 [2023-11-29 05:58:12,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:12,643 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 298 transitions. [2023-11-29 05:58:12,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:12,644 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 298 transitions. [2023-11-29 05:58:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:58:12,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:12,645 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:12,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 05:58:12,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:12,850 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:12,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:12,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1228557815, now seen corresponding path program 1 times [2023-11-29 05:58:12,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:58:12,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821027006] [2023-11-29 05:58:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:12,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:58:12,867 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:58:12,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643611418] [2023-11-29 05:58:12,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:12,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:12,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:12,869 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:58:12,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:58:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:58:13,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:58:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:58:13,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:58:13,365 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:58:13,366 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 05:58:13,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:58:13,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:58:13,573 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:13,576 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:58:13,639 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated [2023-11-29 05:58:13,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem29 could not be translated [2023-11-29 05:58:13,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-11-29 05:58:13,647 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem32 could not be translated [2023-11-29 05:58:13,648 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-29 05:58:13,649 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-29 05:58:13,649 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-29 05:58:13,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated [2023-11-29 05:58:13,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-29 05:58:13,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated [2023-11-29 05:58:13,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-29 05:58:13,652 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated [2023-11-29 05:58:13,652 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-29 05:58:13,652 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-29 05:58:13,652 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated [2023-11-29 05:58:13,654 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 05:58:13,654 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated [2023-11-29 05:58:13,655 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated [2023-11-29 05:58:13,655 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 05:58:13,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-29 05:58:13,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-29 05:58:13,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated [2023-11-29 05:58:13,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-29 05:58:13,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-29 05:58:13,656 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 05:58:13,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-11-29 05:58:13,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated [2023-11-29 05:58:13,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-11-29 05:58:13,657 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 05:58:13,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-29 05:58:13,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-29 05:58:13,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated [2023-11-29 05:58:13,658 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-29 05:58:13,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated [2023-11-29 05:58:13,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-29 05:58:13,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-11-29 05:58:13,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-11-29 05:58:13,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-29 05:58:13,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-29 05:58:13,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 05:58:13,659 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-29 05:58:13,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated [2023-11-29 05:58:13,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-29 05:58:13,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-29 05:58:13,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated [2023-11-29 05:58:13,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-29 05:58:13,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-29 05:58:13,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-29 05:58:13,660 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-29 05:58:13,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 05:58:13,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-29 05:58:13,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-29 05:58:13,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-11-29 05:58:13,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated [2023-11-29 05:58:13,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-11-29 05:58:13,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated [2023-11-29 05:58:13,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-29 05:58:13,661 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-29 05:58:13,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated [2023-11-29 05:58:13,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-29 05:58:13,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated [2023-11-29 05:58:13,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-29 05:58:13,662 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-11-29 05:58:13,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-29 05:58:13,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-11-29 05:58:13,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-29 05:58:13,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-29 05:58:13,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 05:58:13,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-29 05:58:13,663 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated [2023-11-29 05:58:13,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-29 05:58:13,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated [2023-11-29 05:58:13,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated [2023-11-29 05:58:13,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-29 05:58:13,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated [2023-11-29 05:58:13,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-29 05:58:13,664 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-29 05:58:13,665 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-29 05:58:13,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-11-29 05:58:13,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated [2023-11-29 05:58:13,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 05:58:13,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated [2023-11-29 05:58:13,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-29 05:58:13,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated [2023-11-29 05:58:13,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated [2023-11-29 05:58:13,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-11-29 05:58:13,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-29 05:58:13,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-29 05:58:13,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-29 05:58:13,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated [2023-11-29 05:58:13,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-29 05:58:13,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-29 05:58:13,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short84 could not be translated [2023-11-29 05:58:13,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-11-29 05:58:13,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short84 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short87 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-29 05:58:13,668 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-29 05:58:13,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated [2023-11-29 05:58:13,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated [2023-11-29 05:58:13,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-29 05:58:13,669 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-29 05:58:13,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:58:13 BoogieIcfgContainer [2023-11-29 05:58:13,686 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:58:13,686 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:58:13,686 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:58:13,686 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:58:13,687 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:58:05" (3/4) ... [2023-11-29 05:58:13,688 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:58:13,689 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:58:13,689 INFO L158 Benchmark]: Toolchain (without parser) took 8800.97ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 126.6MB in the beginning and 176.1MB in the end (delta: -49.5MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2023-11-29 05:58:13,690 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:58:13,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.03ms. Allocated memory is still 159.4MB. Free memory was 126.6MB in the beginning and 113.3MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 05:58:13,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.59ms. Allocated memory is still 159.4MB. Free memory was 113.3MB in the beginning and 110.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:58:13,690 INFO L158 Benchmark]: Boogie Preprocessor took 79.01ms. Allocated memory is still 159.4MB. Free memory was 110.4MB in the beginning and 106.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:58:13,691 INFO L158 Benchmark]: RCFGBuilder took 589.01ms. Allocated memory is still 159.4MB. Free memory was 106.2MB in the beginning and 74.4MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-29 05:58:13,691 INFO L158 Benchmark]: TraceAbstraction took 7815.13ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 73.8MB in the beginning and 176.1MB in the end (delta: -102.3MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. [2023-11-29 05:58:13,691 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 237.0MB. Free memory is still 176.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:58:13,693 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.03ms. Allocated memory is still 159.4MB. Free memory was 126.6MB in the beginning and 113.3MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.59ms. Allocated memory is still 159.4MB. Free memory was 113.3MB in the beginning and 110.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.01ms. Allocated memory is still 159.4MB. Free memory was 110.4MB in the beginning and 106.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 589.01ms. Allocated memory is still 159.4MB. Free memory was 106.2MB in the beginning and 74.4MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7815.13ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 73.8MB in the beginning and 176.1MB in the end (delta: -102.3MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 237.0MB. Free memory is still 176.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short84 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short87 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 47, overapproximation of shiftLeft at line 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 10; [L22] unsigned char var_1_1 = 10; [L23] unsigned char* var_1_1_Pointer = &(var_1_1); [L24] unsigned char var_1_3 = 4; [L24] unsigned char var_1_3 = 4; [L25] unsigned char* var_1_3_Pointer = &(var_1_3); [L26] unsigned char var_1_7 = 0; [L26] unsigned char var_1_7 = 0; [L27] unsigned char* var_1_7_Pointer = &(var_1_7); [L28] signed short int var_1_8 = 100; [L28] signed short int var_1_8 = 100; [L29] signed short int* var_1_8_Pointer = &(var_1_8); [L30] unsigned char var_1_9 = 32; [L30] unsigned char var_1_9 = 32; [L31] unsigned char* var_1_9_Pointer = &(var_1_9); [L32] double var_1_10 = 9.2; [L32] double var_1_10 = 9.2; [L33] double* var_1_10_Pointer = &(var_1_10); [L34] double var_1_11 = 0.975; [L34] double var_1_11 = 0.975; [L35] double* var_1_11_Pointer = &(var_1_11); [L36] signed short int var_1_12 = 1; [L36] signed short int var_1_12 = 1; [L37] signed short int* var_1_12_Pointer = &(var_1_12); [L38] signed long int var_1_14 = -16; [L38] signed long int var_1_14 = -16; [L39] signed long int* var_1_14_Pointer = &(var_1_14); [L40] unsigned char last_1_var_1_1 = 10; [L41] double last_1_var_1_10 = 9.2; [L42] signed short int last_1_var_1_12 = 1; [L43] signed long int last_1_var_1_14 = -16; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] CALL updateLastVariables() [L84] EXPR \read(var_1_1) [L84] last_1_var_1_1 = var_1_1 [L85] EXPR \read(var_1_10) [L85] last_1_var_1_10 = var_1_10 [L86] EXPR \read(var_1_12) [L86] last_1_var_1_12 = var_1_12 [L87] EXPR \read(var_1_14) [L87] last_1_var_1_14 = var_1_14 [L97] RET updateLastVariables() [L98] CALL updateVariables() [L74] var_1_3 = __VERIFIER_nondet_uchar() [L75] EXPR \read(var_1_3) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L75] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L75] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L76] EXPR \read(var_1_3) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L76] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L76] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L77] var_1_7 = __VERIFIER_nondet_uchar() [L78] EXPR \read(var_1_7) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L78] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L78] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L79] EXPR \read(var_1_7) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L79] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L79] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L80] var_1_11 = __VERIFIER_nondet_double() [L81] EXPR \read(var_1_11) [L81] EXPR var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L81] EXPR var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F [L81] EXPR \read(var_1_11) [L81] EXPR var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L81] EXPR (var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L81] EXPR (var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L81] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L81] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L98] RET updateVariables() [L99] CALL step() [L47] unsigned char stepLocal_0 = last_1_var_1_10 > last_1_var_1_10; VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, stepLocal_0=0, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L48] COND FALSE !(((last_1_var_1_12 + last_1_var_1_1) < 10) || stepLocal_0) [L51] (*(var_1_12_Pointer)) = last_1_var_1_12 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L53] EXPR \read(*var_1_12_Pointer) [L53] (*(var_1_14_Pointer)) = (*(var_1_12_Pointer)) [L54] EXPR \read(*var_1_12_Pointer) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L54] EXPR 10 << (*(var_1_12_Pointer)) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, stepLocal_0=0, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L54] EXPR \read(*var_1_3_Pointer) [L54] EXPR \read(*var_1_14_Pointer) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L54] COND FALSE !((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) [L57] (*(var_1_9_Pointer)) = 64 [L58] EXPR \read(*var_1_11_Pointer) [L58] (*(var_1_10_Pointer)) = (*(var_1_11_Pointer)) [L59] EXPR \read(*var_1_12_Pointer) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L59] COND TRUE (*(var_1_12_Pointer)) <= 16 [L60] EXPR \read(*var_1_3_Pointer) [L60] (*(var_1_1_Pointer)) = (*(var_1_3_Pointer)) [L99] RET step() [L100] CALL, EXPR property() [L90] EXPR \read(*var_1_12_Pointer) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR ((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) [L90] EXPR \read(*var_1_1_Pointer) [L90] EXPR \read(*var_1_3_Pointer) [L90] EXPR ((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR (((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR (((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1) [L90] EXPR \read(*var_1_12_Pointer) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR 10 << (*(var_1_12_Pointer)) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR \read(*var_1_3_Pointer) [L90] EXPR \read(*var_1_14_Pointer) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR ((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1 [L90] EXPR \read(*var_1_8_Pointer) [L90] EXPR \read(*var_1_12_Pointer) [L90] EXPR \read(*var_1_14_Pointer) [L90] EXPR ((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1 VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR (((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR ((((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1)) && ((*(var_1_9_Pointer)) == ((unsigned char) 64)) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR ((((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1)) && ((*(var_1_9_Pointer)) == ((unsigned char) 64)) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR (((((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1)) && ((*(var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(var_1_10_Pointer)) == ((double) (*(var_1_11_Pointer)))) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR (((((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1)) && ((*(var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(var_1_10_Pointer)) == ((double) (*(var_1_11_Pointer)))) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR ((((((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1)) && ((*(var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(var_1_10_Pointer)) == ((double) (*(var_1_11_Pointer))))) && ((((last_1_var_1_12 + last_1_var_1_1) < 10) || (last_1_var_1_10 > last_1_var_1_10)) ? ((*(var_1_12_Pointer)) == ((signed short int) (((((((*(var_1_3_Pointer)) + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) > (last_1_var_1_1)) ? ((((*(var_1_3_Pointer)) + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) : (last_1_var_1_1))))) : ((*(var_1_12_Pointer)) == ((signed short int) last_1_var_1_12))) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR ((((((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1)) && ((*(var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(var_1_10_Pointer)) == ((double) (*(var_1_11_Pointer))))) && ((((last_1_var_1_12 + last_1_var_1_1) < 10) || (last_1_var_1_10 > last_1_var_1_10)) ? ((*(var_1_12_Pointer)) == ((signed short int) (((((((*(var_1_3_Pointer)) + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) > (last_1_var_1_1)) ? ((((*(var_1_3_Pointer)) + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) : (last_1_var_1_1))))) : ((*(var_1_12_Pointer)) == ((signed short int) last_1_var_1_12))) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR (((((((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1)) && ((*(var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(var_1_10_Pointer)) == ((double) (*(var_1_11_Pointer))))) && ((((last_1_var_1_12 + last_1_var_1_1) < 10) || (last_1_var_1_10 > last_1_var_1_10)) ? ((*(var_1_12_Pointer)) == ((signed short int) (((((((*(var_1_3_Pointer)) + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) > (last_1_var_1_1)) ? ((((*(var_1_3_Pointer)) + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) : (last_1_var_1_1))))) : ((*(var_1_12_Pointer)) == ((signed short int) last_1_var_1_12)))) && ((*(var_1_14_Pointer)) == ((signed long int) (*(var_1_12_Pointer)))) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90] EXPR (((((((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1)) && ((*(var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(var_1_10_Pointer)) == ((double) (*(var_1_11_Pointer))))) && ((((last_1_var_1_12 + last_1_var_1_1) < 10) || (last_1_var_1_10 > last_1_var_1_10)) ? ((*(var_1_12_Pointer)) == ((signed short int) (((((((*(var_1_3_Pointer)) + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) > (last_1_var_1_1)) ? ((((*(var_1_3_Pointer)) + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) : (last_1_var_1_1))))) : ((*(var_1_12_Pointer)) == ((signed short int) last_1_var_1_12)))) && ((*(var_1_14_Pointer)) == ((signed long int) (*(var_1_12_Pointer)))) VAL [isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L90-L91] return (((((((*(var_1_12_Pointer)) <= 16) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : (((((((*(var_1_10_Pointer))) > ((*(var_1_10_Pointer)))) ? ((*(var_1_10_Pointer))) : ((*(var_1_10_Pointer))))) < (*(var_1_10_Pointer))) ? ((*(var_1_7_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer))))) : ((*(var_1_1_Pointer)) == ((unsigned char) (*(var_1_3_Pointer)))))) && (((10 << (*(var_1_12_Pointer))) < ((*(var_1_3_Pointer)) * (*(var_1_14_Pointer)))) ? ((*(var_1_8_Pointer)) == ((signed short int) ((*(var_1_12_Pointer)) + (*(var_1_14_Pointer))))) : 1)) && ((*(var_1_9_Pointer)) == ((unsigned char) 64))) && ((*(var_1_10_Pointer)) == ((double) (*(var_1_11_Pointer))))) && ((((last_1_var_1_12 + last_1_var_1_1) < 10) || (last_1_var_1_10 > last_1_var_1_10)) ? ((*(var_1_12_Pointer)) == ((signed short int) (((((((*(var_1_3_Pointer)) + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) > (last_1_var_1_1)) ? ((((*(var_1_3_Pointer)) + last_1_var_1_12) - ((((last_1_var_1_14) > (last_1_var_1_12)) ? (last_1_var_1_14) : (last_1_var_1_12))))) : (last_1_var_1_1))))) : ((*(var_1_12_Pointer)) == ((signed short int) last_1_var_1_12)))) && ((*(var_1_14_Pointer)) == ((signed long int) (*(var_1_12_Pointer)))) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=46/5, last_1_var_1_12=1, last_1_var_1_14=-16, last_1_var_1_1=10, var_1_10={9:0}, var_1_10_Pointer={9:0}, var_1_11={10:0}, var_1_11_Pointer={10:0}, var_1_12={11:0}, var_1_12_Pointer={11:0}, var_1_14={12:0}, var_1_14_Pointer={12:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_3={5:0}, var_1_3_Pointer={5:0}, var_1_7={6:0}, var_1_7_Pointer={6:0}, var_1_8={7:0}, var_1_8_Pointer={7:0}, var_1_9={8:0}, var_1_9_Pointer={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 67 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1262 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1262 mSDsluCounter, 2884 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2217 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 755 IncrementalHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 667 mSDtfsCounter, 755 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 482 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=8, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 346 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 582 NumberOfCodeBlocks, 582 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 456 ConstructedInterpolants, 117 QuantifiedInterpolants, 2580 SizeOfPredicates, 48 NumberOfNonLiveVariables, 2791 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 320/320 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 05:58:13,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/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_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/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 aa8cc58df8fe09b61997a2de9d9c5e7a83d2492c15b287abd5439e2c29784fc7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:58:15,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:58:15,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 05:58:15,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:58:15,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:58:15,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:58:15,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:58:15,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:58:15,739 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:58:15,739 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:58:15,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:58:15,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:58:15,741 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:58:15,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:58:15,742 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:58:15,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:58:15,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:58:15,744 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:58:15,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:58:15,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:58:15,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:58:15,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:58:15,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:58:15,749 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:58:15,750 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 05:58:15,750 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 05:58:15,751 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:58:15,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:58:15,751 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:58:15,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:58:15,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:58:15,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:58:15,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:58:15,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:58:15,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:58:15,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:58:15,754 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:58:15,755 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 05:58:15,755 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 05:58:15,755 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:58:15,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:58:15,756 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:58:15,756 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:58:15,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:58:15,756 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 05:58:15,757 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_67b5afe1-dc4e-4312-b800-4a92e7819aca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa8cc58df8fe09b61997a2de9d9c5e7a83d2492c15b287abd5439e2c29784fc7 [2023-11-29 05:58:16,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:58:16,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:58:16,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:58:16,057 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:58:16,058 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:58:16,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.i [2023-11-29 05:58:18,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:58:19,032 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:58:19,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.i [2023-11-29 05:58:19,043 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/data/32cf692d7/8108d9abcb9f4071bf3c37f3ae157ebc/FLAGa507a9e02 [2023-11-29 05:58:19,056 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/data/32cf692d7/8108d9abcb9f4071bf3c37f3ae157ebc [2023-11-29 05:58:19,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:58:19,060 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:58:19,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:58:19,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:58:19,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:58:19,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44377ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19, skipping insertion in model container [2023-11-29 05:58:19,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,091 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:58:19,211 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_67b5afe1-dc4e-4312-b800-4a92e7819aca/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.i[915,928] [2023-11-29 05:58:19,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:58:19,289 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:58:19,303 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_67b5afe1-dc4e-4312-b800-4a92e7819aca/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-9.i[915,928] [2023-11-29 05:58:19,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:58:19,377 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:58:19,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19 WrapperNode [2023-11-29 05:58:19,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:58:19,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:58:19,379 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:58:19,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:58:19,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,435 INFO L138 Inliner]: procedures = 36, calls = 111, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 311 [2023-11-29 05:58:19,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:58:19,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:58:19,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:58:19,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:58:19,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,483 INFO L175 MemorySlicer]: Split 86 memory accesses to 10 slices as follows [2, 10, 18, 6, 3, 3, 14, 8, 14, 8]. 