./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/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_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/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_f7338810-e4a4-452d-9aee-5a04580869b9/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 d1558071458a9b20d19a0574bae4bc888f78db92e0ff6316a4aff911aa1d4e26 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:33:06,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:33:06,204 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 00:33:06,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:33:06,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:33:06,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:33:06,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:33:06,230 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:33:06,231 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:33:06,231 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:33:06,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:33:06,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:33:06,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:33:06,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:33:06,234 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:33:06,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:33:06,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:33:06,236 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:33:06,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:33:06,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:33:06,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:33:06,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:33:06,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:33:06,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:33:06,239 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:33:06,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:33:06,240 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:33:06,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:33:06,241 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:33:06,241 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:33:06,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:33:06,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:33:06,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:33:06,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:33:06,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:33:06,243 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:33:06,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:33:06,243 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:33:06,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:33:06,243 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:33:06,243 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:33:06,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:33:06,244 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_f7338810-e4a4-452d-9aee-5a04580869b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1558071458a9b20d19a0574bae4bc888f78db92e0ff6316a4aff911aa1d4e26 [2023-11-29 00:33:06,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:33:06,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:33:06,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:33:06,487 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:33:06,487 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:33:06,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i [2023-11-29 00:33:09,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:33:09,425 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:33:09,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i [2023-11-29 00:33:09,433 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/data/dbc3594ce/028510d7ab7d49a596564499d54618ba/FLAG868a5897d [2023-11-29 00:33:09,445 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/data/dbc3594ce/028510d7ab7d49a596564499d54618ba [2023-11-29 00:33:09,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:33:09,449 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:33:09,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:33:09,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:33:09,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:33:09,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc93fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09, skipping insertion in model container [2023-11-29 00:33:09,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,481 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:33:09,594 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_f7338810-e4a4-452d-9aee-5a04580869b9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i[916,929] [2023-11-29 00:33:09,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:33:09,651 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:33:09,661 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_f7338810-e4a4-452d-9aee-5a04580869b9/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-87.i[916,929] [2023-11-29 00:33:09,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:33:09,706 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:33:09,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09 WrapperNode [2023-11-29 00:33:09,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:33:09,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:33:09,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:33:09,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:33:09,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,758 INFO L138 Inliner]: procedures = 26, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 390 [2023-11-29 00:33:09,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:33:09,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:33:09,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:33:09,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:33:09,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,798 INFO L175 MemorySlicer]: Split 119 memory accesses to 14 slices as follows [2, 3, 12, 16, 7, 10, 12, 16, 12, 8, 5, 5, 6, 5]. 13 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 17 writes are split as follows [0, 1, 1, 1, 3, 1, 1, 1, 1, 3, 1, 1, 1, 1]. [2023-11-29 00:33:09,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,811 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,828 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:33:09,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:33:09,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:33:09,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:33:09,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (1/1) ... [2023-11-29 00:33:09,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:33:09,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:09,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:33:09,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:33:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:33:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:33:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:33:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 00:33:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 00:33:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 00:33:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 00:33:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 00:33:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 00:33:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 00:33:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 00:33:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-29 00:33:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-29 00:33:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-29 00:33:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-29 00:33:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:33:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:33:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:33:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 00:33:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 00:33:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 00:33:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 00:33:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 00:33:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 00:33:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 00:33:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-29 00:33:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-29 00:33:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-29 00:33:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-29 00:33:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 00:33:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 00:33:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:33:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:33:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:33:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 00:33:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 00:33:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 00:33:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 00:33:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 00:33:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 00:33:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 00:33:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-29 00:33:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-29 00:33:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-29 00:33:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-29 00:33:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:33:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:33:10,051 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:33:10,053 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:33:10,395 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:33:10,482 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:33:10,482 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 00:33:10,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:33:10 BoogieIcfgContainer [2023-11-29 00:33:10,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:33:10,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:33:10,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:33:10,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:33:10,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:33:09" (1/3) ... [2023-11-29 00:33:10,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d014f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:33:10, skipping insertion in model container [2023-11-29 00:33:10,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:09" (2/3) ... [2023-11-29 00:33:10,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d014f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:33:10, skipping insertion in model container [2023-11-29 00:33:10,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:33:10" (3/3) ... [2023-11-29 00:33:10,490 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-87.i [2023-11-29 00:33:10,504 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:33:10,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 00:33:10,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:33:10,553 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;@2017f180, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:33:10,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 00:33:10,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 64 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:33:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 00:33:10,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:10,571 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:10,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:10,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:10,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1495594445, now seen corresponding path program 1 times [2023-11-29 00:33:10,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:10,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122459253] [2023-11-29 00:33:10,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:10,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:10,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:10,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122459253] [2023-11-29 00:33:10,794 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 00:33:10,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90139149] [2023-11-29 00:33:10,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:10,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:10,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:10,799 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:10,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:33:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:11,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 00:33:11,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:11,088 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-11-29 00:33:11,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:11,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90139149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:11,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:11,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:33:11,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083353113] [2023-11-29 00:33:11,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:11,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:33:11,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:11,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:33:11,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:33:11,125 INFO L87 Difference]: Start difference. First operand has 80 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 64 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 00:33:11,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:11,163 INFO L93 Difference]: Finished difference Result 157 states and 246 transitions. [2023-11-29 00:33:11,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:33:11,166 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2023-11-29 00:33:11,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:11,173 INFO L225 Difference]: With dead ends: 157 [2023-11-29 00:33:11,173 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 00:33:11,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 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 00:33:11,180 INFO L413 NwaCegarLoop]: 106 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, 106 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 00:33:11,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:33:11,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 00:33:11,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-29 00:33:11,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 62 states have internal predecessors, (82), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:33:11,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2023-11-29 00:33:11,218 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 106 [2023-11-29 00:33:11,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:11,218 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2023-11-29 