21 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 13 writes are split as follows [0, 4, 1, 1, 1, 1, 1, 1, 2, 1]. [2023-11-29 05:58:19,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:58:19,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:58:19,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:58:19,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:58:19,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (1/1) ... [2023-11-29 05:58:19,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:58:19,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:58:19,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:58:19,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:58:19,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:58:19,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-29 05:58:19,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-29 05:58:19,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-29 05:58:19,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-11-29 05:58:19,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2023-11-29 05:58:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2023-11-29 05:58:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2023-11-29 05:58:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2023-11-29 05:58:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2023-11-29 05:58:19,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#9 [2023-11-29 05:58:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-29 05:58:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-29 05:58:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-29 05:58:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-11-29 05:58:19,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2023-11-29 05:58:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2023-11-29 05:58:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2023-11-29 05:58:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2023-11-29 05:58:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2023-11-29 05:58:19,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#9 [2023-11-29 05:58:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 05:58:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 05:58:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 05:58:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 05:58:19,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-29 05:58:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2023-11-29 05:58:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2023-11-29 05:58:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2023-11-29 05:58:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2023-11-29 05:58:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2023-11-29 05:58:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-11-29 05:58:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-11-29 05:58:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#2 [2023-11-29 05:58:19,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#3 [2023-11-29 05:58:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#4 [2023-11-29 05:58:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#5 [2023-11-29 05:58:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#6 [2023-11-29 05:58:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#7 [2023-11-29 05:58:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#8 [2023-11-29 05:58:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#9 [2023-11-29 05:58:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 05:58:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 05:58:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 05:58:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 05:58:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 05:58:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-29 05:58:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-29 05:58:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-11-29 05:58:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-11-29 05:58:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2023-11-29 05:58:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2023-11-29 05:58:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2023-11-29 05:58:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2023-11-29 05:58:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2023-11-29 05:58:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2023-11-29 05:58:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2023-11-29 05:58:19,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2023-11-29 05:58:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2023-11-29 05:58:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2023-11-29 05:58:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2023-11-29 05:58:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2023-11-29 05:58:19,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2023-11-29 05:58:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2023-11-29 05:58:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2023-11-29 05:58:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2023-11-29 05:58:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2023-11-29 05:58:19,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2023-11-29 05:58:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2023-11-29 05:58:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2023-11-29 05:58:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#9 [2023-11-29 05:58:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 05:58:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 05:58:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 05:58:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 05:58:19,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-29 05:58:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-29 05:58:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-11-29 05:58:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-11-29 05:58:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-11-29 05:58:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2023-11-29 05:58:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-11-29 05:58:19,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-11-29 05:58:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2023-11-29 05:58:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2023-11-29 05:58:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2023-11-29 05:58:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2023-11-29 05:58:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2023-11-29 05:58:19,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2023-11-29 05:58:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#8 [2023-11-29 05:58:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#9 [2023-11-29 05:58:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 05:58:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 05:58:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:58:19,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:58:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-11-29 05:58:19,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-11-29 05:58:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2023-11-29 05:58:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2023-11-29 05:58:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2023-11-29 05:58:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2023-11-29 05:58:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2023-11-29 05:58:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2023-11-29 05:58:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2023-11-29 05:58:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2023-11-29 05:58:19,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-11-29 05:58:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-11-29 05:58:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2023-11-29 05:58:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2023-11-29 05:58:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2023-11-29 05:58:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2023-11-29 05:58:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2023-11-29 05:58:19,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2023-11-29 05:58:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#8 [2023-11-29 05:58:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#9 [2023-11-29 05:58:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 05:58:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 05:58:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 05:58:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 05:58:19,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-29 05:58:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-29 05:58:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-11-29 05:58:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-11-29 05:58:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-11-29 05:58:19,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2023-11-29 05:58:19,833 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:58:19,835 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:58:20,374 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:58:20,435 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:58:20,436 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:58:20,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:58:20 BoogieIcfgContainer [2023-11-29 05:58:20,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:58:20,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:58:20,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:58:20,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:58:20,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:58:19" (1/3) ... [2023-11-29 05:58:20,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6430bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:58:20, skipping insertion in model container [2023-11-29 05:58:20,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:58:19" (2/3) ... [2023-11-29 05:58:20,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6430bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:58:20, skipping insertion in model container [2023-11-29 05:58:20,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:58:20" (3/3) ... [2023-11-29 05:58:20,445 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-9.i [2023-11-29 05:58:20,464 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:58:20,464 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:58:20,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:58:20,515 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;@15c7654f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:58:20,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:58:20,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 55 states have (on average 1.490909090909091) internal successors, (82), 56 states have internal predecessors, (82), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:20,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 05:58:20,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:20,531 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:20,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:20,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:20,537 INFO L85 PathProgramCache]: Analyzing trace with hash -269528693, now seen corresponding path program 1 times [2023-11-29 05:58:20,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:20,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635181137] [2023-11-29 05:58:20,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:20,554 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:20,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:20,557 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:20,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 05:58:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:20,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 05:58:20,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 05:58:20,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:20,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:20,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635181137] [2023-11-29 05:58:20,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635181137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:20,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:20,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:58:20,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035999178] [2023-11-29 05:58:20,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:20,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 05:58:20,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:20,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 05:58:20,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 05:58:20,960 INFO L87 Difference]: Start difference. First operand has 63 states, 55 states have (on average 1.490909090909091) internal successors, (82), 56 states have internal predecessors, (82), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:21,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:21,003 INFO L93 Difference]: Finished difference Result 123 states and 187 transitions. [2023-11-29 05:58:21,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 05:58:21,005 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2023-11-29 05:58:21,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:21,011 INFO L225 Difference]: With dead ends: 123 [2023-11-29 05:58:21,011 INFO L226 Difference]: Without dead ends: 61 [2023-11-29 05:58:21,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 54 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 05:58:21,016 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:21,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:21,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-29 05:58:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-29 05:58:21,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 54 states have internal predecessors, (77), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 87 transitions. [2023-11-29 05:58:21,051 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 87 transitions. Word has length 55 [2023-11-29 05:58:21,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:21,051 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 87 transitions. [2023-11-29 05:58:21,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:21,052 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 87 transitions. [2023-11-29 05:58:21,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 05:58:21,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:21,054 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:21,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:58:21,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:21,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:21,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:21,256 INFO L85 PathProgramCache]: Analyzing trace with hash 838571601, now seen corresponding path program 1 times [2023-11-29 05:58:21,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:21,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829841825] [2023-11-29 05:58:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:21,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:21,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:21,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:21,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 05:58:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:21,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:58:21,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:21,594 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:21,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:21,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:21,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829841825] [2023-11-29 05:58:21,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829841825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:21,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:21,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:58:21,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098257976] [2023-11-29 05:58:21,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:21,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:21,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:21,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:21,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:21,599 INFO L87 Difference]: Start difference. First operand 61 states and 87 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:21,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:21,670 INFO L93 Difference]: Finished difference Result 145 states and 208 transitions. [2023-11-29 05:58:21,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:58:21,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2023-11-29 05:58:21,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:21,673 INFO L225 Difference]: With dead ends: 145 [2023-11-29 05:58:21,673 INFO L226 Difference]: Without dead ends: 85 [2023-11-29 05:58:21,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 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 05:58:21,676 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 48 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:21,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 249 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:58:21,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-29 05:58:21,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 63. [2023-11-29 05:58:21,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 56 states have internal predecessors, (79), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:21,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 89 transitions. [2023-11-29 05:58:21,686 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 89 transitions. Word has length 55 [2023-11-29 05:58:21,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:21,688 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 89 transitions. [2023-11-29 05:58:21,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:21,688 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 89 transitions. [2023-11-29 05:58:21,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 05:58:21,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:21,691 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:21,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 05:58:21,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:21,894 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:21,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:21,895 INFO L85 PathProgramCache]: Analyzing trace with hash 445544591, now seen corresponding path program 1 times [2023-11-29 05:58:21,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:21,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142430195] [2023-11-29 05:58:21,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:21,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:21,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:21,898 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:21,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 05:58:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:22,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 05:58:22,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:22,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:22,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:22,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142430195] [2023-11-29 05:58:22,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1142430195] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:22,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:22,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:58:22,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69215515] [2023-11-29 05:58:22,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:22,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:58:22,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:22,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:58:22,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:58:22,250 INFO L87 Difference]: Start difference. First operand 63 states and 89 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:22,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:22,341 INFO L93 Difference]: Finished difference Result 156 states and 222 transitions. [2023-11-29 05:58:22,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 05:58:22,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2023-11-29 05:58:22,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:22,343 INFO L225 Difference]: With dead ends: 156 [2023-11-29 05:58:22,344 INFO L226 Difference]: Without dead ends: 94 [2023-11-29 05:58:22,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:58:22,346 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 69 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:22,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 342 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:22,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-29 05:58:22,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 65. [2023-11-29 05:58:22,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:22,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2023-11-29 05:58:22,356 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 55 [2023-11-29 05:58:22,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:22,357 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2023-11-29 05:58:22,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:22,357 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2023-11-29 05:58:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 05:58:22,359 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:22,359 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:22,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-29 05:58:22,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:22,565 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:22,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:22,566 INFO L85 PathProgramCache]: Analyzing trace with hash -363802035, now seen corresponding path program 1 times [2023-11-29 05:58:22,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:22,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328833114] [2023-11-29 05:58:22,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:22,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:22,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:22,567 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:22,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 05:58:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:22,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:58:22,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:22,835 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:22,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:22,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328833114] [2023-11-29 05:58:22,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328833114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:22,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:22,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:58:22,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187151795] [2023-11-29 05:58:22,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:22,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:58:22,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:22,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:58:22,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:58:22,839 INFO L87 Difference]: Start difference. First operand 65 states and 91 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:23,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:23,031 INFO L93 Difference]: Finished difference Result 150 states and 209 transitions. [2023-11-29 05:58:23,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 05:58:23,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2023-11-29 05:58:23,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:23,033 INFO L225 Difference]: With dead ends: 150 [2023-11-29 05:58:23,033 INFO L226 Difference]: Without dead ends: 86 [2023-11-29 05:58:23,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:58:23,035 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 34 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:23,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 446 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:23,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-29 05:58:23,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 69. [2023-11-29 05:58:23,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 62 states have internal predecessors, (85), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2023-11-29 05:58:23,052 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 55 [2023-11-29 05:58:23,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:23,053 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2023-11-29 05:58:23,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2023-11-29 05:58:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 05:58:23,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:23,055 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:23,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 