00:33:11,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 00:33:11,219 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2023-11-29 00:33:11,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 00:33:11,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:11,223 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:11,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:33:11,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:11,424 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:11,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:11,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1477731561, now seen corresponding path program 1 times [2023-11-29 00:33:11,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:11,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976802988] [2023-11-29 00:33:11,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:11,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:11,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:11,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [801906343] [2023-11-29 00:33:11,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:11,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:11,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:11,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:11,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:33:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:11,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:33:11,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:11,784 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:11,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:11,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:11,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976802988] [2023-11-29 00:33:11,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:11,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801906343] [2023-11-29 00:33:11,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801906343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:11,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:11,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:33:11,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680145249] [2023-11-29 00:33:11,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:11,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:33:11,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:11,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:33:11,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:33:11,790 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:11,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:11,845 INFO L93 Difference]: Finished difference Result 167 states and 236 transitions. [2023-11-29 00:33:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:33:11,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-11-29 00:33:11,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:11,848 INFO L225 Difference]: With dead ends: 167 [2023-11-29 00:33:11,848 INFO L226 Difference]: Without dead ends: 90 [2023-11-29 00:33:11,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 00:33:11,851 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 21 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 309 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 00:33:11,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 309 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:33:11,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-29 00:33:11,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2023-11-29 00:33:11,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:33:11,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 112 transitions. [2023-11-29 00:33:11,866 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 112 transitions. Word has length 106 [2023-11-29 00:33:11,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:11,868 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 112 transitions. [2023-11-29 00:33:11,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 112 transitions. [2023-11-29 00:33:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 00:33:11,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:11,871 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:11,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:33:12,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 00:33:12,072 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:12,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:12,073 INFO L85 PathProgramCache]: Analyzing trace with hash 2007889109, now seen corresponding path program 1 times [2023-11-29 00:33:12,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:12,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960718477] [2023-11-29 00:33:12,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:12,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:12,126 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:12,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1788065088] [2023-11-29 00:33:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:12,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:12,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:12,128 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:12,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:33:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:12,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:33:12,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:12,362 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:12,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:12,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:12,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960718477] [2023-11-29 00:33:12,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:12,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788065088] [2023-11-29 00:33:12,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788065088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:12,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:12,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:33:12,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778357270] [2023-11-29 00:33:12,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:12,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:33:12,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:12,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:33:12,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:33:12,366 INFO L87 Difference]: Start difference. First operand 80 states and 112 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:12,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:12,409 INFO L93 Difference]: Finished difference Result 167 states and 234 transitions. [2023-11-29 00:33:12,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:33:12,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-11-29 00:33:12,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:12,412 INFO L225 Difference]: With dead ends: 167 [2023-11-29 00:33:12,412 INFO L226 Difference]: Without dead ends: 88 [2023-11-29 00:33:12,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 00:33:12,414 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 12 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 307 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 00:33:12,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 307 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:33:12,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-11-29 00:33:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2023-11-29 00:33:12,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.303030303030303) internal successors, (86), 66 states have internal predecessors, (86), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:33:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 114 transitions. [2023-11-29 00:33:12,425 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 114 transitions. Word has length 106 [2023-11-29 00:33:12,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:12,426 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 114 transitions. [2023-11-29 00:33:12,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:12,426 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 114 transitions. [2023-11-29 00:33:12,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 00:33:12,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:12,428 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:12,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:33:12,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 00:33:12,632 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:12,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:12,633 INFO L85 PathProgramCache]: Analyzing trace with hash 2065147411, now seen corresponding path program 1 times [2023-11-29 00:33:12,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:12,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068151349] [2023-11-29 00:33:12,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:12,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:12,678 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:12,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1571481011] [2023-11-29 00:33:12,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:12,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:12,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:12,680 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:12,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:33:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:12,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:33:12,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:12,903 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:12,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:12,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:12,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068151349] [2023-11-29 00:33:12,904 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:12,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571481011] [2023-11-29 00:33:12,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571481011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:12,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:12,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:33:12,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052810060] [2023-11-29 00:33:12,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:12,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:33:12,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:12,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:33:12,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:33:12,907 INFO L87 Difference]: Start difference. First operand 82 states and 114 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:12,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:12,944 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2023-11-29 00:33:12,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:33:12,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-11-29 00:33:12,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:12,947 INFO L225 Difference]: With dead ends: 167 [2023-11-29 00:33:12,947 INFO L226 Difference]: Without dead ends: 86 [2023-11-29 00:33:12,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 00:33:12,949 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 3 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:12,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 307 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:33:12,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-29 00:33:12,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-11-29 00:33:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:33:12,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2023-11-29 00:33:12,959 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 106 [2023-11-29 00:33:12,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:12,959 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2023-11-29 00:33:12,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:12,960 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2023-11-29 00:33:12,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 00:33:12,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:12,962 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:12,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:33:13,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:13,168 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:13,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:13,169 INFO L85 PathProgramCache]: Analyzing trace with hash 2065206993, now seen corresponding path program 1 times [2023-11-29 00:33:13,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:13,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821487417] [2023-11-29 00:33:13,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:13,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:13,214 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:13,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1203260500] [2023-11-29 00:33:13,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:13,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:13,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:13,216 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:13,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 00:33:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:13,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:33:13,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:13,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:13,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:13,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821487417] [2023-11-29 00:33:13,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:13,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203260500] [2023-11-29 00:33:13,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203260500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:13,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:13,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:33:13,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421563991] [2023-11-29 00:33:13,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:13,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:33:13,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:13,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:33:13,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:33:13,445 INFO L87 Difference]: Start difference. First operand 84 states and 116 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:13,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:13,483 INFO L93 Difference]: Finished difference Result 196 states and 271 transitions. [2023-11-29 00:33:13,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:33:13,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-11-29 00:33:13,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:13,485 INFO L225 Difference]: With dead ends: 196 [2023-11-29 00:33:13,485 INFO L226 Difference]: Without dead ends: 113 [2023-11-29 00:33:13,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 00:33:13,487 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 55 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 295 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 00:33:13,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 295 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:33:13,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-29 00:33:13,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 86. [2023-11-29 00:33:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:33:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2023-11-29 00:33:13,497 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 106 [2023-11-29 00:33:13,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:13,498 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2023-11-29 00:33:13,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:13,498 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2023-11-29 00:33:13,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 00:33:13,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:13,500 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:13,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 00:33:13,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:13,704 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:13,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:13,705 INFO L85 PathProgramCache]: Analyzing trace with hash 196401453, now seen corresponding path program 1 times [2023-11-29 00:33:13,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:13,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511234942] [2023-11-29 00:33:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:13,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:13,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:13,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445440854] [2023-11-29 00:33:13,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:13,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:13,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:13,741 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:13,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 00:33:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:13,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:33:13,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:13,971 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 00:33:14,025 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:14,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:14,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:14,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511234942] [2023-11-29 00:33:14,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:14,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445440854] [2023-11-29 00:33:14,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445440854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:14,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:14,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:33:14,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263137452] [2023-11-29 00:33:14,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:14,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:33:14,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:14,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:33:14,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:33:14,028 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:14,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:14,173 INFO L93 Difference]: Finished difference Result 252 states and 343 transitions. [2023-11-29 00:33:14,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:33:14,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-11-29 00:33:14,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:14,176 INFO L225 Difference]: With dead ends: 252 [2023-11-29 00:33:14,176 INFO L226 Difference]: Without dead ends: 167 [2023-11-29 00:33:14,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:33:14,178 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 154 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:14,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 560 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:33:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-11-29 00:33:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 149. [2023-11-29 00:33:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 124 states have (on average 1.282258064516129) internal successors, (159), 125 states have internal predecessors, (159), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 00:33:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 203 transitions. [2023-11-29 00:33:14,194 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 203 transitions. Word has length 108 [2023-11-29 00:33:14,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:14,194 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 203 transitions. [2023-11-29 00:33:14,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:14,195 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 203 transitions. [2023-11-29 00:33:14,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 00:33:14,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:14,197 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:14,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 00:33:14,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:14,400 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:14,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:14,401 INFO L85 PathProgramCache]: Analyzing trace with hash -538273384, now seen corresponding path program 1 times [2023-11-29 00:33:14,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:14,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899278531] [2023-11-29 00:33:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:14,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:14,433 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:14,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [485569452] [2023-11-29 00:33:14,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:14,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:14,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:14,434 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:14,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 00:33:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:14,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:33:14,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:14,687 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 00:33:14,699 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:14,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:14,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:14,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899278531] [2023-11-29 00:33:14,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:14,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485569452] [2023-11-29 00:33:14,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485569452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:14,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:14,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:33:14,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341753639] [2023-11-29 00:33:14,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:14,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:33:14,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:14,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:33:14,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:33:14,702 INFO L87 Difference]: Start difference. First operand 149 states and 203 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:14,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:14,826 INFO L93 Difference]: Finished difference Result 491 states and 670 transitions. [2023-11-29 00:33:14,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:33:14,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-11-29 00:33:14,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:14,831 INFO L225 Difference]: With dead ends: 491 [2023-11-29 00:33:14,831 INFO L226 Difference]: Without dead ends: 343 [2023-11-29 00:33:14,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 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 00:33:14,833 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 161 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:14,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 516 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:33:14,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-29 00:33:14,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 166. [2023-11-29 00:33:14,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 141 states have (on average 1.3049645390070923) internal successors, (184), 142 states have internal predecessors, (184), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 00:33:14,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 228 transitions. [2023-11-29 00:33:14,853 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 228 transitions. Word has length 108 [2023-11-29 00:33:14,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:14,853 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 228 transitions. [2023-11-29 00:33:14,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:14,854 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 228 transitions. [2023-11-29 00:33:14,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 00:33:14,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:14,855 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:14,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 00:33:15,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:15,056 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:15,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:15,057 INFO L85 PathProgramCache]: Analyzing trace with hash 875914630, now seen corresponding path program 1 times [2023-11-29 00:33:15,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:15,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919474603] [2023-11-29 00:33:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:15,089 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:15,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398179206] [2023-11-29 00:33:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:15,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:15,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:15,091 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:15,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 00:33:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:15,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 00:33:15,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:15,770 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 1 [2023-11-29 00:33:15,897 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 15 treesize of output 11 [2023-11-29 00:33:15,900 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 00:33:15,927 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 00:33:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 52 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-11-29 00:33:15,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:16,107 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 32 treesize of output 28 [2023-11-29 00:33:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-29 00:33:16,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:16,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919474603] [2023-11-29 00:33:16,251 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:16,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398179206] [2023-11-29 00:33:16,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398179206] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:33:16,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:33:16,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-11-29 00:33:16,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615707420] [2023-11-29 00:33:16,252 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:33:16,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 00:33:16,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:16,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 00:33:16,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:33:16,254 INFO L87 Difference]: Start difference. First operand 166 states and 228 transitions. Second operand has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 6 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) [2023-11-29 00:33:16,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:16,899 INFO L93 Difference]: Finished difference Result 362 states and 497 transitions. [2023-11-29 00:33:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:33:16,899 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 6 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) Word has length 109 [2023-11-29 00:33:16,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:16,902 INFO L225 Difference]: With dead ends: 362 [2023-11-29 00:33:16,902 INFO L226 Difference]: Without dead ends: 180 [2023-11-29 00:33:16,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=464, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:33:16,903 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 266 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:16,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 467 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:33:16,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-29 00:33:16,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 173. [2023-11-29 00:33:16,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 135 states have (on average 1.237037037037037) internal successors, (167), 137 states have internal predecessors, (167), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 00:33:16,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 235 transitions. [2023-11-29 00:33:16,922 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 235 transitions. Word has length 109 [2023-11-29 00:33:16,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:16,922 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 235 transitions. [2023-11-29 00:33:16,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 6 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 6 states have call successors, (28) [2023-11-29 00:33:16,923 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 235 transitions. [2023-11-29 00:33:16,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 00:33:16,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:16,924 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:16,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 00:33:17,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:17,128 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:17,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:17,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1610739743, now seen corresponding path program 1 times [2023-11-29 00:33:17,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:17,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164996036] [2023-11-29 