05:58:23,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:23,258 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:23,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:23,259 INFO L85 PathProgramCache]: Analyzing trace with hash -363742453, now seen corresponding path program 1 times [2023-11-29 05:58:23,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:23,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773030131] [2023-11-29 05:58:23,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:23,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:23,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:23,260 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:23,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 05:58:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:23,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:58:23,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:23,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 05:58:23,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2023-11-29 05:58:23,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2023-11-29 05:58:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:23,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:23,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:23,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773030131] [2023-11-29 05:58:23,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773030131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:23,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:23,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:58:23,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667613983] [2023-11-29 05:58:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:23,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:58:23,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:23,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:58:23,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:58:23,670 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:23,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:23,974 INFO L93 Difference]: Finished difference Result 161 states and 221 transitions. [2023-11-29 05:58:23,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:58:23,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 55 [2023-11-29 05:58:23,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:23,976 INFO L225 Difference]: With dead ends: 161 [2023-11-29 05:58:23,976 INFO L226 Difference]: Without dead ends: 93 [2023-11-29 05:58:23,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:58:23,978 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 202 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:23,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 218 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:58:23,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-29 05:58:23,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 71. [2023-11-29 05:58:23,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.359375) internal successors, (87), 64 states have internal predecessors, (87), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 05:58:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 97 transitions. [2023-11-29 05:58:23,988 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 97 transitions. Word has length 55 [2023-11-29 05:58:23,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:23,988 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 97 transitions. [2023-11-29 05:58:23,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:23,989 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 97 transitions. [2023-11-29 05:58:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:23,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:23,991 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:23,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 05:58:24,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:24,196 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:24,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:24,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2121878124, now seen corresponding path program 1 times [2023-11-29 05:58:24,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:24,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074168145] [2023-11-29 05:58:24,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:24,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:24,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:24,199 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:24,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-29 05:58:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:24,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 05:58:24,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:25,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-11-29 05:58:26,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:58:26,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 188 treesize of output 118 [2023-11-29 05:58:26,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:58:26,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 255 treesize of output 135 [2023-11-29 05:58:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:58:26,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:26,438 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:26,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074168145] [2023-11-29 05:58:26,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074168145] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:26,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [191667761] [2023-11-29 05:58:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:26,438 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 05:58:26,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 05:58:26,441 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 05:58:26,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-29 05:58:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:27,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 05:58:27,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:28,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2023-11-29 05:58:29,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-11-29 05:58:29,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:58:29,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 118 [2023-11-29 05:58:29,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 135 [2023-11-29 05:58:29,553 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:58:29,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:29,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [191667761] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:29,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:58:29,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-11-29 05:58:29,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928267302] [2023-11-29 05:58:29,715 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:29,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 05:58:29,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 05:58:29,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2023-11-29 05:58:29,716 INFO L87 Difference]: Start difference. First operand 71 states and 97 transitions. Second operand has 16 states, 16 states have (on average 4.3125) internal successors, (69), 15 states have internal predecessors, (69), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 05:58:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:31,421 INFO L93 Difference]: Finished difference Result 217 states and 294 transitions. [2023-11-29 05:58:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 05:58:31,423 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 15 states have internal predecessors, (69), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 57 [2023-11-29 05:58:31,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:31,425 INFO L225 Difference]: With dead ends: 217 [2023-11-29 05:58:31,425 INFO L226 Difference]: Without dead ends: 147 [2023-11-29 05:58:31,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2023-11-29 05:58:31,426 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 362 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:31,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 742 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 05:58:31,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-29 05:58:31,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 139. [2023-11-29 05:58:31,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 125 states have (on average 1.344) internal successors, (168), 126 states have internal predecessors, (168), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 05:58:31,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 188 transitions. [2023-11-29 05:58:31,447 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 188 transitions. Word has length 57 [2023-11-29 05:58:31,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:31,447 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 188 transitions. [2023-11-29 05:58:31,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.3125) internal successors, (69), 15 states have internal predecessors, (69), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 05:58:31,448 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 188 transitions. [2023-11-29 05:58:31,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:31,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:31,450 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:31,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-29 05:58:31,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-11-29 05:58:31,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 05:58:31,855 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:31,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:31,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1363742546, now seen corresponding path program 1 times [2023-11-29 05:58:31,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:31,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175772197] [2023-11-29 05:58:31,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:31,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:31,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:31,857 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:31,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-29 05:58:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:32,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:58:32,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:32,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-11-29 05:58:32,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2023-11-29 05:58:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:32,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:32,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:32,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175772197] [2023-11-29 05:58:32,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175772197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:32,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:32,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:58:32,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377103042] [2023-11-29 05:58:32,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:32,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:58:32,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:32,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:58:32,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:58:32,140 INFO L87 Difference]: Start difference. First operand 139 states and 188 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:32,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:32,240 INFO L93 Difference]: Finished difference Result 321 states and 433 transitions. [2023-11-29 05:58:32,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:58:32,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-11-29 05:58:32,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:32,243 INFO L225 Difference]: With dead ends: 321 [2023-11-29 05:58:32,243 INFO L226 Difference]: Without dead ends: 183 [2023-11-29 05:58:32,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:58:32,244 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 93 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:32,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 364 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:32,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-29 05:58:32,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 139. [2023-11-29 05:58:32,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 125 states have (on average 1.328) internal successors, (166), 126 states have internal predecessors, (166), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 05:58:32,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 186 transitions. [2023-11-29 05:58:32,263 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 186 transitions. Word has length 57 [2023-11-29 05:58:32,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:32,264 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 186 transitions. [2023-11-29 05:58:32,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 186 transitions. [2023-11-29 05:58:32,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:32,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:32,265 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:32,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-29 05:58:32,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:32,466 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:32,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:32,466 INFO L85 PathProgramCache]: Analyzing trace with hash 970715536, now seen corresponding path program 1 times [2023-11-29 05:58:32,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:32,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184822163] [2023-11-29 05:58:32,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:32,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:32,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:32,468 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:32,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 05:58:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:32,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 05:58:32,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:32,902 INFO L349 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2023-11-29 05:58:32,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2023-11-29 05:58:32,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 05:58:32,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2023-11-29 05:58:33,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 75 [2023-11-29 05:58:33,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 54 [2023-11-29 05:58:33,176 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-29 05:58:33,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 54 [2023-11-29 05:58:33,222 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:33,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:33,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:33,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184822163] [2023-11-29 05:58:33,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184822163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:33,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:33,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 05:58:33,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583885375] [2023-11-29 05:58:33,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:33,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 05:58:33,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:33,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 05:58:33,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:58:33,224 INFO L87 Difference]: Start difference. First operand 139 states and 186 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:34,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:34,692 INFO L93 Difference]: Finished difference Result 653 states and 871 transitions. [2023-11-29 05:58:34,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:58:34,692 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-11-29 05:58:34,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:34,695 INFO L225 Difference]: With dead ends: 653 [2023-11-29 05:58:34,695 INFO L226 Difference]: Without dead ends: 515 [2023-11-29 05:58:34,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2023-11-29 05:58:34,696 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 609 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:34,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 822 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 05:58:34,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-11-29 05:58:34,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 415. [2023-11-29 05:58:34,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 375 states have (on average 1.312) internal successors, (492), 378 states have internal predecessors, (492), 30 states have call successors, (30), 9 states have call predecessors, (30), 9 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 05:58:34,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 552 transitions. [2023-11-29 05:58:34,747 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 552 transitions. Word has length 57 [2023-11-29 05:58:34,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:34,747 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 552 transitions. [2023-11-29 05:58:34,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:34,748 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 552 transitions. [2023-11-29 05:58:34,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:34,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:34,749 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:34,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 05:58:34,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:34,950 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:34,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:34,950 INFO L85 PathProgramCache]: Analyzing trace with hash 153067086, now seen corresponding path program 1 times [2023-11-29 05:58:34,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:34,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136797077] [2023-11-29 05:58:34,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:34,951 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:34,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:34,952 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:34,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-29 05:58:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:35,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 05:58:35,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:35,386 INFO L349 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2023-11-29 05:58:35,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2023-11-29 05:58:35,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 05:58:35,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2023-11-29 05:58:35,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 05:58:35,748 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-29 05:58:35,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 32 [2023-11-29 05:58:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:35,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:35,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:35,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136797077] [2023-11-29 05:58:35,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136797077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:35,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:35,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:58:35,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116296883] [2023-11-29 05:58:35,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:35,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:58:35,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:35,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:58:35,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:58:35,795 INFO L87 Difference]: Start difference. First operand 415 states and 552 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:37,259 INFO L93 Difference]: Finished difference Result 928 states and 1229 transitions. [2023-11-29 05:58:37,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:58:37,260 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2023-11-29 05:58:37,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:37,263 INFO L225 Difference]: With dead ends: 928 [2023-11-29 05:58:37,263 INFO L226 Difference]: Without dead ends: 514 [2023-11-29 05:58:37,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:58:37,264 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 277 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:37,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 499 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 05:58:37,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-11-29 05:58:37,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 315. [2023-11-29 05:58:37,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 288 states have (on average 1.3333333333333333) internal successors, (384), 290 states have internal predecessors, (384), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:58:37,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 424 transitions. [2023-11-29 05:58:37,299 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 424 transitions. Word has length 57 [2023-11-29 05:58:37,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:37,299 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 424 transitions. [2023-11-29 05:58:37,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:37,299 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 424 transitions. [2023-11-29 05:58:37,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-29 05:58:37,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:37,300 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:37,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-29 05:58:37,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:37,501 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:37,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:37,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1420278250, now seen corresponding path program 1 times [2023-11-29 05:58:37,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:37,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824201639] [2023-11-29 05:58:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:37,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:37,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:37,503 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:37,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 05:58:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:37,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:58:37,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:58:37,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:37,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:37,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824201639] [2023-11-29 05:58:37,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824201639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:37,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:37,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:58:37,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335588692] [2023-11-29 05:58:37,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:37,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:58:37,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:37,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:58:37,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:58:37,690 INFO L87 Difference]: Start difference. First operand 315 states and 424 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:37,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:37,792 INFO L93 Difference]: Finished difference Result 637 states and 859 transitions. [2023-11-29 05:58:37,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 05:58:37,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2023-11-29 05:58:37,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:37,795 INFO L225 Difference]: With dead ends: 637 [2023-11-29 05:58:37,795 INFO L226 Difference]: Without dead ends: 323 [2023-11-29 05:58:37,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 05:58:37,797 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 7 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:37,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 247 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:37,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2023-11-29 05:58:37,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 315. [2023-11-29 05:58:37,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 288 states have (on average 1.3263888888888888) internal successors, (382), 290 states have internal predecessors, (382), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:58:37,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 422 transitions. [2023-11-29 05:58:37,837 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 422 transitions. Word has length 57 [2023-11-29 05:58:37,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:37,837 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 422 transitions. [2023-11-29 05:58:37,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:37,837 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 422 transitions. [2023-11-29 05:58:37,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 05:58:37,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:37,838 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:37,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 05:58:38,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:38,039 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:38,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:38,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1836731428, now seen corresponding path program 1 times [2023-11-29 05:58:38,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:38,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305677420] [2023-11-29 05:58:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:38,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:38,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:38,041 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:38,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-29 05:58:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:38,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 05:58:38,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:38,501 INFO L349 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2023-11-29 05:58:38,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2023-11-29 05:58:38,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 05:58:38,804 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:38,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:38,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:38,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305677420] [2023-11-29 05:58:38,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305677420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:38,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:38,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:58:38,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285435518] [2023-11-29 