00:33:17,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:17,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:17,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:17,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305757950] [2023-11-29 00:33:17,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:17,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:17,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:17,161 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:17,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 00:33:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:17,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-29 00:33:17,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:17,697 INFO L349 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2023-11-29 00:33:17,697 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 31 treesize of output 36 [2023-11-29 00:33:17,729 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 25 treesize of output 17 [2023-11-29 00:33:17,753 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 27 treesize of output 19 [2023-11-29 00:33:17,791 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-29 00:33:17,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:17,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:17,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164996036] [2023-11-29 00:33:17,994 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:17,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305757950] [2023-11-29 00:33:17,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305757950] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 00:33:17,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:33:17,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2023-11-29 00:33:17,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323052333] [2023-11-29 00:33:17,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:17,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:33:17,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:17,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:33:17,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:33:17,997 INFO L87 Difference]: Start difference. First operand 173 states and 235 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:18,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:18,230 INFO L93 Difference]: Finished difference Result 321 states and 433 transitions. [2023-11-29 00:33:18,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:33:18,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2023-11-29 00:33:18,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:18,233 INFO L225 Difference]: With dead ends: 321 [2023-11-29 00:33:18,233 INFO L226 Difference]: Without dead ends: 173 [2023-11-29 00:33:18,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:33:18,235 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 163 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:18,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 488 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:33:18,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-29 00:33:18,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-11-29 00:33:18,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 135 states have (on average 1.2222222222222223) internal successors, (165), 137 states have internal predecessors, (165), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 00:33:18,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 233 transitions. [2023-11-29 00:33:18,257 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 233 transitions. Word has length 110 [2023-11-29 00:33:18,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:18,257 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 233 transitions. [2023-11-29 00:33:18,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:18,257 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 233 transitions. [2023-11-29 00:33:18,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 00:33:18,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:18,259 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:18,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 00:33:18,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 00:33:18,460 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:18,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:18,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1432588186, now seen corresponding path program 1 times [2023-11-29 00:33:18,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:18,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153527726] [2023-11-29 00:33:18,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:18,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:18,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:18,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196684978] [2023-11-29 00:33:18,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:18,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:18,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:18,492 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:18,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 00:33:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:18,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 00:33:18,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:18,791 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 1 [2023-11-29 00:33:19,152 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 17 treesize of output 9 [2023-11-29 00:33:19,167 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 10 proven. 162 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 00:33:19,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:19,407 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 32 treesize of output 28 [2023-11-29 00:33:19,447 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-29 00:33:19,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:19,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153527726] [2023-11-29 00:33:19,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:19,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196684978] [2023-11-29 00:33:19,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196684978] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:33:19,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:33:19,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-11-29 00:33:19,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993759987] [2023-11-29 00:33:19,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:33:19,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 00:33:19,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:19,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 00:33:19,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:33:19,451 INFO L87 Difference]: Start difference. First operand 173 states and 233 transitions. Second operand has 16 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-29 00:33:19,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:19,823 INFO L93 Difference]: Finished difference Result 274 states and 356 transitions. [2023-11-29 00:33:19,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:33:19,824 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) Word has length 113 [2023-11-29 00:33:19,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:19,826 INFO L225 Difference]: With dead ends: 274 [2023-11-29 00:33:19,826 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 00:33:19,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2023-11-29 00:33:19,828 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 121 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:19,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 355 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:33:19,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 00:33:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2023-11-29 00:33:19,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.1444444444444444) internal successors, (103), 91 states have internal predecessors, (103), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 00:33:19,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 155 transitions. [2023-11-29 00:33:19,842 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 155 transitions. Word has length 113 [2023-11-29 00:33:19,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:19,842 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 155 transitions. [2023-11-29 00:33:19,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.642857142857143) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-29 00:33:19,842 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 155 transitions. [2023-11-29 00:33:19,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 00:33:19,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:19,844 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:19,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 00:33:20,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 00:33:20,044 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:20,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash -862587025, now seen corresponding path program 1 times [2023-11-29 00:33:20,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:20,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127763467] [2023-11-29 00:33:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:20,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:20,071 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:20,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1568173144] [2023-11-29 00:33:20,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:20,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:20,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:20,072 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:20,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 00:33:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:20,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 00:33:20,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:20,264 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 00:33:20,319 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 49 treesize of output 37 [2023-11-29 00:33:20,353 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:20,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:20,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:20,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127763467] [2023-11-29 00:33:20,354 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:20,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568173144] [2023-11-29 00:33:20,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568173144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:20,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:20,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:33:20,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286725962] [2023-11-29 00:33:20,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:20,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:33:20,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:20,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:33:20,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:33:20,356 INFO L87 Difference]: Start difference. First operand 122 states and 155 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:20,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:20,434 INFO L93 Difference]: Finished difference Result 131 states and 163 transitions. [2023-11-29 00:33:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:33:20,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-11-29 00:33:20,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:20,436 INFO L225 Difference]: With dead ends: 131 [2023-11-29 00:33:20,436 INFO L226 Difference]: Without dead ends: 129 [2023-11-29 00:33:20,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:33:20,437 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 64 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:20,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 394 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:33:20,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-29 00:33:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2023-11-29 00:33:20,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 95 states have (on average 1.1368421052631579) internal successors, (108), 96 states have internal predecessors, (108), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 00:33:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 160 transitions. [2023-11-29 00:33:20,451 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 160 transitions. Word has length 114 [2023-11-29 00:33:20,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:20,451 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 160 transitions. [2023-11-29 00:33:20,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:20,451 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 160 transitions. [2023-11-29 00:33:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 00:33:20,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:20,453 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:20,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 00:33:20,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 00:33:20,653 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:20,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:20,654 INFO L85 PathProgramCache]: Analyzing trace with hash -862527443, now seen corresponding path program 1 times [2023-11-29 00:33:20,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:20,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567580025] [2023-11-29 00:33:20,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:20,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:20,680 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:20,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466772485] [2023-11-29 00:33:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:20,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:20,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:20,682 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:20,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 00:33:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:20,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:33:20,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:20,913 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 00:33:20,961 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 49 treesize of output 37 [2023-11-29 00:33:20,971 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:20,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:20,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:20,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567580025] [2023-11-29 00:33:20,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:20,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466772485] [2023-11-29 00:33:20,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466772485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:20,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:20,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:33:20,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958094687] [2023-11-29 00:33:20,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:20,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:33:20,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:20,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:33:20,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:33:20,973 INFO L87 Difference]: Start difference. First operand 128 states and 160 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:21,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:21,030 INFO L93 Difference]: Finished difference Result 232 states and 284 transitions. [2023-11-29 00:33:21,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:33:21,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-11-29 00:33:21,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:21,032 INFO L225 Difference]: With dead ends: 232 [2023-11-29 00:33:21,032 INFO L226 Difference]: Without dead ends: 133 [2023-11-29 00:33:21,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 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 00:33:21,034 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 72 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:21,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 423 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:33:21,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-29 00:33:21,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2023-11-29 00:33:21,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 98 states have (on average 1.1224489795918366) internal successors, (110), 99 states have internal predecessors, (110), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 00:33:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 162 transitions. [2023-11-29 00:33:21,049 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 162 transitions. Word has length 114 [2023-11-29 00:33:21,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:21,050 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 162 transitions. [2023-11-29 00:33:21,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 162 transitions. [2023-11-29 00:33:21,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 00:33:21,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:21,051 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:21,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 00:33:21,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 00:33:21,252 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:21,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:21,252 INFO L85 PathProgramCache]: Analyzing trace with hash -805269141, now seen corresponding path program 1 times [2023-11-29 00:33:21,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:21,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352314409] [2023-11-29 00:33:21,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:21,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:21,278 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:21,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100070572] [2023-11-29 00:33:21,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:21,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:21,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:21,280 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:21,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 00:33:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:21,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:33:21,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:21,513 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 00:33:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:21,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:21,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:21,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352314409] [2023-11-29 00:33:21,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:21,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100070572] [2023-11-29 00:33:21,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100070572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:21,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:21,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:33:21,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513991593] [2023-11-29 00:33:21,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:21,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:33:21,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:21,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:33:21,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:33:21,575 INFO L87 Difference]: Start difference. First operand 132 states and 162 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:21,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:21,653 INFO L93 Difference]: Finished difference Result 239 states and 287 transitions. [2023-11-29 00:33:21,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:33:21,654 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-11-29 00:33:21,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:21,655 INFO L225 Difference]: With dead ends: 239 [2023-11-29 00:33:21,655 INFO L226 Difference]: Without dead ends: 136 [2023-11-29 00:33:21,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 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 00:33:21,657 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 65 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:21,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 255 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:33:21,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-29 00:33:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2023-11-29 00:33:21,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 101 states have (on average 1.108910891089109) internal successors, (112), 102 states have internal predecessors, (112), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 00:33:21,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2023-11-29 00:33:21,671 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 114 [2023-11-29 00:33:21,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:21,671 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2023-11-29 00:33:21,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:21,672 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2023-11-29 00:33:21,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 00:33:21,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:21,672 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:21,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 00:33:21,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:21,873 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:21,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:21,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1614615767, now seen corresponding path program 1 times [2023-11-29 00:33:21,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:21,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23081028] [2023-11-29 00:33:21,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:21,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:21,896 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:21,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396319920] [2023-11-29 00:33:21,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:21,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:21,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:21,897 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:21,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 00:33:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:22,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:33:22,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:22,118 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 00:33:22,158 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:22,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:22,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:22,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23081028] [2023-11-29 00:33:22,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:22,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396319920] [2023-11-29 00:33:22,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396319920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:22,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:22,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:33:22,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36903378] [2023-11-29 00:33:22,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:22,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:33:22,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:22,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:33:22,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:33:22,161 INFO L87 Difference]: Start difference. First operand 136 states and 164 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:22,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:22,270 INFO L93 Difference]: Finished difference Result 310 states and 369 transitions. [2023-11-29 00:33:22,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:33:22,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-11-29 00:33:22,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:22,272 INFO L225 Difference]: With dead ends: 310 [2023-11-29 00:33:22,272 INFO L226 Difference]: Without dead ends: 207 [2023-11-29 00:33:22,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:33:22,274 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 83 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:22,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 506 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:33:22,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-29 00:33:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 199. [2023-11-29 00:33:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 156 states have (on average 1.1282051282051282) internal successors, (176), 158 states have internal predecessors, (176), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 00:33:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 240 transitions. [2023-11-29 00:33:22,298 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 240 transitions. Word has length 114 [2023-11-29 00:33:22,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:22,299 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 240 transitions. [2023-11-29 00:33:22,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:22,299 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 240 transitions. [2023-11-29 00:33:22,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 00:33:22,300 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:22,300 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:22,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 00:33:22,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 00:33:22,501 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:22,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:22,501 INFO L85 PathProgramCache]: Analyzing trace with hash -955099930, now seen corresponding path program 1 times [2023-11-29 00:33:22,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:22,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598327562] [2023-11-29 00:33:22,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:22,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:22,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:22,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294199276] [2023-11-29 00:33:22,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:22,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:22,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:22,526 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:22,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 00:33:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:22,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 00:33:22,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:22,826 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 1 [2023-11-29 00:33:23,185 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 00:33:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 10 proven. 162 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 00:33:23,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:23,406 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 32 treesize of output 28 [2023-11-29 00:33:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 9 proven. 30 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-29 00:33:23,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:23,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598327562] [2023-11-29 00:33:23,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:23,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294199276] [2023-11-29 00:33:23,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294199276] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:33:23,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:33:23,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-11-29 00:33:23,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914058109] [2023-11-29 00:33:23,447 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:33:23,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 00:33:23,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:23,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 00:33:23,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:33:23,448 INFO L87 Difference]: Start difference. First operand 199 states and 240 transitions. Second operand has 16 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-29 00:33:23,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:23,801 INFO L93 Difference]: Finished difference Result 349 states and 413 transitions. [2023-11-29 00:33:23,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:33:23,802 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) Word has length 114 [2023-11-29 00:33:23,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:23,804 INFO L225 Difference]: With dead ends: 349 [2023-11-29 00:33:23,804 INFO L226 Difference]: Without dead ends: 183 [2023-11-29 00:33:23,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2023-11-29 00:33:23,806 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 189 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:23,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 261 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:33:23,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-29 00:33:23,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2023-11-29 00:33:23,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 134 states have (on average 1.0746268656716418) internal successors, (144), 136 states have internal predecessors, (144), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 00:33:23,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 208 transitions. [2023-11-29 00:33:23,837 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 208 transitions. Word has length 114 [2023-11-29 00:33:23,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:23,838 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 208 transitions. [2023-11-29 00:33:23,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.357142857142857) internal successors, (89), 15 states