05:58:38,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:38,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:58:38,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:38,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:58:38,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:58:38,806 INFO L87 Difference]: Start difference. First operand 315 states and 422 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:39,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:39,470 INFO L93 Difference]: Finished difference Result 365 states and 485 transitions. [2023-11-29 05:58:39,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:58:39,471 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2023-11-29 05:58:39,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:39,473 INFO L225 Difference]: With dead ends: 365 [2023-11-29 05:58:39,473 INFO L226 Difference]: Without dead ends: 363 [2023-11-29 05:58:39,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:58:39,474 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 259 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:39,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 495 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 05:58:39,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-29 05:58:39,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 319. [2023-11-29 05:58:39,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 292 states have (on average 1.321917808219178) internal successors, (386), 294 states have internal predecessors, (386), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:58:39,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 426 transitions. [2023-11-29 05:58:39,520 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 426 transitions. Word has length 59 [2023-11-29 05:58:39,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:39,520 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 426 transitions. [2023-11-29 05:58:39,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:39,520 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 426 transitions. [2023-11-29 05:58:39,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 05:58:39,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:39,522 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:39,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-29 05:58:39,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:39,728 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:39,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:39,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1836791010, now seen corresponding path program 1 times [2023-11-29 05:58:39,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:39,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32635917] [2023-11-29 05:58:39,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:39,729 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:39,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:39,730 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:39,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 05:58:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:39,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 05:58:39,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:40,202 INFO L349 Elim1Store]: treesize reduction 26, result has 21.2 percent of original size [2023-11-29 05:58:40,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 24 [2023-11-29 05:58:40,362 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-29 05:58:40,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 37 [2023-11-29 05:58:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:40,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:40,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:40,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32635917] [2023-11-29 05:58:40,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32635917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:40,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:40,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:58:40,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912104828] [2023-11-29 05:58:40,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:40,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:58:40,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:40,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:58:40,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:58:40,394 INFO L87 Difference]: Start difference. First operand 319 states and 426 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:40,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:40,843 INFO L93 Difference]: Finished difference Result 651 states and 868 transitions. [2023-11-29 05:58:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:58:40,844 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2023-11-29 05:58:40,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:40,846 INFO L225 Difference]: With dead ends: 651 [2023-11-29 05:58:40,846 INFO L226 Difference]: Without dead ends: 333 [2023-11-29 05:58:40,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:58:40,847 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 204 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:40,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 394 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:58:40,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-11-29 05:58:40,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 325. [2023-11-29 05:58:40,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 298 states have (on average 1.3154362416107384) internal successors, (392), 300 states have internal predecessors, (392), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:58:40,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 432 transitions. [2023-11-29 05:58:40,878 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 432 transitions. Word has length 59 [2023-11-29 05:58:40,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:40,879 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 432 transitions. [2023-11-29 05:58:40,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:40,879 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 432 transitions. [2023-11-29 05:58:40,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 05:58:40,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:40,880 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:40,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 05:58:41,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:41,080 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:41,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:41,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1646055485, now seen corresponding path program 1 times [2023-11-29 05:58:41,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:41,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244947643] [2023-11-29 05:58:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:41,081 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:41,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:41,082 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:41,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-29 05:58:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:41,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:58:41,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:41,484 INFO L349 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2023-11-29 05:58:41,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2023-11-29 05:58:41,525 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-29 05:58:41,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 05:58:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:41,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:41,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:41,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244947643] [2023-11-29 05:58:41,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244947643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:41,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:41,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:58:41,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239447699] [2023-11-29 05:58:41,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:41,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:58:41,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:41,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:58:41,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:58:41,539 INFO L87 Difference]: Start difference. First operand 325 states and 432 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:41,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:41,884 INFO L93 Difference]: Finished difference Result 609 states and 808 transitions. [2023-11-29 05:58:41,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:58:41,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2023-11-29 05:58:41,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:41,886 INFO L225 Difference]: With dead ends: 609 [2023-11-29 05:58:41,886 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 05:58:41,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:58:41,887 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 189 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:41,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 355 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:58:41,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 05:58:41,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 279. [2023-11-29 05:58:41,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 252 states have (on average 1.2936507936507937) internal successors, (326), 254 states have internal predecessors, (326), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 05:58:41,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 366 transitions. [2023-11-29 05:58:41,923 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 366 transitions. Word has length 59 [2023-11-29 05:58:41,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:41,923 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 366 transitions. [2023-11-29 05:58:41,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:41,924 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 366 transitions. [2023-11-29 05:58:41,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 05:58:41,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:41,925 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:41,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-29 05:58:42,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:42,126 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:42,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:42,126 INFO L85 PathProgramCache]: Analyzing trace with hash 687867349, now seen corresponding path program 1 times [2023-11-29 05:58:42,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:42,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928111951] [2023-11-29 05:58:42,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:42,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:42,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:42,128 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:42,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 05:58:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:42,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:58:42,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:42,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-29 05:58:42,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-29 05:58:42,551 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 05:58:42,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:42,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:42,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928111951] [2023-11-29 05:58:42,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928111951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:42,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:42,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:58:42,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733472170] [2023-11-29 05:58:42,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:42,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:58:42,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:42,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:58:42,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:58:42,554 INFO L87 Difference]: Start difference. First operand 279 states and 366 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:42,872 INFO L93 Difference]: Finished difference Result 671 states and 877 transitions. [2023-11-29 05:58:42,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:58:42,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2023-11-29 05:58:42,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:42,875 INFO L225 Difference]: With dead ends: 671 [2023-11-29 05:58:42,875 INFO L226 Difference]: Without dead ends: 393 [2023-11-29 05:58:42,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:58:42,877 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 69 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:42,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 277 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:58:42,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-11-29 05:58:42,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 373. [2023-11-29 05:58:42,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 338 states have (on average 1.2899408284023668) internal successors, (436), 340 states have internal predecessors, (436), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:58:42,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 488 transitions. [2023-11-29 05:58:42,936 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 488 transitions. Word has length 59 [2023-11-29 05:58:42,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:42,936 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 488 transitions. [2023-11-29 05:58:42,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:58:42,936 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 488 transitions. [2023-11-29 05:58:42,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 05:58:42,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:42,937 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:42,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 05:58:43,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:43,137 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:43,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:43,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1377437800, now seen corresponding path program 1 times [2023-11-29 05:58:43,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:43,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1410563842] [2023-11-29 05:58:43,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:43,138 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:43,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:43,139 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:43,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-29 05:58:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:43,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 05:58:43,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:43,370 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 05:58:43,370 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:58:43,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:43,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1410563842] [2023-11-29 05:58:43,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1410563842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:58:43,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:58:43,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:58:43,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969528084] [2023-11-29 05:58:43,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:58:43,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:58:43,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:43,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:58:43,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:58:43,371 INFO L87 Difference]: Start difference. First operand 373 states and 488 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:43,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:43,517 INFO L93 Difference]: Finished difference Result 701 states and 917 transitions. [2023-11-29 05:58:43,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 05:58:43,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2023-11-29 05:58:43,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:43,520 INFO L225 Difference]: With dead ends: 701 [2023-11-29 05:58:43,521 INFO L226 Difference]: Without dead ends: 383 [2023-11-29 05:58:43,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:58:43,522 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 7 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:43,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 358 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:58:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-11-29 05:58:43,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 373. [2023-11-29 05:58:43,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 338 states have (on average 1.2810650887573964) internal successors, (433), 340 states have internal predecessors, (433), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 05:58:43,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 485 transitions. [2023-11-29 05:58:43,576 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 485 transitions. Word has length 59 [2023-11-29 05:58:43,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:43,577 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 485 transitions. [2023-11-29 05:58:43,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:58:43,577 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 485 transitions. [2023-11-29 05:58:43,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 05:58:43,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:43,578 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:43,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-11-29 05:58:43,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:43,778 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:58:43,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:58:43,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1400070054, now seen corresponding path program 1 times [2023-11-29 05:58:43,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:58:43,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722145805] [2023-11-29 05:58:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:43,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:58:43,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:58:43,780 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:58:43,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 05:58:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:44,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 05:58:44,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:44,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2023-11-29 05:58:45,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:58:45,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 188 treesize of output 118 [2023-11-29 05:58:45,315 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:58:45,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 253 treesize of output 133 [2023-11-29 05:58:45,394 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:58:45,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:45,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:58:45,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722145805] [2023-11-29 05:58:45,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722145805] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:45,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [979455198] [2023-11-29 05:58:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:58:45,699 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 05:58:45,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 05:58:45,700 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 05:58:45,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-29 05:58:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:58:46,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 05:58:46,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:58:47,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-11-29 05:58:55,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-11-29 05:58:56,080 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:58:56,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 118 [2023-11-29 05:58:56,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 141 [2023-11-29 05:58:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 05:58:56,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:58:56,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [979455198] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:58:56,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:58:56,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2023-11-29 05:58:56,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866677802] [2023-11-29 05:58:56,266 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:58:56,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 05:58:56,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:58:56,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 05:58:56,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=531, Unknown=1, NotChecked=0, Total=650 [2023-11-29 05:58:56,267 INFO L87 Difference]: Start difference. First operand 373 states and 485 transitions. Second operand has 23 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 20 states have internal predecessors, (73), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 05:58:59,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:58:59,754 INFO L93 Difference]: Finished difference Result 672 states and 865 transitions. [2023-11-29 05:58:59,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 05:58:59,755 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 20 states have internal predecessors, (73), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 59 [2023-11-29 05:58:59,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:58:59,757 INFO L225 Difference]: With dead ends: 672 [2023-11-29 05:58:59,757 INFO L226 Difference]: Without dead ends: 394 [2023-11-29 05:58:59,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 138 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=396, Invalid=1409, Unknown=1, NotChecked=0, Total=1806 [2023-11-29 05:58:59,759 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 296 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:58:59,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 931 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 05:58:59,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-11-29 05:58:59,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 211. [2023-11-29 05:58:59,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 189 states have (on average 1.2592592592592593) internal successors, (238), 189 states have internal predecessors, (238), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 05:58:59,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 268 transitions. [2023-11-29 05:58:59,799 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 268 transitions. Word has length 59 [2023-11-29 05:58:59,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:58:59,800 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 268 transitions. [2023-11-29 05:58:59,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.4761904761904763) internal successors, (73), 20 states have internal predecessors, (73), 4 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 05:58:59,800 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 268 transitions. [2023-11-29 05:58:59,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 05:58:59,801 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:58:59,802 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:58:59,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-11-29 05:59:00,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-11-29 05:59:00,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 05:59:00,202 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:59:00,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:00,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1550459167, now seen corresponding path program 1 times [2023-11-29 05:59:00,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:59:00,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345304828] [2023-11-29 05:59:00,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:00,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:59:00,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:59:00,204 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:59:00,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-29 05:59:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:00,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 05:59:00,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:01,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 05:59:01,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 54 [2023-11-29 05:59:01,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2023-11-29 05:59:01,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 05:59:02,443 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 115 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 05:59:02,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:59:02,785 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:59:02,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 38 [2023-11-29 05:59:03,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2023-11-29 05:59:04,821 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:59:04,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345304828] [2023-11-29 05:59:04,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345304828] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:59:04,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1226308190] [2023-11-29 05:59:04,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:04,822 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 05:59:04,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 05:59:04,823 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 05:59:04,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-29 05:59:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:06,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-29 05:59:06,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:09,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 05:59:09,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 05:59:10,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 05:59:10,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 29 [2023-11-29 05:59:13,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 05:59:17,400 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 23 proven. 140 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 05:59:17,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:59:18,430 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2023-11-29 05:59:18,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1226308190] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 05:59:18,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:59:18,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 13] total 29 [2023-11-29 05:59:18,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460863463] [2023-11-29 05:59:18,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:59:18,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 05:59:18,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:59:18,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 05:59:18,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1260, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 05:59:18,432 INFO L87 Difference]: Start difference. First operand 211 states and 268 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:59:19,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:19,177 INFO L93 Difference]: Finished difference Result 435 states and 548 transitions. [2023-11-29 05:59:19,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 05:59:19,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 117 [2023-11-29 05:59:19,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:59:19,180 INFO L225 Difference]: With dead ends: 435 [2023-11-29 05:59:19,180 INFO L226 Difference]: Without dead ends: 356 [2023-11-29 05:59:19,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 396 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=183, Invalid=1623, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 05:59:19,182 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 217 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 05:59:19,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 549 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 05:59:19,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-11-29 05:59:19,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 230. [2023-11-29 05:59:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 208 states have (on average 1.2836538461538463) internal successors, (267), 208 states have internal predecessors, (267), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 05:59:19,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 297 transitions. [2023-11-29 05:59:19,240 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 297 transitions. Word has length 117 [2023-11-29 05:59:19,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:59:19,240 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 297 transitions. [2023-11-29 05:59:19,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 05:59:19,240 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 297 transitions. [2023-11-29 05:59:19,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 05:59:19,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:19,242 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:59:19,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-11-29 05:59:19,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-11-29 05:59:19,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 05:59:19,643 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:59:19,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:19,643 INFO L85 PathProgramCache]: Analyzing trace with hash 732810717, now seen corresponding path program 1 times [2023-11-29 05:59:19,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:59:19,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459646649] [2023-11-29 05:59:19,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:19,644 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:59:19,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:59:19,645 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:59:19,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-29 05:59:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:19,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 05:59:19,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:20,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 05:59:20,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 54 [2023-11-29 05:59:21,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2023-11-29 05:59:21,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 05:59:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 115 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 05:59:21,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:59:22,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 05:59:22,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 38 [2023-11-29 05:59:22,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2023-11-29 05:59:24,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:59:24,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459646649] [2023-11-29 05:59:24,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459646649] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:59:24,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1917202278] [2023-11-29 05:59:24,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:24,450 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 05:59:24,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 05:59:24,451 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 05:59:24,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-29 05:59:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:25,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 05:59:25,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:27,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 05:59:28,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2023-11-29 05:59:28,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 05:59:28,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2023-11-29 05:59:28,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 05:59:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 20 proven. 115 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 05:59:29,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:59:29,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2023-11-29 05:59:29,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2023-11-29 05:59:30,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1917202278] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:59:30,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:59:30,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 15 [2023-11-29 05:59:30,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865412021] [2023-11-29 05:59:30,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:59:30,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 05:59:30,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:59:30,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 05:59:30,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2023-11-29 05:59:30,639 INFO L87 Difference]: Start difference. First operand 230 states and 297 transitions. Second operand has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 05:59:35,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:59:35,733 INFO L93 Difference]: Finished difference Result 516 states and 656 transitions. [2023-11-29 05:59:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:59:35,734 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 117 [2023-11-29 05:59:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:59:35,736 INFO L225 Difference]: With dead ends: 516 [2023-11-29 05:59:35,736 INFO L226 Difference]: Without dead ends: 346 [2023-11-29 05:59:35,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 372 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 05:59:35,738 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 474 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:59:35,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 879 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 05:59:35,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-11-29 05:59:35,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 259. [2023-11-29 05:59:35,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 237 states have (on average 1.2658227848101267) internal successors, (300), 237 states have internal predecessors, (300), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 05:59:35,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 330 transitions. [2023-11-29 05:59:35,804 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 330 transitions. Word has length 117 [2023-11-29 05:59:35,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:59:35,804 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 330 transitions. [2023-11-29 05:59:35,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.9375) internal successors, (111), 15 states have internal predecessors, (111), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 05:59:35,804 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 330 transitions. [2023-11-29 05:59:35,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 05:59:35,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:59:35,806 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:59:35,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-11-29 05:59:36,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-11-29 05:59:36,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:59:36,207 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:59:36,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:59:36,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1974232989, now seen corresponding path program 1 times [2023-11-29 05:59:36,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:59:36,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242594362] [2023-11-29 05:59:36,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:59:36,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 05:59:36,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:59:36,208 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 05:59:36,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-11-29 05:59:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:59:36,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 05:59:36,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:59:37,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 05:59:37,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 05:59:39,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 55 [2023-11-29 05:59:39,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-11-29 05:59:39,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2023-11-29 05:59:39,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 05:59:39,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2023-11-29 05:59:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 12 proven. 123 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 05:59:39,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:00:30,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:00:30,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242594362] [2023-11-29 06:00:30,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242594362] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:00:30,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [761871015] [2023-11-29 06:00:30,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:00:30,529 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 06:00:30,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 06:00:30,530 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 06:00:30,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-29 06:00:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:00:31,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 06:00:31,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:00:36,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:00:37,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:00:51,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 50 [2023-11-29 06:00:58,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2023-11-29 06:01:20,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2023-11-29 06:01:20,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:01:20,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2023-11-29 06:01:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 12 proven. 123 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:01:22,776 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:01:23,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 54 [2023-11-29 06:01:36,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [761871015] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:01:36,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:01:36,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2023-11-29 06:01:36,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872573806] [2023-11-29 06:01:36,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:01:36,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 06:01:36,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:01:36,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 06:01:36,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=863, Unknown=16, NotChecked=0, Total=992 [2023-11-29 06:01:36,056 INFO L87 Difference]: Start difference. First operand 259 states and 330 transitions. Second operand has 23 states, 23 states have (on average 5.826086956521739) internal successors, (134), 22 states have internal predecessors, (134), 4 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-29 06:02:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:22,847 INFO L93 Difference]: Finished difference Result 567 states and 725 transitions. [2023-11-29 06:02:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:02:22,849 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.826086956521739) internal successors, (134), 22 states have internal predecessors, (134), 4 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 117 [2023-11-29 06:02:22,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:22,851 INFO L225 Difference]: With dead ends: 567 [2023-11-29 06:02:22,851 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 06:02:22,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 252 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 140.6s TimeCoverageRelationStatistics Valid=231, Invalid=1469, Unknown=22, NotChecked=0, Total=1722 [2023-11-29 06:02:22,852 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 463 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:22,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1700 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-11-29 06:02:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 06:02:22,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 280. [2023-11-29 06:02:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 258 states have (on average 1.2790697674418605) internal successors, (330), 258 states have internal predecessors, (330), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:02:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 360 transitions. [2023-11-29 06:02:22,928 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 360 transitions. Word has length 117 [2023-11-29 06:02:22,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:22,928 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 360 transitions. [2023-11-29 06:02:22,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.826086956521739) internal successors, (134), 22 states have internal predecessors, (134), 4 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-29 06:02:22,929 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 360 transitions. [2023-11-29 06:02:22,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 06:02:22,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:22,930 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:22,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-11-29 06:02:23,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-11-29 06:02:23,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:23,331 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:02:23,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:23,331 INFO L85 PathProgramCache]: Analyzing trace with hash 168794655, now seen corresponding path program 1 times [2023-11-29 06:02:23,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:02:23,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725874807] [2023-11-29 06:02:23,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:23,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:23,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:02:23,332 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:02:23,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-11-29 06:02:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:23,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 06:02:23,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:27,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:02:27,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:02:32,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 90 [2023-11-29 06:02:33,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 100 [2023-11-29 06:02:34,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:02:34,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 80 [2023-11-29 06:02:34,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 77 [2023-11-29 06:02:35,565 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 12 proven. 123 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:02:35,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:37,159 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-29 06:02:37,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:02:37,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [725874807] [2023-11-29 06:02:37,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [725874807] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:37,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:37,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2023-11-29 06:02:37,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363539695] [2023-11-29 06:02:37,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:02:37,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:02:37,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:02:37,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:02:37,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:02:37,160 INFO L87 Difference]: Start difference. First operand 280 states and 360 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:02:39,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:39,483 INFO L93 Difference]: Finished difference Result 457 states and 582 transitions. [2023-11-29 06:02:39,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:02:39,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 117 [2023-11-29 06:02:39,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:39,490 INFO L225 Difference]: With dead ends: 457 [2023-11-29 06:02:39,490 INFO L226 Difference]: Without dead ends: 359 [2023-11-29 06:02:39,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 218 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:02:39,491 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 67 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:39,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 371 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:02:39,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-11-29 06:02:39,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 262. [2023-11-29 06:02:39,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 240 states have (on average 1.2666666666666666) internal successors, (304), 240 states have internal predecessors, (304), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:02:39,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 334 transitions. [2023-11-29 06:02:39,544 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 334 transitions. Word has length 117 [2023-11-29 06:02:39,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:39,544 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 334 transitions. [2023-11-29 06:02:39,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:02:39,545 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 334 transitions. [2023-11-29 06:02:39,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 06:02:39,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:39,546 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1] [2023-11-29 06:02:39,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-11-29 06:02:39,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:39,747 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:02:39,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:39,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1825456985, now seen corresponding path program 1 times [2023-11-29 06:02:39,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:02:39,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653924318] [2023-11-29 06:02:39,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:39,747 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:39,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:02:39,748 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:02:39,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-11-29 06:02:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:40,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:02:40,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 06:02:40,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:02:40,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:02:40,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653924318] [2023-11-29 06:02:40,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653924318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:02:40,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:02:40,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:02:40,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116921633] [2023-11-29 06:02:40,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:02:40,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:02:40,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:02:40,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:02:40,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:02:40,389 INFO L87 Difference]: Start difference. First operand 262 states and 334 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:02:40,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:40,549 INFO L93 Difference]: Finished difference Result 574 states and 734 transitions. [2023-11-29 06:02:40,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:02:40,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 119 [2023-11-29 06:02:40,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:40,551 INFO L225 Difference]: With dead ends: 574 [2023-11-29 06:02:40,551 INFO L226 Difference]: Without dead ends: 313 [2023-11-29 06:02:40,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 06:02:40,552 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 34 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:40,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 169 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:02:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-29 06:02:40,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 256. [2023-11-29 06:02:40,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 234 states have (on average 1.2820512820512822) internal successors, (300), 234 states have internal predecessors, (300), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:02:40,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 330 transitions. [2023-11-29 06:02:40,600 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 330 transitions. Word has length 119 [2023-11-29 06:02:40,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:40,601 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 330 transitions. [2023-11-29 06:02:40,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:02:40,601 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 330 transitions. [2023-11-29 06:02:40,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 06:02:40,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:40,602 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1] [2023-11-29 06:02:40,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2023-11-29 06:02:40,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:40,802 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:02:40,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:40,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1649356235, now seen corresponding path program 1 times [2023-11-29 06:02:40,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:02:40,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851689615] [2023-11-29 06:02:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:40,803 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:40,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:02:40,804 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:02:40,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-11-29 06:02:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:41,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:02:41,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:41,484 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-29 06:02:41,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:02:41,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:02:41,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851689615] [2023-11-29 06:02:41,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851689615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:02:41,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:02:41,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:02:41,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405734423] [2023-11-29 06:02:41,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:02:41,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:02:41,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:02:41,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:02:41,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:02:41,486 INFO L87 Difference]: Start difference. First operand 256 states and 330 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:02:41,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:41,773 INFO L93 Difference]: Finished difference Result 416 states and 541 transitions. [2023-11-29 06:02:41,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:02:41,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 119 [2023-11-29 06:02:41,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:41,777 INFO L225 Difference]: With dead ends: 416 [2023-11-29 06:02:41,777 INFO L226 Difference]: Without dead ends: 273 [2023-11-29 06:02:41,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:02:41,778 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 56 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:41,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 255 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:02:41,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-29 06:02:41,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 256. [2023-11-29 06:02:41,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 234 states have (on average 1.2777777777777777) internal successors, (299), 234 states have internal predecessors, (299), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:02:41,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 329 transitions. [2023-11-29 06:02:41,832 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 329 transitions. Word has length 119 [2023-11-29 06:02:41,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:41,832 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 329 transitions. [2023-11-29 06:02:41,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:02:41,832 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 329 transitions. [2023-11-29 06:02:41,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 06:02:41,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:41,833 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:41,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-11-29 06:02:42,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:42,034 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:02:42,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:42,034 INFO L85 PathProgramCache]: Analyzing trace with hash 442687826, now seen corresponding path program 1 times [2023-11-29 06:02:42,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:02:42,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490735266] [2023-11-29 06:02:42,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:42,035 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:42,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:02:42,035 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:02:42,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-11-29 06:02:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:42,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:02:42,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:45,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:02:45,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:02:46,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:02:47,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 06:02:48,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2023-11-29 06:02:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 12 proven. 