have internal predecessors, (89), 7 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (28), 5 states have call predecessors, (28), 7 states have call successors, (28) [2023-11-29 00:33:23,838 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 208 transitions. [2023-11-29 00:33:23,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 00:33:23,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:23,840 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:23,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 00:33:24,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 00:33:24,040 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:24,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:24,041 INFO L85 PathProgramCache]: Analyzing trace with hash 95165677, now seen corresponding path program 1 times [2023-11-29 00:33:24,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:24,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135630262] [2023-11-29 00:33:24,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:24,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:24,072 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:24,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [646824393] [2023-11-29 00:33:24,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:24,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:24,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:24,074 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:24,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 00:33:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:24,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:33:24,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:24,541 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 25 treesize of output 17 [2023-11-29 00:33:24,544 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 00:33:24,554 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:24,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:24,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:24,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135630262] [2023-11-29 00:33:24,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:24,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646824393] [2023-11-29 00:33:24,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646824393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:24,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:24,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:33:24,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507341512] [2023-11-29 00:33:24,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:24,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:33:24,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:24,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:33:24,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:33:24,557 INFO L87 Difference]: Start difference. First operand 177 states and 208 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:24,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:24,655 INFO L93 Difference]: Finished difference Result 358 states and 413 transitions. [2023-11-29 00:33:24,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:33:24,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2023-11-29 00:33:24,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:24,657 INFO L225 Difference]: With dead ends: 358 [2023-11-29 00:33:24,657 INFO L226 Difference]: Without dead ends: 214 [2023-11-29 00:33:24,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 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 00:33:24,658 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 34 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:24,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 362 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:33:24,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-29 00:33:24,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 188. [2023-11-29 00:33:24,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 145 states have (on average 1.0620689655172413) internal successors, (154), 147 states have internal predecessors, (154), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 00:33:24,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 218 transitions. [2023-11-29 00:33:24,676 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 218 transitions. Word has length 115 [2023-11-29 00:33:24,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:24,677 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 218 transitions. [2023-11-29 00:33:24,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:24,677 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 218 transitions. [2023-11-29 00:33:24,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 00:33:24,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:24,678 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:24,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 00:33:24,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 00:33:24,879 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:24,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:24,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1981869764, now seen corresponding path program 1 times [2023-11-29 00:33:24,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:24,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756747985] [2023-11-29 00:33:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:24,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:24,899 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:24,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354109978] [2023-11-29 00:33:24,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:24,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:24,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:24,902 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:24,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 00:33:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:25,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:33:25,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:25,340 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 27 treesize of output 19 [2023-11-29 00:33:25,343 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 23 treesize of output 15 [2023-11-29 00:33:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:25,353 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:25,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:25,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756747985] [2023-11-29 00:33:25,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:25,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354109978] [2023-11-29 00:33:25,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354109978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:25,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:25,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:33:25,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38760582] [2023-11-29 00:33:25,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:25,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:33:25,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:25,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:33:25,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:33:25,355 INFO L87 Difference]: Start difference. First operand 188 states and 218 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:25,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:25,458 INFO L93 Difference]: Finished difference Result 351 states and 401 transitions. [2023-11-29 00:33:25,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:33:25,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2023-11-29 00:33:25,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:25,461 INFO L225 Difference]: With dead ends: 351 [2023-11-29 00:33:25,461 INFO L226 Difference]: Without dead ends: 196 [2023-11-29 00:33:25,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 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 00:33:25,462 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 20 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:25,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 286 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:33:25,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-29 00:33:25,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 188. [2023-11-29 00:33:25,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 145 states have (on average 1.0551724137931036) internal successors, (153), 147 states have internal predecessors, (153), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 00:33:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 217 transitions. [2023-11-29 00:33:25,486 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 217 transitions. Word has length 116 [2023-11-29 00:33:25,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:25,487 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 217 transitions. [2023-11-29 00:33:25,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:25,487 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 217 transitions. [2023-11-29 00:33:25,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 00:33:25,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:25,488 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:25,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 00:33:25,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 00:33:25,689 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:25,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:25,689 INFO L85 PathProgramCache]: Analyzing trace with hash 109363080, now seen corresponding path program 1 times [2023-11-29 00:33:25,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:25,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31474880] [2023-11-29 00:33:25,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:25,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:25,710 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:25,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388725425] [2023-11-29 00:33:25,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:25,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:25,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:25,711 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:25,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 00:33:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:25,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 00:33:25,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:25,910 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 23 treesize of output 17 [2023-11-29 00:33:25,971 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-29 00:33:25,971 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:33:26,050 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:26,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:26,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31474880] [2023-11-29 00:33:26,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:26,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388725425] [2023-11-29 00:33:26,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388725425] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 00:33:26,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:33:26,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2023-11-29 00:33:26,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432382000] [2023-11-29 00:33:26,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:26,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:33:26,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:26,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:33:26,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:33:26,052 INFO L87 Difference]: Start difference. First operand 188 states and 217 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:26,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:26,201 INFO L93 Difference]: Finished difference Result 363 states and 412 transitions. [2023-11-29 00:33:26,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:33:26,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-11-29 00:33:26,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:26,204 INFO L225 Difference]: With dead ends: 363 [2023-11-29 00:33:26,204 INFO L226 Difference]: Without dead ends: 208 [2023-11-29 00:33:26,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:33:26,205 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 85 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:26,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 643 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:33:26,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-29 00:33:26,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 200. [2023-11-29 00:33:26,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 154 states have (on average 1.051948051948052) internal successors, (162), 156 states have internal predecessors, (162), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 00:33:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 230 transitions. [2023-11-29 00:33:26,224 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 230 transitions. Word has length 117 [2023-11-29 00:33:26,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:26,225 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 230 transitions. [2023-11-29 00:33:26,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:26,225 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 230 transitions. [2023-11-29 00:33:26,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 00:33:26,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:26,226 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:26,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 00:33:26,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 00:33:26,427 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:26,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:26,427 INFO L85 PathProgramCache]: Analyzing trace with hash 367528518, now seen corresponding path program 1 times [2023-11-29 00:33:26,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:26,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387186463] [2023-11-29 00:33:26,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:26,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:26,447 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:26,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [287421951] [2023-11-29 00:33:26,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:26,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:26,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:26,449 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:26,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 00:33:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:26,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 00:33:26,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:26,831 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 1 [2023-11-29 00:33:26,911 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 31 treesize of output 23 [2023-11-29 00:33:26,916 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 27 