121 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:02:48,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:02:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-11-29 06:02:48,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:02:48,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490735266] [2023-11-29 06:02:48,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490735266] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:02:48,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:02:48,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2023-11-29 06:02:48,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520771475] [2023-11-29 06:02:48,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:02:48,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:02:48,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:02:48,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:02:48,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:02:48,998 INFO L87 Difference]: Start difference. First operand 256 states and 329 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:02:49,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:49,491 INFO L93 Difference]: Finished difference Result 594 states and 748 transitions. [2023-11-29 06:02:49,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:02:49,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 119 [2023-11-29 06:02:49,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:49,494 INFO L225 Difference]: With dead ends: 594 [2023-11-29 06:02:49,494 INFO L226 Difference]: Without dead ends: 451 [2023-11-29 06:02:49,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:02:49,495 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 143 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:49,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 216 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:02:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2023-11-29 06:02:49,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 264. [2023-11-29 06:02:49,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 242 states have (on average 1.2685950413223142) internal successors, (307), 242 states have internal predecessors, (307), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:02:49,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 337 transitions. [2023-11-29 06:02:49,554 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 337 transitions. Word has length 119 [2023-11-29 06:02:49,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:49,555 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 337 transitions. [2023-11-29 06:02:49,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:02:49,555 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 337 transitions. [2023-11-29 06:02:49,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:02:49,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:49,556 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1] [2023-11-29 06:02:49,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-11-29 06:02:49,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:49,756 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:02:49,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:49,757 INFO L85 PathProgramCache]: Analyzing trace with hash -909213904, now seen corresponding path program 1 times [2023-11-29 06:02:49,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:02:49,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174931189] [2023-11-29 06:02:49,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:49,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:49,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:02:49,758 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:02:49,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-11-29 06:02:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:50,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:02:50,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:50,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:02:50,527 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-29 06:02:50,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:02:50,527 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:02:50,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174931189] [2023-11-29 06:02:50,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174931189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:02:50,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:02:50,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:02:50,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831498887] [2023-11-29 06:02:50,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:02:50,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:02:50,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:02:50,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:02:50,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:02:50,529 INFO L87 Difference]: Start difference. First operand 264 states and 337 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:02:51,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:02:51,075 INFO L93 Difference]: Finished difference Result 296 states and 374 transitions. [2023-11-29 06:02:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:02:51,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 121 [2023-11-29 06:02:51,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:02:51,078 INFO L225 Difference]: With dead ends: 296 [2023-11-29 06:02:51,078 INFO L226 Difference]: Without dead ends: 294 [2023-11-29 06:02:51,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:02:51,078 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 66 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:02:51,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 308 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:02:51,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-29 06:02:51,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 266. [2023-11-29 06:02:51,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 244 states have (on average 1.2663934426229508) internal successors, (309), 244 states have internal predecessors, (309), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:02:51,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 339 transitions. [2023-11-29 06:02:51,145 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 339 transitions. Word has length 121 [2023-11-29 06:02:51,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:02:51,145 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 339 transitions. [2023-11-29 06:02:51,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:02:51,146 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 339 transitions. [2023-11-29 06:02:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:02:51,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:02:51,146 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:02:51,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2023-11-29 06:02:51,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:51,347 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:02:51,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:02:51,347 INFO L85 PathProgramCache]: Analyzing trace with hash -909154322, now seen corresponding path program 1 times [2023-11-29 06:02:51,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:02:51,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047139109] [2023-11-29 06:02:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:02:51,348 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:02:51,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:02:51,349 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:02:51,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-11-29 06:02:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:02:51,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 06:02:51,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:02:55,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:02:55,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:03:00,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2023-11-29 06:03:01,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 06:03:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 19 proven. 118 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:03:02,392 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:10,073 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 06:03:10,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:10,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047139109] [2023-11-29 06:03:10,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047139109] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:03:10,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:03:10,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [11] total 23 [2023-11-29 06:03:10,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355507745] [2023-11-29 06:03:10,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:10,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:03:10,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:10,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:03:10,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:03:10,075 INFO L87 Difference]: Start difference. First operand 266 states and 339 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:03:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:03:21,837 INFO L93 Difference]: Finished difference Result 557 states and 707 transitions. [2023-11-29 06:03:21,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:03:21,842 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 121 [2023-11-29 06:03:21,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:03:21,844 INFO L225 Difference]: With dead ends: 557 [2023-11-29 06:03:21,844 INFO L226 Difference]: Without dead ends: 404 [2023-11-29 06:03:21,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=207, Invalid=915, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 06:03:21,845 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 190 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:03:21,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 882 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-29 06:03:21,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-11-29 06:03:21,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 294. [2023-11-29 06:03:21,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 272 states have (on average 1.2536764705882353) internal successors, (341), 272 states have internal predecessors, (341), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:03:21,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 371 transitions. [2023-11-29 06:03:21,908 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 371 transitions. Word has length 121 [2023-11-29 06:03:21,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:03:21,908 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 371 transitions. [2023-11-29 06:03:21,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 13 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:03:21,908 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 371 transitions. [2023-11-29 06:03:21,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:03:21,909 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:03:21,909 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:03:21,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Ended with exit code 0 [2023-11-29 06:03:22,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:22,110 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:03:22,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:03:22,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1718500948, now seen corresponding path program 1 times [2023-11-29 06:03:22,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:03:22,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212940501] [2023-11-29 06:03:22,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:03:22,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:03:22,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:03:22,111 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:03:22,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-11-29 06:03:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:03:22,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 06:03:22,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:03:26,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:03:26,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:03:31,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2023-11-29 06:03:32,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 06:03:32,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2023-11-29 06:03:33,360 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 19 proven. 118 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:03:33,361 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:03:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 06:03:44,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:03:44,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212940501] [2023-11-29 06:03:44,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212940501] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:03:44,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:03:44,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2023-11-29 06:03:44,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130969559] [2023-11-29 06:03:44,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:03:44,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:03:44,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:03:44,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:03:44,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:03:44,321 INFO L87 Difference]: Start difference. First operand 294 states and 371 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:03:48,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:04:11,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 06:04:11,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:11,408 INFO L93 Difference]: Finished difference Result 589 states and 744 transitions. [2023-11-29 06:04:11,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:04:11,413 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 121 [2023-11-29 06:04:11,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:11,414 INFO L225 Difference]: With dead ends: 589 [2023-11-29 06:04:11,414 INFO L226 Difference]: Without dead ends: 413 [2023-11-29 06:04:11,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=168, Invalid=588, Unknown=0, NotChecked=0, Total=756 [2023-11-29 06:04:11,415 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 212 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:11,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 710 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 17.1s Time] [2023-11-29 06:04:11,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-11-29 06:04:11,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 294. [2023-11-29 06:04:11,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 272 states have (on average 1.25) internal successors, (340), 272 states have internal predecessors, (340), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:04:11,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 370 transitions. [2023-11-29 06:04:11,466 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 370 transitions. Word has length 121 [2023-11-29 06:04:11,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:11,466 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 370 transitions. [2023-11-29 06:04:11,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:04:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 370 transitions. [2023-11-29 06:04:11,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:04:11,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:11,467 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1] [2023-11-29 06:04:11,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-11-29 06:04:11,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:04:11,668 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:11,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:11,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1043167828, now seen corresponding path program 1 times [2023-11-29 06:04:11,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:04:11,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417610080] [2023-11-29 06:04:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:11,669 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:04:11,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:04:11,670 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:04:11,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-11-29 06:04:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:12,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 06:04:12,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:04:16,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:04:16,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:04:18,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:04:19,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2023-11-29 06:04:21,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2023-11-29 06:04:21,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 90 [2023-11-29 06:04:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 2 proven. 135 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:04:22,260 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:04:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 06:04:25,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:04:25,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417610080] [2023-11-29 06:04:25,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417610080] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:04:25,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:04:25,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 22 [2023-11-29 06:04:25,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327846537] [2023-11-29 06:04:25,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:25,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:04:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:04:25,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:04:25,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:04:25,638 INFO L87 Difference]: Start difference. First operand 294 states and 370 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:04:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:30,564 INFO L93 Difference]: Finished difference Result 566 states and 717 transitions. [2023-11-29 06:04:30,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:04:30,568 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 121 [2023-11-29 06:04:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:30,570 INFO L225 Difference]: With dead ends: 566 [2023-11-29 06:04:30,570 INFO L226 Difference]: Without dead ends: 390 [2023-11-29 06:04:30,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2023-11-29 06:04:30,571 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 136 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:30,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 726 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 06:04:30,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-29 06:04:30,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 310. [2023-11-29 06:04:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 288 states have (on average 1.2430555555555556) internal successors, (358), 288 states have internal predecessors, (358), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:04:30,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 388 transitions. [2023-11-29 06:04:30,621 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 388 transitions. Word has length 121 [2023-11-29 06:04:30,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:30,621 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 388 transitions. [2023-11-29 06:04:30,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:04:30,622 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 388 transitions. [2023-11-29 06:04:30,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:04:30,622 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:30,622 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1] [2023-11-29 06:04:30,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Ended with exit code 0 [2023-11-29 06:04:30,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:04:30,823 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:30,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:30,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1852514454, now seen corresponding path program 1 times [2023-11-29 06:04:30,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:04:30,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832785987] [2023-11-29 06:04:30,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:30,824 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:04:30,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:04:30,824 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:04:30,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-11-29 06:04:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:31,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 06:04:31,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:04:35,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:04:35,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:04:37,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:04:39,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2023-11-29 06:04:39,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-11-29 06:04:40,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2023-11-29 06:04:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 5 proven. 132 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:04:41,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:04:44,265 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 06:04:44,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:04:44,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832785987] [2023-11-29 06:04:44,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832785987] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:04:44,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:04:44,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 19 [2023-11-29 06:04:44,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258441652] [2023-11-29 06:04:44,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:44,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:04:44,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:04:44,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:04:44,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:04:44,266 INFO L87 Difference]: Start difference. First operand 310 states and 388 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:04:48,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:04:48,303 INFO L93 Difference]: Finished difference Result 581 states and 734 transitions. [2023-11-29 06:04:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:04:48,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 121 [2023-11-29 06:04:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:04:48,308 INFO L225 Difference]: With dead ends: 581 [2023-11-29 06:04:48,308 INFO L226 Difference]: Without dead ends: 389 [2023-11-29 06:04:48,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:04:48,309 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 95 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:04:48,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 512 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 06:04:48,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-11-29 06:04:48,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 296. [2023-11-29 06:04:48,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 274 states have (on average 1.2518248175182483) internal successors, (343), 274 states have internal predecessors, (343), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:04:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 373 transitions. [2023-11-29 06:04:48,361 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 373 transitions. Word has length 121 [2023-11-29 06:04:48,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:04:48,362 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 373 transitions. [2023-11-29 06:04:48,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:04:48,362 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 373 transitions. [2023-11-29 06:04:48,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:04:48,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:04:48,363 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:04:48,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-11-29 06:04:48,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:04:48,563 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:04:48,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:04:48,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1692545682, now seen corresponding path program 1 times [2023-11-29 06:04:48,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:04:48,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324013917] [2023-11-29 06:04:48,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:04:48,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:04:48,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:04:48,565 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:04:48,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-11-29 06:04:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:04:49,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 06:04:49,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:04:53,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:04:53,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:04:54,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:04:54,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:04:56,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-11-29 06:04:56,887 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 5 proven. 132 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:04:56,887 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:04:58,765 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 06:04:58,765 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:04:58,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324013917] [2023-11-29 06:04:58,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324013917] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:04:58,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:04:58,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-29 06:04:58,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119088321] [2023-11-29 06:04:58,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:04:58,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:04:58,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:04:58,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:04:58,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:04:58,767 INFO L87 Difference]: Start difference. First operand 296 states and 373 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:00,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:05:00,321 INFO L93 Difference]: Finished difference Result 550 states and 700 transitions. [2023-11-29 06:05:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:05:00,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 121 [2023-11-29 06:05:00,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:05:00,325 INFO L225 Difference]: With dead ends: 550 [2023-11-29 06:05:00,325 INFO L226 Difference]: Without dead ends: 367 [2023-11-29 06:05:00,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:05:00,326 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 90 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:05:00,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 289 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:05:00,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-11-29 06:05:00,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 339. [2023-11-29 06:05:00,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 317 states have (on average 1.2712933753943219) internal successors, (403), 317 states have internal predecessors, (403), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:05:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 433 transitions. [2023-11-29 06:05:00,378 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 433 transitions. Word has length 121 [2023-11-29 06:05:00,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:05:00,379 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 433 transitions. [2023-11-29 06:05:00,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:00,379 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 433 transitions. [2023-11-29 06:05:00,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:05:00,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:05:00,380 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:05:00,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-11-29 06:05:00,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:00,580 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:05:00,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:05:00,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1793074988, now seen corresponding path program 1 times [2023-11-29 06:05:00,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:05:00,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560603827] [2023-11-29 06:05:00,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:00,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:00,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:05:00,582 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:05:00,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-11-29 06:05:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:05:01,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 06:05:01,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:05:02,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:05:04,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-11-29 06:05:05,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 06:05:06,877 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 2 proven. 134 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 06:05:06,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:05:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 06:05:09,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:05:09,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560603827] [2023-11-29 06:05:09,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560603827] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:05:09,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:05:09,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 23 [2023-11-29 06:05:09,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37352194] [2023-11-29 06:05:09,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:05:09,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:05:09,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:05:09,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:05:09,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:05:09,269 INFO L87 Difference]: Start difference. First operand 339 states and 433 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:13,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:05:13,397 INFO L93 Difference]: Finished difference Result 614 states and 780 transitions. [2023-11-29 06:05:13,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:05:13,398 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 121 [2023-11-29 06:05:13,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:05:13,400 INFO L225 Difference]: With dead ends: 614 [2023-11-29 06:05:13,400 INFO L226 Difference]: Without dead ends: 388 [2023-11-29 06:05:13,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=136, Invalid=734, Unknown=0, NotChecked=0, Total=870 [2023-11-29 06:05:13,402 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 140 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:05:13,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1007 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 06:05:13,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-11-29 06:05:13,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 348. [2023-11-29 06:05:13,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 326 states have internal predecessors, (412), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:05:13,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 442 transitions. [2023-11-29 06:05:13,453 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 442 transitions. Word has length 121 [2023-11-29 06:05:13,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:05:13,454 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 442 transitions. [2023-11-29 06:05:13,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 11 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:13,454 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 442 transitions. [2023-11-29 06:05:13,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:05:13,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:05:13,455 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1] [2023-11-29 06:05:13,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-11-29 06:05:13,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:13,655 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:05:13,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:05:13,656 INFO L85 PathProgramCache]: Analyzing trace with hash 70713580, now seen corresponding path program 1 times [2023-11-29 06:05:13,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:05:13,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649535278] [2023-11-29 06:05:13,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:13,656 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:13,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:05:13,657 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:05:13,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-11-29 06:05:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:05:14,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 06:05:14,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:05:15,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:05:17,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 23 [2023-11-29 06:05:18,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-29 06:05:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 2 proven. 134 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 06:05:18,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:05:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 06:05:19,967 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:05:19,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649535278] [2023-11-29 06:05:19,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649535278] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:05:19,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:05:19,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 19 [2023-11-29 06:05:19,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476936338] [2023-11-29 06:05:19,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:05:19,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:05:19,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:05:19,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:05:19,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:05:19,969 INFO L87 Difference]: Start difference. First operand 348 states and 442 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:21,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:05:21,815 INFO L93 Difference]: Finished difference Result 607 states and 772 transitions. [2023-11-29 06:05:21,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:05:21,817 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 121 [2023-11-29 06:05:21,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:05:21,818 INFO L225 Difference]: With dead ends: 607 [2023-11-29 06:05:21,819 INFO L226 Difference]: Without dead ends: 372 [2023-11-29 06:05:21,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:05:21,819 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 58 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:05:21,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 865 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:05:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-11-29 06:05:21,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 339. [2023-11-29 06:05:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 317 states have (on average 1.2712933753943219) internal successors, (403), 317 states have internal predecessors, (403), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:05:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 433 transitions. [2023-11-29 06:05:21,866 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 433 transitions. Word has length 121 [2023-11-29 06:05:21,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:05:21,866 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 433 transitions. [2023-11-29 06:05:21,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:21,867 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 433 transitions. [2023-11-29 06:05:21,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 06:05:21,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:05:21,867 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:05:21,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Ended with exit code 0 [2023-11-29 06:05:22,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:22,068 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:05:22,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:05:22,068 INFO L85 PathProgramCache]: Analyzing trace with hash -126094979, now seen corresponding path program 1 times [2023-11-29 06:05:22,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:05:22,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204633606] [2023-11-29 06:05:22,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:22,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:22,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:05:22,070 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:05:22,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-11-29 06:05:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:05:22,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:05:22,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:05:23,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:05:23,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2023-11-29 06:05:23,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2023-11-29 06:05:24,170 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 10 proven. 122 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 06:05:24,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:05:24,510 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-29 06:05:24,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:05:24,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204633606] [2023-11-29 06:05:24,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204633606] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:05:24,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:05:24,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2023-11-29 06:05:24,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802048245] [2023-11-29 06:05:24,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:05:24,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:05:24,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:05:24,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:05:24,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:05:24,512 INFO L87 Difference]: Start difference. First operand 339 states and 433 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:25,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:05:25,585 INFO L93 Difference]: Finished difference Result 668 states and 848 transitions. [2023-11-29 06:05:25,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:05:25,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 122 [2023-11-29 06:05:25,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:05:25,589 INFO L225 Difference]: With dead ends: 668 [2023-11-29 06:05:25,589 INFO L226 Difference]: Without dead ends: 442 [2023-11-29 06:05:25,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:05:25,590 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 105 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:05:25,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 345 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:05:25,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-11-29 06:05:25,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 345. [2023-11-29 06:05:25,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 323 states have (on average 1.2662538699690402) internal successors, (409), 323 states have internal predecessors, (409), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:05:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 439 transitions. [2023-11-29 06:05:25,668 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 439 transitions. Word has length 122 [2023-11-29 06:05:25,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:05:25,668 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 439 transitions. [2023-11-29 06:05:25,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:25,668 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 439 transitions. [2023-11-29 06:05:25,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 06:05:25,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:05:25,670 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:05:25,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-11-29 06:05:25,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:25,870 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:05:25,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:05:25,870 INFO L85 PathProgramCache]: Analyzing trace with hash -460235433, now seen corresponding path program 1 times [2023-11-29 06:05:25,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:05:25,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839427015] [2023-11-29 06:05:25,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:25,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:25,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:05:25,872 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:05:25,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-11-29 06:05:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:05:26,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:05:26,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:05:29,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:05:29,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:05:30,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:05:31,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 06:05:32,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2023-11-29 06:05:32,555 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 16 proven. 121 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:05:32,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:05:33,090 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-11-29 06:05:33,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:05:33,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839427015] [2023-11-29 06:05:33,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839427015] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:05:33,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:05:33,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2023-11-29 06:05:33,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811560852] [2023-11-29 06:05:33,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:05:33,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:05:33,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:05:33,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:05:33,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:05:33,092 INFO L87 Difference]: Start difference. First operand 345 states and 439 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:33,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:05:33,741 INFO L93 Difference]: Finished difference Result 766 states and 964 transitions. [2023-11-29 06:05:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:05:33,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 124 [2023-11-29 06:05:33,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:05:33,744 INFO L225 Difference]: With dead ends: 766 [2023-11-29 06:05:33,744 INFO L226 Difference]: Without dead ends: 410 [2023-11-29 06:05:33,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 234 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:05:33,745 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 170 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:05:33,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 263 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:05:33,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-29 06:05:33,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 337. [2023-11-29 06:05:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 315 states have (on average 1.2285714285714286) internal successors, (387), 315 states have internal predecessors, (387), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:05:33,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 417 transitions. [2023-11-29 06:05:33,819 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 417 transitions. Word has length 124 [2023-11-29 06:05:33,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:05:33,820 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 417 transitions. [2023-11-29 06:05:33,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:33,820 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 417 transitions. [2023-11-29 06:05:33,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 06:05:33,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:05:33,821 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:05:33,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Ended with exit code 0 [2023-11-29 06:05:34,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:34,022 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:05:34,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:05:34,022 INFO L85 PathProgramCache]: Analyzing trace with hash 2007125144, now seen corresponding path program 1 times [2023-11-29 06:05:34,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:05:34,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478181275] [2023-11-29 06:05:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:34,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:34,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:05:34,024 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:05:34,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-11-29 06:05:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:05:34,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:05:34,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:05:35,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:05:35,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 42 [2023-11-29 06:05:35,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 30 [2023-11-29 06:05:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 10 proven. 122 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-11-29 06:05:36,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:05:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-29 06:05:36,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:05:36,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478181275] [2023-11-29 06:05:36,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478181275] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:05:36,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:05:36,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 12 [2023-11-29 06:05:36,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915158547] [2023-11-29 06:05:36,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:05:36,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:05:36,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:05:36,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:05:36,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:05:36,766 INFO L87 Difference]: Start difference. First operand 337 states and 417 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:38,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:05:38,368 INFO L93 Difference]: Finished difference Result 642 states and 794 transitions. [2023-11-29 06:05:38,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:05:38,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 124 [2023-11-29 06:05:38,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:05:38,370 INFO L225 Difference]: With dead ends: 642 [2023-11-29 06:05:38,370 INFO L226 Difference]: Without dead ends: 410 [2023-11-29 06:05:38,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:05:38,371 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 100 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:05:38,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 419 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:05:38,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-29 06:05:38,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 311. [2023-11-29 06:05:38,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 289 states have (on average 1.2283737024221453) internal successors, (355), 289 states have internal predecessors, (355), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:05:38,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 385 transitions. [2023-11-29 06:05:38,421 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 385 transitions. Word has length 124 [2023-11-29 06:05:38,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:05:38,422 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 385 transitions. [2023-11-29 06:05:38,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:38,422 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 385 transitions. [2023-11-29 06:05:38,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 06:05:38,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:05:38,423 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:05:38,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Ended with exit code 0 [2023-11-29 06:05:38,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:38,623 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:05:38,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:05:38,624 INFO L85 PathProgramCache]: Analyzing trace with hash 852638479, now seen corresponding path program 1 times [2023-11-29 06:05:38,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:05:38,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388213123] [2023-11-29 06:05:38,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:38,624 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:38,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:05:38,625 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:05:38,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-11-29 06:05:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:05:39,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 06:05:39,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:05:43,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:05:43,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:05:45,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:05:46,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2023-11-29 06:05:47,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-11-29 06:05:47,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 71 [2023-11-29 06:05:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 2 proven. 135 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:05:48,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:05:51,044 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-29 06:05:51,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:05:51,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388213123] [2023-11-29 06:05:51,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388213123] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:05:51,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:05:51,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 18 [2023-11-29 06:05:51,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965436544] [2023-11-29 06:05:51,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:05:51,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:05:51,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:05:51,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:05:51,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:05:51,046 INFO L87 Difference]: Start difference. First operand 311 states and 385 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:54,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:05:54,475 INFO L93 Difference]: Finished difference Result 537 states and 671 transitions. [2023-11-29 06:05:54,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:05:54,476 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 128 [2023-11-29 06:05:54,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:05:54,477 INFO L225 Difference]: With dead ends: 537 [2023-11-29 06:05:54,477 INFO L226 Difference]: Without dead ends: 331 [2023-11-29 06:05:54,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:05:54,478 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 58 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:05:54,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 574 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:05:54,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-11-29 06:05:54,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 311. [2023-11-29 06:05:54,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 289 states have (on average 1.2283737024221453) internal successors, (355), 289 states have internal predecessors, (355), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:05:54,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 385 transitions. [2023-11-29 06:05:54,532 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 385 transitions. Word has length 128 [2023-11-29 06:05:54,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:05:54,532 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 385 transitions. [2023-11-29 06:05:54,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:05:54,532 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 385 transitions. [2023-11-29 06:05:54,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 06:05:54,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:05:54,534 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:05:54,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2023-11-29 06:05:54,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:54,734 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:05:54,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:05:54,735 INFO L85 PathProgramCache]: Analyzing trace with hash 43291853, now seen corresponding path program 1 times [2023-11-29 06:05:54,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:05:54,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434119034] [2023-11-29 06:05:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:05:54,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:05:54,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:05:54,736 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:05:54,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-11-29 06:05:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:05:55,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 06:05:55,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:05:59,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:05:59,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:06:01,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:06:03,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2023-11-29 06:06:03,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-11-29 06:06:04,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 06:06:05,174 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 5 proven. 132 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:06:05,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:06:10,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:06:10,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434119034] [2023-11-29 06:06:10,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434119034] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:06:10,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [493099310] [2023-11-29 06:06:10,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:10,419 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 06:06:10,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 06:06:10,421 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 06:06:10,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-11-29 06:06:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:06:11,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:06:11,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-29 06:06:12,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:06:12,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [493099310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:06:12,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:06:12,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2023-11-29 06:06:12,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367628519] [2023-11-29 06:06:12,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:06:12,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:06:12,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:06:12,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:06:12,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:06:12,153 INFO L87 Difference]: Start difference. First operand 311 states and 385 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:06:12,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:12,405 INFO L93 Difference]: Finished difference Result 517 states and 649 transitions. [2023-11-29 06:06:12,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:06:12,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 128 [2023-11-29 06:06:12,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:12,407 INFO L225 Difference]: With dead ends: 517 [2023-11-29 06:06:12,407 INFO L226 Difference]: Without dead ends: 311 [2023-11-29 06:06:12,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:06:12,408 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 2 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:12,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 140 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:06:12,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-11-29 06:06:12,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2023-11-29 06:06:12,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 289 states have (on average 1.207612456747405) internal successors, (349), 289 states have internal predecessors, (349), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:06:12,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 379 transitions. [2023-11-29 06:06:12,453 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 379 transitions. Word has length 128 [2023-11-29 06:06:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:12,454 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 379 transitions. [2023-11-29 06:06:12,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:06:12,454 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 379 transitions. [2023-11-29 06:06:12,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 06:06:12,455 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:12,455 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:06:12,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-11-29 06:06:12,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Ended with exit code 0 [2023-11-29 06:06:12,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:06:12,856 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:06:12,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:12,856 INFO L85 PathProgramCache]: Analyzing trace with hash -466181237, now seen corresponding path program 1 times [2023-11-29 06:06:12,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:06:12,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475397014] [2023-11-29 06:06:12,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:12,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:06:12,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:06:12,858 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:06:12,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-11-29 06:06:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:06:13,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 06:06:13,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:17,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:06:17,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:06:19,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:06:21,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2023-11-29 06:06:21,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-11-29 06:06:22,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 06:06:23,196 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 5 proven. 132 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:06:23,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:06:28,657 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:06:28,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475397014] [2023-11-29 06:06:28,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475397014] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:06:28,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1903991286] [2023-11-29 06:06:28,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:28,657 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 06:06:28,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 06:06:28,658 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 06:06:28,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-11-29 06:06:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:06:29,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:06:29,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:30,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:06:30,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 31 [2023-11-29 06:06:30,536 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-11-29 06:06:30,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:06:30,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1903991286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:06:30,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:06:30,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2023-11-29 06:06:30,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745618581] [2023-11-29 06:06:30,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:06:30,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:06:30,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:06:30,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:06:30,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:06:30,538 INFO L87 Difference]: Start difference. First operand 311 states and 379 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:06:30,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:06:30,917 INFO L93 Difference]: Finished difference Result 555 states and 678 transitions. [2023-11-29 06:06:30,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:06:30,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 128 [2023-11-29 06:06:30,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:06:30,920 INFO L225 Difference]: With dead ends: 555 [2023-11-29 06:06:30,920 INFO L226 Difference]: Without dead ends: 349 [2023-11-29 06:06:30,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 269 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:06:30,921 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 30 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:06:30,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 239 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:06:30,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-11-29 06:06:30,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 311. [2023-11-29 06:06:30,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 289 states have (on average 1.1868512110726643) internal successors, (343), 289 states have internal predecessors, (343), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:06:30,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 373 transitions. [2023-11-29 06:06:30,970 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 373 transitions. Word has length 128 [2023-11-29 06:06:30,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:06:30,970 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 373 transitions. [2023-11-29 06:06:30,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:06:30,970 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 373 transitions. [2023-11-29 06:06:30,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 06:06:30,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:06:30,971 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:06:30,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Ended with exit code 0 [2023-11-29 06:06:31,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-11-29 06:06:31,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 06:06:31,372 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:06:31,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:06:31,372 INFO L85 PathProgramCache]: Analyzing trace with hash 2023347725, now seen corresponding path program 1 times [2023-11-29 06:06:31,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:06:31,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316257359] [2023-11-29 06:06:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:31,373 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:06:31,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:06:31,374 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:06:31,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-11-29 06:06:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:06:31,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 06:06:31,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:36,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:06:36,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:06:38,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:06:39,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 35 [2023-11-29 06:06:40,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2023-11-29 06:06:41,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-11-29 06:06:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 5 proven. 132 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:06:42,166 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:06:47,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:06:47,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316257359] [2023-11-29 06:06:47,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316257359] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:06:47,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1712568379] [2023-11-29 06:06:47,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:06:47,348 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 06:06:47,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 06:06:47,349 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 06:06:47,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-11-29 06:06:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:06:49,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-29 06:06:49,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:06:56,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:06:57,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:06:59,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2023-11-29 06:06:59,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 06:07:03,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 06:07:10,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2023-11-29 06:07:11,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 06:07:12,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2023-11-29 06:07:16,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2023-11-29 06:07:17,338 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 5 proven. 132 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 06:07:17,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:07:21,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 88 [2023-11-29 06:07:33,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1712568379] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:07:33,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:07:33,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16] total 27 [2023-11-29 06:07:33,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092338137] [2023-11-29 06:07:33,039 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:07:33,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 06:07:33,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:07:33,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 06:07:33,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1418, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 06:07:33,040 INFO L87 Difference]: Start difference. First operand 311 states and 373 transitions. Second operand has 28 states, 28 states have (on average 5.75) internal successors, (161), 27 states have internal predecessors, (161), 4 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-29 06:08:18,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:08:18,012 INFO L93 Difference]: Finished difference Result 725 states and 854 transitions. [2023-11-29 06:08:18,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 06:08:18,014 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.75) internal successors, (161), 27 states have internal predecessors, (161), 4 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 128 [2023-11-29 06:08:18,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:08:18,017 INFO L225 Difference]: With dead ends: 725 [2023-11-29 06:08:18,017 INFO L226 Difference]: Without dead ends: 519 [2023-11-29 06:08:18,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 286 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1101 ImplicationChecksByTransitivity, 42.2s TimeCoverageRelationStatistics Valid=838, Invalid=3584, Unknown=0, NotChecked=0, Total=4422 [2023-11-29 06:08:18,019 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 375 mSDsluCounter, 2361 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 2169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:08:18,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 2549 Invalid, 2169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 24.5s Time] [2023-11-29 06:08:18,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-11-29 06:08:18,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 337. [2023-11-29 06:08:18,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 315 states have (on average 1.1968253968253968) internal successors, (377), 315 states have internal predecessors, (377), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:08:18,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 407 transitions. [2023-11-29 06:08:18,071 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 407 transitions. Word has length 128 [2023-11-29 06:08:18,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:08:18,071 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 407 transitions. [2023-11-29 06:08:18,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.75) internal successors, (161), 27 states have internal predecessors, (161), 4 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-29 06:08:18,071 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 407 transitions. [2023-11-29 06:08:18,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 06:08:18,072 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:08:18,072 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:08:18,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-11-29 06:08:18,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-11-29 06:08:18,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:08:18,473 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:08:18,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:18,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1981009802, now seen corresponding path program 1 times [2023-11-29 06:08:18,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:08:18,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155339911] [2023-11-29 06:08:18,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:18,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:08:18,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:08:18,474 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:08:18,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-11-29 06:08:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:19,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 06:08:19,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:23,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 06:08:25,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 79 [2023-11-29 06:08:44,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 44 [2023-11-29 06:08:50,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2023-11-29 06:08:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 4 proven. 407 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2023-11-29 06:08:50,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:08:51,529 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2023-11-29 06:08:51,529 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:08:51,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155339911] [2023-11-29 06:08:51,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155339911] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:08:51,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:08:51,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 19 [2023-11-29 06:08:51,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073701792] [2023-11-29 06:08:51,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:08:51,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:08:51,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:08:51,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:08:51,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=282, Unknown=5, NotChecked=0, Total=342 [2023-11-29 06:08:51,531 INFO L87 Difference]: Start difference. First operand 337 states and 407 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:08:52,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:08:52,505 INFO L93 Difference]: Finished difference Result 550 states and 667 transitions. [2023-11-29 06:08:52,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:08:52,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 179 [2023-11-29 06:08:52,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:08:52,508 INFO L225 Difference]: With dead ends: 550 [2023-11-29 06:08:52,508 INFO L226 Difference]: Without dead ends: 344 [2023-11-29 06:08:52,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=73, Invalid=384, Unknown=5, NotChecked=0, Total=462 [2023-11-29 06:08:52,509 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 35 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:08:52,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 383 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:08:52,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-29 06:08:52,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 337. [2023-11-29 06:08:52,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 315 states have (on average 1.1968253968253968) internal successors, (377), 315 states have internal predecessors, (377), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 06:08:52,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 407 transitions. [2023-11-29 06:08:52,557 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 407 transitions. Word has length 179 [2023-11-29 06:08:52,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:08:52,557 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 407 transitions. [2023-11-29 06:08:52,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:08:52,557 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 407 transitions. [2023-11-29 06:08:52,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-29 06:08:52,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:08:52,558 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:08:52,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Ended with exit code 0 [2023-11-29 06:08:52,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:08:52,759 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:08:52,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:08:52,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1569518915, now seen corresponding path program 1 times [2023-11-29 06:08:52,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 06:08:52,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724896718] [2023-11-29 06:08:52,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:08:52,760 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:08:52,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 06:08:52,761 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 06:08:52,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-11-29 06:08:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:08:53,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-29 06:08:53,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:08:58,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-11-29 06:08:59,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-11-29 06:09:01,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-11-29 06:09:06,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2023-11-29 06:09:07,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2023-11-29 06:09:07,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 06:09:09,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 06:09:12,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31 [2023-11-29 06:09:13,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 50 [2023-11-29 06:09:18,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 65 [2023-11-29 06:09:19,510 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 11 proven. 405 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 06:09:19,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:09:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2023-11-29 06:09:23,800 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 06:09:23,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724896718] [2023-11-29 06:09:23,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724896718] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 06:09:23,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:09:23,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 24 [2023-11-29 06:09:23,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178421695] [2023-11-29 06:09:23,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:09:23,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:09:23,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 06:09:23,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:09:23,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:09:23,802 INFO L87 Difference]: Start difference. First operand 337 states and 407 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:09:28,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:09:28,951 INFO L93 Difference]: Finished difference Result 567 states and 683 transitions. [2023-11-29 06:09:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:09:28,956 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 190 [2023-11-29 06:09:28,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:09:28,956 INFO L225 Difference]: With dead ends: 567 [2023-11-29 06:09:28,956 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 06:09:28,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 355 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2023-11-29 06:09:28,957 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 65 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:09:28,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 431 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 06:09:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 06:09:28,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 06:09:28,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:09:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 06:09:28,958 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 190 [2023-11-29 06:09:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:09:28,958 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 06:09:28,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:09:28,959 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 06:09:28,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 06:09:28,961 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 06:09:28,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Ended with exit code 0 [2023-11-29 06:09:29,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67b5afe1-dc4e-4312-b800-4a92e7819aca/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 06:09:29,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 06:09:40,297 WARN L293 SmtUtils]: Spent 11.13s on a formula simplification. DAG size of input: 388 DAG size of output: 409 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-29 06:09:51,077 WARN L293 SmtUtils]: Spent 10.78s on a formula simplification. DAG size of input: 388 DAG size of output: 409 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-29 06:10:49,905 WARN L293 SmtUtils]: Spent 58.83s on a formula simplification. DAG size of input: 405 DAG size of output: 530 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-29 06:10:59,915 WARN L293 SmtUtils]: Spent 10.01s on a formula simplification. DAG size of input: 388 DAG size of output: 409 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)