treesize of output 19 [2023-11-29 00:33:26,919 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 23 treesize of output 15 [2023-11-29 00:33:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:26,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:26,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:26,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387186463] [2023-11-29 00:33:26,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:26,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287421951] [2023-11-29 00:33:26,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287421951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:26,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:26,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:33:26,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061566165] [2023-11-29 00:33:26,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:26,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:33:26,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:26,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:33:26,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:33:26,932 INFO L87 Difference]: Start difference. First operand 200 states and 230 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:27,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:27,085 INFO L93 Difference]: Finished difference Result 372 states and 421 transitions. [2023-11-29 00:33:27,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:33:27,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-11-29 00:33:27,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:27,087 INFO L225 Difference]: With dead ends: 372 [2023-11-29 00:33:27,087 INFO L226 Difference]: Without dead ends: 205 [2023-11-29 00:33:27,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 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 00:33:27,088 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 60 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:27,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 323 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:33:27,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-29 00:33:27,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 190. [2023-11-29 00:33:27,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 144 states have (on average 1.0347222222222223) internal successors, (149), 146 states have internal predecessors, (149), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 00:33:27,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2023-11-29 00:33:27,118 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 117 [2023-11-29 00:33:27,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:27,119 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2023-11-29 00:33:27,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:27,119 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2023-11-29 00:33:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 00:33:27,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:27,120 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:27,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 00:33:27,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:27,321 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:27,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:27,321 INFO L85 PathProgramCache]: Analyzing trace with hash -24650426, now seen corresponding path program 1 times [2023-11-29 00:33:27,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:27,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69704802] [2023-11-29 00:33:27,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:27,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:27,345 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:27,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937708940] [2023-11-29 00:33:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:27,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:27,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:27,347 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:27,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 00:33:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:27,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:33:27,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:27,826 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 1 [2023-11-29 00:33:27,883 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 33 treesize of output 25 [2023-11-29 00:33:27,888 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 00:33:27,891 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 25 treesize of output 17 [2023-11-29 00:33:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:27,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:27,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:27,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69704802] [2023-11-29 00:33:27,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:27,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937708940] [2023-11-29 00:33:27,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937708940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:27,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:27,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:33:27,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680160720] [2023-11-29 00:33:27,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:27,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:33:27,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:27,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:33:27,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:33:27,904 INFO L87 Difference]: Start difference. First operand 190 states and 217 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:28,060 INFO L93 Difference]: Finished difference Result 383 states and 432 transitions. [2023-11-29 00:33:28,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:33:28,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-11-29 00:33:28,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:28,062 INFO L225 Difference]: With dead ends: 383 [2023-11-29 00:33:28,062 INFO L226 Difference]: Without dead ends: 226 [2023-11-29 00:33:28,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 113 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 00:33:28,064 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 57 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:28,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 391 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:33:28,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-29 00:33:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 190. [2023-11-29 00:33:28,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 144 states have (on average 1.0277777777777777) internal successors, (148), 146 states have internal predecessors, (148), 34 states have call successors, (34), 11 states have call predecessors, (34), 11 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 00:33:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 216 transitions. [2023-11-29 00:33:28,096 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 216 transitions. Word has length 117 [2023-11-29 00:33:28,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:28,096 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 216 transitions. [2023-11-29 00:33:28,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:28,097 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 216 transitions. [2023-11-29 00:33:28,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 00:33:28,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:33:28,098 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:33:28,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 00:33:28,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:28,298 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 00:33:28,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:33:28,299 INFO L85 PathProgramCache]: Analyzing trace with hash 233515012, now seen corresponding path program 1 times [2023-11-29 00:33:28,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:33:28,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023094377] [2023-11-29 00:33:28,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:28,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:33:28,324 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:33:28,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264324589] [2023-11-29 00:33:28,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:33:28,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:28,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:33:28,326 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:33:28,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 00:33:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:33:28,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 00:33:28,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:33:28,602 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 00:33:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 00:33:28,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:33:28,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:33:28,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023094377] [2023-11-29 00:33:28,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:33:28,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264324589] [2023-11-29 00:33:28,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264324589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:33:28,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:33:28,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 00:33:28,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207896645] [2023-11-29 00:33:28,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:33:28,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:33:28,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:33:28,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:33:28,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:33:28,653 INFO L87 Difference]: Start difference. First operand 190 states and 216 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:28,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:33:28,789 INFO L93 Difference]: Finished difference Result 344 states and 386 transitions. [2023-11-29 00:33:28,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:33:28,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-11-29 00:33:28,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:33:28,790 INFO L225 Difference]: With dead ends: 344 [2023-11-29 00:33:28,790 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 00:33:28,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:33:28,792 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 60 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:33:28,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 536 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:33:28,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 00:33:28,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 00:33:28,793 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 00:33:28,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 00:33:28,793 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2023-11-29 00:33:28,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:33:28,793 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 00:33:28,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-29 00:33:28,793 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 00:33:28,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 00:33:28,796 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 00:33:28,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 00:33:28,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:33:28,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 00:33:32,017 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-29 00:33:32,017 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-29 00:33:32,017 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-29 00:33:32,017 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-29 00:33:32,017 INFO L895 garLoopResultBuilder]: At program point L93(line 93) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-11-29 00:33:32,017 INFO L899 garLoopResultBuilder]: For program point L93-1(line 93) no Hoare annotation was computed. [2023-11-29 00:33:32,017 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 68) no Hoare annotation was computed. [2023-11-29 00:33:32,017 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 68) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (let ((.cse12 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse10 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (= |~#var_1_14~0.offset| 0)) (.cse1 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse2 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse3 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse10)) (.cse4 (= |~#var_1_4~0.offset| 0)) (.cse5 (= |ULTIMATE.start_updateVariables_#t~mem43#1| (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0))) (.cse6 (= ~var_1_14_Pointer~0.offset 0)) (.cse7 (<= 1 (mod .cse12 256))) (.cse11 (= ~var_1_4_Pointer~0.offset 0)) (.cse8 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse9 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (<= (mod (+ 4294967295 .cse8) 4294967296) (mod (* .cse9 .cse10) 4294967296)) .cse11) (and (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse10) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= .cse12 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse11 (= .cse8 .cse9) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset)))))) [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 77) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L895 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 65) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 74) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L62-2(line 62) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L62-3(line 62) no Hoare annotation was computed. [2023-11-29 00:33:32,018 INFO L899 garLoopResultBuilder]: For program point L62-5(line 62) no Hoare annotation was computed. [2023-11-29 00:33:32,019 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-11-29 00:33:32,019 INFO L899 garLoopResultBuilder]: For program point L87-1(line 87) no Hoare annotation was computed. [2023-11-29 00:33:32,019 INFO L895 garLoopResultBuilder]: At program point L112-2(lines 112 118) the Hoare annotation is: (let ((.cse21 (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0))) (let ((.cse17 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse19 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse20 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse15 (select (select |#memory_int#2| ~var_1_3_Pointer~0.base) ~var_1_3_Pointer~0.offset)) (.cse18 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset)) (.cse14 (mod .cse21 4294967296))) (let ((.cse0 (<= .cse14 2147483647)) (.cse1 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse18)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (mod (+ .cse15 (* .cse21 4294967295)) 4294967296) (mod (select (select |#memory_int#1| ~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) 4294967296))) (.cse6 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse18)) (.cse7 (= |~#var_1_4~0.offset| 0)) (.cse8 (= ~var_1_14_Pointer~0.offset 0)) (.cse9 (<= 1 (mod .cse20 256))) (.cse10 (= .cse20 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0))) (.cse16 (<= (mod (+ 4294967295 .cse17) 4294967296) (mod (* .cse19 .cse18) 4294967296))) (.cse11 (= ~var_1_4_Pointer~0.offset 0)) (.cse12 (= .cse17 .cse19)) (.cse13 (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) .cse13)) (and .cse0 (<= (+ .cse14 1) (mod (* .cse15 ~last_1_var_1_10~0) 4294967296)) .cse2 .cse3 .cse4 .cse6 .cse7 .cse8 .cse9 .cse16 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse16 .cse11 .cse12 (= (+ .cse17 .cse13) .cse18)))))) [2023-11-29 00:33:32,019 INFO L899 garLoopResultBuilder]: For program point L112-3(lines 112 118) no Hoare annotation was computed. [2023-11-29 00:33:32,019 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 00:33:32,019 INFO L895 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-11-29 00:33:32,019 INFO L899 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2023-11-29 00:33:32,019 INFO L895 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-11-29 00:33:32,019 INFO L899 garLoopResultBuilder]: For program point L88-1(line 88) no Hoare annotation was computed. [2023-11-29 00:33:32,019 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 57) no Hoare annotation was computed. [2023-11-29 00:33:32,019 INFO L899 garLoopResultBuilder]: For program point L55-2(lines 55 57) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L895 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L56-2(line 56) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L895 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L106-1(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L106-3(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L106-5(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L106-6(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L106-7(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L106-8(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L106-9(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,020 INFO L899 garLoopResultBuilder]: For program point L106-11(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L106-12(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L106-14(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L895 garLoopResultBuilder]: At program point L90(line 90) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12)) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L106-16(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L90-1(line 90) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L106-18(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L106-20(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L106-21(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L106-22(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L106-23(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset))) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-11-29 00:33:32,021 INFO L899 garLoopResultBuilder]: For program point L106-25(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L899 garLoopResultBuilder]: For program point L106-27(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L899 garLoopResultBuilder]: For program point L106-29(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L899 garLoopResultBuilder]: For program point L106-30(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L899 garLoopResultBuilder]: For program point L106-32(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L899 garLoopResultBuilder]: For program point L106-33(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L899 garLoopResultBuilder]: For program point L106-35(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L899 garLoopResultBuilder]: For program point L106-36(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L899 garLoopResultBuilder]: For program point L106-38(line 106) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L895 garLoopResultBuilder]: At program point L99(line 99) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (= |ULTIMATE.start_updateVariables_#t~mem57#1| (select (select |#memory_int#12| |~#var_1_14~0.base|) 0)) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-11-29 00:33:32,022 INFO L899 garLoopResultBuilder]: For program point L99-1(line 99) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 00:33:32,022 INFO L895 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: (let ((.cse9 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse1 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647)) (.cse2 (= |~#var_1_14~0.offset| 0)) (.cse3 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse4 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse5 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse1)) (.cse6 (= |~#var_1_4~0.offset| 0)) (.cse7 (= ~var_1_14_Pointer~0.offset 0)) (.cse8 (<= 1 (mod .cse9 256))) (.cse11 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse12 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset)) (.cse10 (= ~var_1_4_Pointer~0.offset 0))) (or (and .cse0 (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= .cse9 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse11 .cse12)) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (<= (mod (+ 4294967295 .cse11) 4294967296) (mod (* .cse12 .cse1) 4294967296)) .cse10)))) [2023-11-29 00:33:32,023 INFO L899 garLoopResultBuilder]: For program point L91-1(line 91) no Hoare annotation was computed. [2023-11-29 00:33:32,023 INFO L895 garLoopResultBuilder]: At program point L100(line 100) the Hoare annotation is: (and (<= (mod (select (select |#memory_int#3| ~var_1_4_Pointer~0.base) 0) 4294967296) 2147483647) (= |~#var_1_14~0.offset| 0) (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base) (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base) (= |~#var_1_4~0.offset| 0) (= ~var_1_14_Pointer~0.offset 0) (<= 1 (mod (select (select |#memory_int#12| |~#var_1_14~0.base|) 0) 256)) (<= 1 (mod (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset) 256)) (= ~var_1_4_Pointer~0.offset 0)) [2023-11-29 00:33:32,023 INFO L899 garLoopResultBuilder]: For program point L100-1(line 100) no Hoare annotation was computed. [2023-11-29 00:33:32,023 INFO L895 garLoopResultBuilder]: At program point L84(line 84) the Hoare annotation is: (let ((.cse11 (select (select |#memory_int#11| ~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)) (.cse9 (select (select |#memory_int#7| ~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (let ((.cse0 (= |~#var_1_14~0.offset| 0)) (.cse1 (= |~#var_1_14~0.base| ~var_1_14_Pointer~0.base)) (.cse2 (= |~#var_1_4~0.base| ~var_1_4_Pointer~0.base)) (.cse3 (= (select (select |#memory_int#10| ~var_1_12_Pointer~0.base) ~var_1_12_Pointer~0.offset) .cse9)) (.cse4 (= |~#var_1_4~0.offset| 0)) (.cse5 (= ~var_1_14_Pointer~0.offset 0)) (.cse6 (<= 1 (mod .cse11 256))) (.cse10 (= ~var_1_4_Pointer~0.offset 0)) (.cse7 (select (select |#memory_int#8| ~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset)) (.cse8 (select (select |#memory_int#13| ~var_1_15_Pointer~0.base) ~var_1_15_Pointer~0.offset))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (<= (mod (+ 4294967295 .cse7) 4294967296) (mod (* .cse8 .cse9) 4294967296)) .cse10) (and (= (select (select |#memory_int#4| ~var_1_5_Pointer~0.base) ~var_1_5_Pointer~0.offset) .cse9) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= .cse11 (select (select |#memory_int#12| ~var_1_14_Pointer~0.base) 0)) .cse10 (= .cse7 .cse8) (= (select (select |#memory_int#6| ~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset) (select (select |#memory_int#9| ~var_1_10_Pointer~0.base) ~var_1_10_Pointer~0.offset)))))) [2023-11-29 00:33:32,023 INFO L899 garLoopResultBuilder]: For program point L84-1(line 84) no Hoare annotation was computed. [2023-11-29 00:33:32,023 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 78) no Hoare annotation was computed. [2023-11-29 00:33:32,026 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:33:32,028 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:33:32,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-11-29 00:33:32,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-11-29 00:33:32,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_14_Pointer~0!base][0] could not be translated [2023-11-29 00:33:32,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_7_Pointer~0!base][~var_1_7_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-11-29 00:33:32,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-11-29 00:33:32,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-11-29 00:33:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated [2023-11-29 00:33:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_14_Pointer~0!base][0] could not be translated [2023-11-29 00:33:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated [2023-11-29 00:33:32,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:33:32 BoogieIcfgContainer [2023-11-29 00:33:32,050 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:33:32,051 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:33:32,051 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:33:32,051 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:33:32,051 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:33:10" (3/4) ... [2023-11-29 00:33:32,053 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 00:33:32,056 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 00:33:32,065 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-29 00:33:32,066 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 00:33:32,067 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 00:33:32,068 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 00:33:32,209 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 00:33:32,210 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 00:33:32,210 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:33:32,210 INFO L158 Benchmark]: Toolchain (without parser) took 22761.72ms. Allocated memory was 132.1MB in the beginning and 257.9MB in the end (delta: 125.8MB). Free memory was 100.3MB in the beginning and 186.5MB in the end (delta: -86.2MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2023-11-29 00:33:32,211 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:33:32,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.63ms. Allocated memory is still 132.1MB. Free memory was 100.3MB in the beginning and 86.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 00:33:32,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.30ms. Allocated memory is still 132.1MB. Free memory was 86.7MB in the beginning and 83.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:33:32,212 INFO L158 Benchmark]: Boogie Preprocessor took 68.36ms. Allocated memory is still 132.1MB. Free memory was 83.7MB in the beginning and 80.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:33:32,212 INFO L158 Benchmark]: RCFGBuilder took 654.20ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 80.0MB in the beginning and 147.3MB in the end (delta: -67.3MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2023-11-29 00:33:32,213 INFO L158 Benchmark]: TraceAbstraction took 21564.78ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 146.3MB in the beginning and 195.9MB in the end (delta: -49.6MB). Peak memory consumption was 154.0MB. Max. memory is 16.1GB. [2023-11-29 00:33:32,213 INFO L158 Benchmark]: Witness Printer took 159.33ms. Allocated memory is still 257.9MB. Free memory was 195.9MB in the beginning and 186.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 00:33:32,215 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.63ms. Allocated memory is still 132.1MB. Free memory was 100.3MB in the beginning and 86.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.30ms. Allocated memory is still 132.1MB. Free memory was 86.7MB in the beginning and 83.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.36ms. Allocated memory is still 132.1MB. Free memory was 83.7MB in the beginning and 80.0MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 654.20ms. Allocated memory was 132.1MB in the beginning and 178.3MB in the end (delta: 46.1MB). Free memory was 80.0MB in the beginning and 147.3MB in the end (delta: -67.3MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * TraceAbstraction took 21564.78ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 146.3MB in the beginning and 195.9MB in the end (delta: -49.6MB). Peak memory consumption was 154.0MB. Max. memory is 16.1GB. * Witness Printer took 159.33ms. Allocated memory is still 257.9MB. Free memory was 195.9MB in the beginning and 186.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_14_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#6[~var_1_7_Pointer~0!base][~var_1_7_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~var_1_5_Pointer~0!base][~var_1_5_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~var_1_3_Pointer~0!base][~var_1_3_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~var_1_4_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~var_1_1_Pointer~0!base][~var_1_1_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#10[~var_1_12_Pointer~0!base][~var_1_12_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#11[~var_1_13_Pointer~0!base][~var_1_13_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#12[~var_1_14_Pointer~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#13[~var_1_15_Pointer~0!base][~var_1_15_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#8[~var_1_9_Pointer~0!base][~var_1_9_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#9[~var_1_10_Pointer~0!base][~var_1_10_Pointer~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#7[~var_1_8_Pointer~0!base][~var_1_8_Pointer~0!offset] could not be translated * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.5s, OverallIterations: 21, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1745 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1745 mSDsluCounter, 8090 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5918 mSDsCounter, 192 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1899 IncrementalHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 192 mSolverCounterUnsat, 2172 mSDtfsCounter, 1899 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2953 GetRequests, 2777 SyntacticMatches, 2 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=18, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 360 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 409 PreInvPairs, 446 NumberOfFragments, 1857 HoareAnnotationTreeSize, 409 FomulaSimplifications, 4858 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 16 FomulaSimplificationsInter, 9450 FormulaSimplificationTreeSizeReductionInter, 2.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 2453 NumberOfCodeBlocks, 2453 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 2884 ConstructedInterpolants, 88 QuantifiedInterpolants, 10223 SizeOfPredicates, 169 NumberOfNonLiveVariables, 10502 ConjunctsInSsa, 275 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 8959/9464 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-29 00:33:32,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7338810-e4a4-452d-9aee-5a04580869b9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE