./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-74.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/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_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-74.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/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_838f2665-3932-48ee-bf15-0506ea3aeddb/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 12c4232328ebed2959d46283ec7c985dd6c5525d615e314238386424a59fd52d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:24:25,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:24:25,620 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 02:24:25,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:24:25,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:24:25,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:24:25,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:24:25,649 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:24:25,650 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:24:25,650 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:24:25,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:24:25,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:24:25,652 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:24:25,653 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:24:25,653 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:24:25,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:24:25,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:24:25,655 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:24:25,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:24:25,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:24:25,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:24:25,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:24:25,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:24:25,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:24:25,658 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:24:25,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:24:25,659 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:24:25,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:24:25,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:24:25,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:24:25,660 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:24:25,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:24:25,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:24:25,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:24:25,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:24:25,662 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:24:25,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:24:25,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:24:25,664 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:24:25,664 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:24:25,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:24:25,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:24:25,665 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_838f2665-3932-48ee-bf15-0506ea3aeddb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12c4232328ebed2959d46283ec7c985dd6c5525d615e314238386424a59fd52d [2023-11-29 02:24:25,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:24:25,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:24:25,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:24:25,912 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:24:25,912 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:24:25,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-74.i [2023-11-29 02:24:28,765 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:24:29,030 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:24:29,031 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-74.i [2023-11-29 02:24:29,047 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/data/0c83de545/08739b037bfd4fe290fe7702ca9c4c31/FLAGaa36e4274 [2023-11-29 02:24:29,063 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/data/0c83de545/08739b037bfd4fe290fe7702ca9c4c31 [2023-11-29 02:24:29,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:24:29,067 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:24:29,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:24:29,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:24:29,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:24:29,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:29,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642086e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29, skipping insertion in model container [2023-11-29 02:24:29,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:29,139 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:24:29,304 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_838f2665-3932-48ee-bf15-0506ea3aeddb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-74.i[916,929] [2023-11-29 02:24:29,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:24:29,562 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:24:29,576 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_838f2665-3932-48ee-bf15-0506ea3aeddb/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-74.i[916,929] [2023-11-29 02:24:29,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:24:29,740 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:24:29,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29 WrapperNode [2023-11-29 02:24:29,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:24:29,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:24:29,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:24:29,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:24:29,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:29,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:29,897 INFO L138 Inliner]: procedures = 26, calls = 86, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 715 [2023-11-29 02:24:29,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:24:29,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:24:29,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:24:29,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:24:29,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:29,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:29,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:30,004 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 02:24:30,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:30,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:30,029 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:30,036 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:30,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:30,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:30,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:24:30,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:24:30,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:24:30,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:24:30,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (1/1) ... [2023-11-29 02:24:30,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:24:30,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:30,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:24:30,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:24:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:24:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 02:24:30,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 02:24:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:24:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:24:30,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:24:30,307 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:24:30,310 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:24:31,436 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:24:31,492 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:24:31,492 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:24:31,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:24:31 BoogieIcfgContainer [2023-11-29 02:24:31,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:24:31,496 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:24:31,496 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:24:31,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:24:31,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:24:29" (1/3) ... [2023-11-29 02:24:31,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5fab9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:24:31, skipping insertion in model container [2023-11-29 02:24:31,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:24:29" (2/3) ... [2023-11-29 02:24:31,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5fab9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:24:31, skipping insertion in model container [2023-11-29 02:24:31,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:24:31" (3/3) ... [2023-11-29 02:24:31,502 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-74.i [2023-11-29 02:24:31,518 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:24:31,518 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:24:31,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:24:31,575 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;@71ea8db9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:24:31,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:24:31,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 201 states have (on average 1.5820895522388059) internal successors, (318), 202 states have internal predecessors, (318), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-29 02:24:31,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2023-11-29 02:24:31,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:31,610 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:31,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:31,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:31,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1010941931, now seen corresponding path program 1 times [2023-11-29 02:24:31,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:31,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068924178] [2023-11-29 02:24:31,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:31,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:31,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:31,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068924178] [2023-11-29 02:24:31,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 02:24:31,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256579336] [2023-11-29 02:24:31,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:31,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:31,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:32,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:32,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:24:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:32,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 02:24:32,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 10368 trivial. 0 not checked. [2023-11-29 02:24:32,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:32,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256579336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:32,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:32,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:24:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687379980] [2023-11-29 02:24:32,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:32,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:24:32,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:32,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:24:32,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:24:32,585 INFO L87 Difference]: Start difference. First operand has 277 states, 201 states have (on average 1.5820895522388059) internal successors, (318), 202 states have internal predecessors, (318), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) [2023-11-29 02:24:32,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:32,661 INFO L93 Difference]: Finished difference Result 551 states and 999 transitions. [2023-11-29 02:24:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:24:32,665 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) Word has length 492 [2023-11-29 02:24:32,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:32,676 INFO L225 Difference]: With dead ends: 551 [2023-11-29 02:24:32,677 INFO L226 Difference]: Without dead ends: 275 [2023-11-29 02:24:32,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 491 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 02:24:32,687 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:32,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 454 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:24:32,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-11-29 02:24:32,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2023-11-29 02:24:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 200 states have (on average 1.555) internal successors, (311), 200 states have internal predecessors, (311), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-29 02:24:32,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 457 transitions. [2023-11-29 02:24:32,783 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 457 transitions. Word has length 492 [2023-11-29 02:24:32,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:32,784 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 457 transitions. [2023-11-29 02:24:32,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 2 states have call successors, (73) [2023-11-29 02:24:32,785 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 457 transitions. [2023-11-29 02:24:32,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2023-11-29 02:24:32,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:32,799 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:32,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:24:33,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:33,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:33,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:33,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1486715741, now seen corresponding path program 1 times [2023-11-29 02:24:33,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:33,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564053000] [2023-11-29 02:24:33,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:33,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:33,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:33,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [158854848] [2023-11-29 02:24:33,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:33,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:33,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:33,131 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:33,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:24:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:33,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:24:33,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:33,732 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-11-29 02:24:33,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:33,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:33,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564053000] [2023-11-29 02:24:33,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:33,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158854848] [2023-11-29 02:24:33,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158854848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:33,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:33,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:24:33,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032802361] [2023-11-29 02:24:33,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:33,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:24:33,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:33,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:24:33,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:24:33,739 INFO L87 Difference]: Start difference. First operand 275 states and 457 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:33,850 INFO L93 Difference]: Finished difference Result 820 states and 1363 transitions. [2023-11-29 02:24:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:24:33,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 492 [2023-11-29 02:24:33,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:33,860 INFO L225 Difference]: With dead ends: 820 [2023-11-29 02:24:33,860 INFO L226 Difference]: Without dead ends: 546 [2023-11-29 02:24:33,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:24:33,863 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 440 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:33,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 885 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:24:33,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-11-29 02:24:33,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 330. [2023-11-29 02:24:33,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 255 states have (on average 1.584313725490196) internal successors, (404), 255 states have internal predecessors, (404), 73 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-29 02:24:33,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 550 transitions. [2023-11-29 02:24:33,915 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 550 transitions. Word has length 492 [2023-11-29 02:24:33,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:33,919 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 550 transitions. [2023-11-29 02:24:33,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:33,919 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 550 transitions. [2023-11-29 02:24:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2023-11-29 02:24:33,929 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:33,930 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:33,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:24:34,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:34,131 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:34,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:34,132 INFO L85 PathProgramCache]: Analyzing trace with hash 439213149, now seen corresponding path program 1 times [2023-11-29 02:24:34,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:34,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567274281] [2023-11-29 02:24:34,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:34,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:34,245 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:34,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [844692330] [2023-11-29 02:24:34,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:34,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:34,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:34,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:34,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:24:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:34,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:24:34,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:34,762 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-11-29 02:24:34,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:34,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:34,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567274281] [2023-11-29 02:24:34,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:34,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844692330] [2023-11-29 02:24:34,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844692330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:34,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:34,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:24:34,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284310219] [2023-11-29 02:24:34,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:34,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:24:34,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:34,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:24:34,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:24:34,766 INFO L87 Difference]: Start difference. First operand 330 states and 550 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:34,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:34,899 INFO L93 Difference]: Finished difference Result 896 states and 1491 transitions. [2023-11-29 02:24:34,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:24:34,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 492 [2023-11-29 02:24:34,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:34,906 INFO L225 Difference]: With dead ends: 896 [2023-11-29 02:24:34,906 INFO L226 Difference]: Without dead ends: 567 [2023-11-29 02:24:34,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:24:34,908 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 303 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:34,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 1145 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:34,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2023-11-29 02:24:34,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 564. [2023-11-29 02:24:34,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 452 states have (on average 1.586283185840708) internal successors, (717), 453 states have internal predecessors, (717), 109 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2023-11-29 02:24:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 935 transitions. [2023-11-29 02:24:34,977 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 935 transitions. Word has length 492 [2023-11-29 02:24:34,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:34,979 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 935 transitions. [2023-11-29 02:24:34,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:34,980 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 935 transitions. [2023-11-29 02:24:34,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2023-11-29 02:24:34,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:34,993 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:35,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:24:35,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:35,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:35,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:35,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1947296357, now seen corresponding path program 1 times [2023-11-29 02:24:35,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:35,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966260001] [2023-11-29 02:24:35,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:35,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:35,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:35,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292400573] [2023-11-29 02:24:35,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:35,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:35,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:35,286 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:35,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:24:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:35,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:24:35,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:35,768 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-11-29 02:24:35,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:35,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:35,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966260001] [2023-11-29 02:24:35,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:35,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292400573] [2023-11-29 02:24:35,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292400573] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:35,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:35,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:24:35,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145405174] [2023-11-29 02:24:35,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:35,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:24:35,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:35,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:24:35,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:24:35,773 INFO L87 Difference]: Start difference. First operand 564 states and 935 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:35,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:35,877 INFO L93 Difference]: Finished difference Result 1579 states and 2621 transitions. [2023-11-29 02:24:35,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:24:35,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 492 [2023-11-29 02:24:35,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:35,885 INFO L225 Difference]: With dead ends: 1579 [2023-11-29 02:24:35,885 INFO L226 Difference]: Without dead ends: 1016 [2023-11-29 02:24:35,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:24:35,888 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 295 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:35,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1060 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2023-11-29 02:24:35,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1012. [2023-11-29 02:24:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 848 states have (on average 1.599056603773585) internal successors, (1356), 851 states have internal predecessors, (1356), 159 states have call successors, (159), 4 states have call predecessors, (159), 4 states have return successors, (159), 156 states have call predecessors, (159), 159 states have call successors, (159) [2023-11-29 02:24:35,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1674 transitions. [2023-11-29 02:24:35,941 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1674 transitions. Word has length 492 [2023-11-29 02:24:35,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:35,943 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1674 transitions. [2023-11-29 02:24:35,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:35,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1674 transitions. [2023-11-29 02:24:35,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2023-11-29 02:24:35,965 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:35,965 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:35,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:24:36,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:36,167 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:36,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:36,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1615703513, now seen corresponding path program 1 times [2023-11-29 02:24:36,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:36,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879832088] [2023-11-29 02:24:36,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:36,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:36,249 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:36,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1634689104] [2023-11-29 02:24:36,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:36,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:36,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:36,251 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:36,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:24:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:36,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:24:36,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:36,798 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-11-29 02:24:36,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:36,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:36,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879832088] [2023-11-29 02:24:36,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:36,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634689104] [2023-11-29 02:24:36,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634689104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:36,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:36,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:24:36,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112718726] [2023-11-29 02:24:36,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:36,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:24:36,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:36,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:24:36,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:24:36,803 INFO L87 Difference]: Start difference. First operand 1012 states and 1674 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:36,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:36,932 INFO L93 Difference]: Finished difference Result 2035 states and 3356 transitions. [2023-11-29 02:24:36,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:24:36,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 492 [2023-11-29 02:24:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:36,940 INFO L225 Difference]: With dead ends: 2035 [2023-11-29 02:24:36,940 INFO L226 Difference]: Without dead ends: 1024 [2023-11-29 02:24:36,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:24:36,943 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 235 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:36,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 923 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:24:36,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2023-11-29 02:24:36,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 876. [2023-11-29 02:24:36,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 762 states have (on average 1.6246719160104988) internal successors, (1238), 763 states have internal predecessors, (1238), 109 states have call successors, (109), 4 states have call predecessors, (109), 4 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2023-11-29 02:24:36,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1456 transitions. [2023-11-29 02:24:36,980 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1456 transitions. Word has length 492 [2023-11-29 02:24:36,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:36,981 INFO L495 AbstractCegarLoop]: Abstraction has 876 states and 1456 transitions. [2023-11-29 02:24:36,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:36,981 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1456 transitions. [2023-11-29 02:24:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2023-11-29 02:24:36,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:36,986 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:36,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 02:24:37,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:37,187 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:37,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:37,187 INFO L85 PathProgramCache]: Analyzing trace with hash 335839835, now seen corresponding path program 1 times [2023-11-29 02:24:37,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:37,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420656515] [2023-11-29 02:24:37,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:37,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:37,275 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:37,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706879311] [2023-11-29 02:24:37,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:37,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:37,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:37,277 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:37,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:24:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:37,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:24:37,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:39,028 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-11-29 02:24:39,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:39,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:39,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420656515] [2023-11-29 02:24:39,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:39,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706879311] [2023-11-29 02:24:39,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706879311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:39,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:39,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:24:39,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691538032] [2023-11-29 02:24:39,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:39,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:24:39,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:39,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:24:39,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:24:39,032 INFO L87 Difference]: Start difference. First operand 876 states and 1456 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:39,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:39,452 INFO L93 Difference]: Finished difference Result 2554 states and 4252 transitions. [2023-11-29 02:24:39,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:24:39,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 492 [2023-11-29 02:24:39,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:39,465 INFO L225 Difference]: With dead ends: 2554 [2023-11-29 02:24:39,465 INFO L226 Difference]: Without dead ends: 1679 [2023-11-29 02:24:39,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 489 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 02:24:39,468 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 466 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:39,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1310 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:24:39,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2023-11-29 02:24:39,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1445. [2023-11-29 02:24:39,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1256 states have (on average 1.624203821656051) internal successors, (2040), 1257 states have internal predecessors, (2040), 182 states have call successors, (182), 6 states have call predecessors, (182), 6 states have return successors, (182), 181 states have call predecessors, (182), 182 states have call successors, (182) [2023-11-29 02:24:39,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2404 transitions. [2023-11-29 02:24:39,578 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2404 transitions. Word has length 492 [2023-11-29 02:24:39,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:39,580 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 2404 transitions. [2023-11-29 02:24:39,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:39,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2404 transitions. [2023-11-29 02:24:39,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2023-11-29 02:24:39,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:39,590 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:39,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:24:39,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 02:24:39,791 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:39,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:39,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2069944285, now seen corresponding path program 1 times [2023-11-29 02:24:39,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:39,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338626246] [2023-11-29 02:24:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:39,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:39,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:39,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1503259316] [2023-11-29 02:24:39,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:39,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:39,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:39,881 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:39,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:24:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:40,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:24:40,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-11-29 02:24:40,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:40,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:40,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338626246] [2023-11-29 02:24:40,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:40,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503259316] [2023-11-29 02:24:40,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503259316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:40,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:40,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:24:40,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483923996] [2023-11-29 02:24:40,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:40,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:24:40,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:24:40,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:24:40,281 INFO L87 Difference]: Start difference. First operand 1445 states and 2404 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:41,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:41,105 INFO L93 Difference]: Finished difference Result 3943 states and 6564 transitions. [2023-11-29 02:24:41,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:24:41,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 492 [2023-11-29 02:24:41,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:41,119 INFO L225 Difference]: With dead ends: 3943 [2023-11-29 02:24:41,119 INFO L226 Difference]: Without dead ends: 2772 [2023-11-29 02:24:41,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 490 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 02:24:41,122 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 1171 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1171 SdHoareTripleChecker+Valid, 1878 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:41,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1171 Valid, 1878 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:24:41,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2772 states. [2023-11-29 02:24:41,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2772 to 1990. [2023-11-29 02:24:41,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1771 states have (on average 1.6109542631281761) internal successors, (2853), 1773 states have internal predecessors, (2853), 209 states have call successors, (209), 9 states have call predecessors, (209), 9 states have return successors, (209), 207 states have call predecessors, (209), 209 states have call successors, (209) [2023-11-29 02:24:41,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 3271 transitions. [2023-11-29 02:24:41,216 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 3271 transitions. Word has length 492 [2023-11-29 02:24:41,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:41,216 INFO L495 AbstractCegarLoop]: Abstraction has 1990 states and 3271 transitions. [2023-11-29 02:24:41,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:41,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 3271 transitions. [2023-11-29 02:24:41,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2023-11-29 02:24:41,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:41,222 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:41,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 02:24:41,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 02:24:41,423 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:41,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:41,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1476031013, now seen corresponding path program 1 times [2023-11-29 02:24:41,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:41,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66275693] [2023-11-29 02:24:41,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:41,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:41,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:41,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1402927289] [2023-11-29 02:24:41,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:41,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:41,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:41,494 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:41,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:24:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:41,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:24:41,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:42,261 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 4626 proven. 147 refuted. 0 times theorem prover too weak. 5739 trivial. 0 not checked. [2023-11-29 02:24:42,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:24:42,675 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 69 proven. 147 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2023-11-29 02:24:42,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:42,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66275693] [2023-11-29 02:24:42,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:42,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402927289] [2023-11-29 02:24:42,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402927289] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:24:42,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:24:42,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 02:24:42,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101201812] [2023-11-29 02:24:42,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:24:42,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:24:42,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:42,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:24:42,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:42,680 INFO L87 Difference]: Start difference. First operand 1990 states and 3271 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 2 states have call successors, (122), 2 states have call predecessors, (122), 4 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2023-11-29 02:24:43,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:43,238 INFO L93 Difference]: Finished difference Result 3883 states and 6367 transitions. [2023-11-29 02:24:43,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:24:43,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 2 states have call successors, (122), 2 states have call predecessors, (122), 4 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) Word has length 492 [2023-11-29 02:24:43,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:43,251 INFO L225 Difference]: With dead ends: 3883 [2023-11-29 02:24:43,251 INFO L226 Difference]: Without dead ends: 2024 [2023-11-29 02:24:43,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 976 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:24:43,255 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 536 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:43,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 1003 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:24:43,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2023-11-29 02:24:43,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 2004. [2023-11-29 02:24:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1781 states have (on average 1.59685569904548) internal successors, (2844), 1783 states have internal predecessors, (2844), 209 states have call successors, (209), 13 states have call predecessors, (209), 13 states have return successors, (209), 207 states have call predecessors, (209), 209 states have call successors, (209) [2023-11-29 02:24:43,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 3262 transitions. [2023-11-29 02:24:43,341 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 3262 transitions. Word has length 492 [2023-11-29 02:24:43,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:43,341 INFO L495 AbstractCegarLoop]: Abstraction has 2004 states and 3262 transitions. [2023-11-29 02:24:43,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 2 states have call successors, (122), 2 states have call predecessors, (122), 4 states have return successors, (123), 2 states have call predecessors, (123), 2 states have call successors, (123) [2023-11-29 02:24:43,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 3262 transitions. [2023-11-29 02:24:43,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2023-11-29 02:24:43,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:43,348 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:43,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 02:24:43,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 02:24:43,551 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:43,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:43,552 INFO L85 PathProgramCache]: Analyzing trace with hash 857361625, now seen corresponding path program 1 times [2023-11-29 02:24:43,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:43,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71643098] [2023-11-29 02:24:43,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:43,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:43,622 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:43,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1302638090] [2023-11-29 02:24:43,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:43,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:43,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:43,624 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:43,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:24:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:44,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:24:44,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:44,245 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 4206 proven. 57 refuted. 0 times theorem prover too weak. 6249 trivial. 0 not checked. [2023-11-29 02:24:44,245 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:24:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 159 proven. 57 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2023-11-29 02:24:44,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:44,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71643098] [2023-11-29 02:24:44,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:44,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302638090] [2023-11-29 02:24:44,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302638090] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:24:44,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:24:44,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 02:24:44,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36202013] [2023-11-29 02:24:44,497 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:24:44,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:24:44,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:44,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:24:44,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:24:44,500 INFO L87 Difference]: Start difference. First operand 2004 states and 3262 transitions. Second operand has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 3 states have call successors, (92), 2 states have call predecessors, (92), 4 states have return successors, (93), 3 states have call predecessors, (93), 3 states have call successors, (93) [2023-11-29 02:24:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:44,962 INFO L93 Difference]: Finished difference Result 3884 states and 6316 transitions. [2023-11-29 02:24:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:24:44,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 3 states have call successors, (92), 2 states have call predecessors, (92), 4 states have return successors, (93), 3 states have call predecessors, (93), 3 states have call successors, (93) Word has length 492 [2023-11-29 02:24:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:44,976 INFO L225 Difference]: With dead ends: 3884 [2023-11-29 02:24:44,976 INFO L226 Difference]: Without dead ends: 2030 [2023-11-29 02:24:44,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 976 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:24:44,981 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 344 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:44,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 972 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:24:44,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2023-11-29 02:24:45,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 2012. [2023-11-29 02:24:45,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2012 states, 1787 states have (on average 1.5926133184107443) internal successors, (2846), 1789 states have internal predecessors, (2846), 209 states have call successors, (209), 15 states have call predecessors, (209), 15 states have return successors, (209), 207 states have call predecessors, (209), 209 states have call successors, (209) [2023-11-29 02:24:45,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 3264 transitions. [2023-11-29 02:24:45,100 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 3264 transitions. Word has length 492 [2023-11-29 02:24:45,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:45,100 INFO L495 AbstractCegarLoop]: Abstraction has 2012 states and 3264 transitions. [2023-11-29 02:24:45,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 8 states have internal predecessors, (158), 3 states have call successors, (92), 2 states have call predecessors, (92), 4 states have return successors, (93), 3 states have call predecessors, (93), 3 states have call successors, (93) [2023-11-29 02:24:45,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 3264 transitions. [2023-11-29 02:24:45,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-11-29 02:24:45,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:45,109 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:45,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 02:24:45,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:45,311 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:45,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash -913064257, now seen corresponding path program 1 times [2023-11-29 02:24:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:45,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942147675] [2023-11-29 02:24:45,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:45,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:45,419 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:45,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106058645] [2023-11-29 02:24:45,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:45,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:45,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:45,423 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:45,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:24:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:45,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:24:45,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:46,243 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-11-29 02:24:46,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:46,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:46,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942147675] [2023-11-29 02:24:46,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:46,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106058645] [2023-11-29 02:24:46,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106058645] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:46,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:46,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:24:46,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224577762] [2023-11-29 02:24:46,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:46,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:24:46,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:46,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:24:46,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:24:46,247 INFO L87 Difference]: Start difference. First operand 2012 states and 3264 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:48,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:48,316 INFO L93 Difference]: Finished difference Result 4732 states and 7679 transitions. [2023-11-29 02:24:48,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:24:48,317 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 493 [2023-11-29 02:24:48,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:48,333 INFO L225 Difference]: With dead ends: 4732 [2023-11-29 02:24:48,333 INFO L226 Difference]: Without dead ends: 2904 [2023-11-29 02:24:48,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:24:48,337 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 4610 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4610 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:48,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4610 Valid, 2246 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [884 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 02:24:48,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2904 states. [2023-11-29 02:24:48,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2904 to 1679. [2023-11-29 02:24:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1484 states have (on average 1.5700808625336926) internal successors, (2330), 1485 states have internal predecessors, (2330), 182 states have call successors, (182), 12 states have call predecessors, (182), 12 states have return successors, (182), 181 states have call predecessors, (182), 182 states have call successors, (182) [2023-11-29 02:24:48,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2694 transitions. [2023-11-29 02:24:48,426 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2694 transitions. Word has length 493 [2023-11-29 02:24:48,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:48,427 INFO L495 AbstractCegarLoop]: Abstraction has 1679 states and 2694 transitions. [2023-11-29 02:24:48,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:48,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2694 transitions. [2023-11-29 02:24:48,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-11-29 02:24:48,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:48,432 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:48,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 02:24:48,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 02:24:48,633 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:48,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:48,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1730712707, now seen corresponding path program 1 times [2023-11-29 02:24:48,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:48,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265912854] [2023-11-29 02:24:48,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:48,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:48,707 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:48,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1358530009] [2023-11-29 02:24:48,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:48,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:48,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:48,708 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:48,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:24:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:49,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 02:24:49,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:49,729 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-11-29 02:24:49,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:49,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:49,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265912854] [2023-11-29 02:24:49,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:49,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358530009] [2023-11-29 02:24:49,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358530009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:49,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:49,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:24:49,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901263928] [2023-11-29 02:24:49,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:49,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:24:49,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:49,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:24:49,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:24:49,732 INFO L87 Difference]: Start difference. First operand 1679 states and 2694 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:50,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:50,705 INFO L93 Difference]: Finished difference Result 4344 states and 6903 transitions. [2023-11-29 02:24:50,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:24:50,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 493 [2023-11-29 02:24:50,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:50,727 INFO L225 Difference]: With dead ends: 4344 [2023-11-29 02:24:50,727 INFO L226 Difference]: Without dead ends: 3331 [2023-11-29 02:24:50,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 487 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:24:50,731 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 1344 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:50,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 2194 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 02:24:50,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3331 states. [2023-11-29 02:24:50,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3331 to 2419. [2023-11-29 02:24:50,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 2018 states have (on average 1.525272547076313) internal successors, (3078), 2024 states have internal predecessors, (3078), 375 states have call successors, (375), 25 states have call predecessors, (375), 25 states have return successors, (375), 369 states have call predecessors, (375), 375 states have call successors, (375) [2023-11-29 02:24:50,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3828 transitions. [2023-11-29 02:24:50,971 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3828 transitions. Word has length 493 [2023-11-29 02:24:50,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:50,972 INFO L495 AbstractCegarLoop]: Abstraction has 2419 states and 3828 transitions. [2023-11-29 02:24:50,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 6 states have internal predecessors, (131), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:50,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3828 transitions. [2023-11-29 02:24:50,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2023-11-29 02:24:50,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:50,980 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:50,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 02:24:51,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:51,181 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:51,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:51,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1308010881, now seen corresponding path program 1 times [2023-11-29 02:24:51,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:51,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713419613] [2023-11-29 02:24:51,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:51,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:51,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:51,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151617962] [2023-11-29 02:24:51,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:51,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:51,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:51,255 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:51,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 02:24:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:51,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:24:51,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:52,949 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 4398 proven. 153 refuted. 0 times theorem prover too weak. 5961 trivial. 0 not checked. [2023-11-29 02:24:52,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:24:53,856 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 63 proven. 153 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2023-11-29 02:24:53,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:53,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713419613] [2023-11-29 02:24:53,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:53,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151617962] [2023-11-29 02:24:53,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151617962] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:24:53,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:24:53,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 02:24:53,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866921135] [2023-11-29 02:24:53,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:24:53,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:24:53,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:53,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:24:53,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:24:53,861 INFO L87 Difference]: Start difference. First operand 2419 states and 3828 transitions. Second operand has 14 states, 14 states have (on average 17.428571428571427) internal successors, (244), 14 states have internal predecessors, (244), 4 states have call successors, (146), 3 states have call predecessors, (146), 5 states have return successors, (146), 4 states have call predecessors, (146), 4 states have call successors, (146) [2023-11-29 02:24:56,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:56,053 INFO L93 Difference]: Finished difference Result 6809 states and 10795 transitions. [2023-11-29 02:24:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 02:24:56,055 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.428571428571427) internal successors, (244), 14 states have internal predecessors, (244), 4 states have call successors, (146), 3 states have call predecessors, (146), 5 states have return successors, (146), 4 states have call predecessors, (146), 4 states have call successors, (146) Word has length 493 [2023-11-29 02:24:56,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:56,080 INFO L225 Difference]: With dead ends: 6809 [2023-11-29 02:24:56,080 INFO L226 Difference]: Without dead ends: 4484 [2023-11-29 02:24:56,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 993 GetRequests, 971 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:24:56,084 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 1972 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2039 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:56,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2039 Valid, 2972 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 02:24:56,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2023-11-29 02:24:56,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 3582. [2023-11-29 02:24:56,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3582 states, 3174 states have (on average 1.5683679899180845) internal successors, (4978), 3180 states have internal predecessors, (4978), 375 states have call successors, (375), 32 states have call predecessors, (375), 32 states have return successors, (375), 369 states have call predecessors, (375), 375 states have call successors, (375) [2023-11-29 02:24:56,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3582 states to 3582 states and 5728 transitions. [2023-11-29 02:24:56,319 INFO L78 Accepts]: Start accepts. Automaton has 3582 states and 5728 transitions. Word has length 493 [2023-11-29 02:24:56,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:56,320 INFO L495 AbstractCegarLoop]: Abstraction has 3582 states and 5728 transitions. [2023-11-29 02:24:56,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.428571428571427) internal successors, (244), 14 states have internal predecessors, (244), 4 states have call successors, (146), 3 states have call predecessors, (146), 5 states have return successors, (146), 4 states have call predecessors, (146), 4 states have call successors, (146) [2023-11-29 02:24:56,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3582 states and 5728 transitions. [2023-11-29 02:24:56,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-11-29 02:24:56,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:56,324 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:56,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 02:24:56,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 02:24:56,525 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:56,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:56,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1452247683, now seen corresponding path program 1 times [2023-11-29 02:24:56,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:56,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099482868] [2023-11-29 02:24:56,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:56,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:56,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:56,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886599268] [2023-11-29 02:24:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:56,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:56,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:56,581 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:56,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 02:24:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:57,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:24:57,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:57,111 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-11-29 02:24:57,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:24:57,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:24:57,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099482868] [2023-11-29 02:24:57,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:24:57,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886599268] [2023-11-29 02:24:57,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886599268] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:24:57,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:24:57,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:24:57,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064894264] [2023-11-29 02:24:57,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:24:57,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:24:57,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:24:57,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:24:57,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:24:57,115 INFO L87 Difference]: Start difference. First operand 3582 states and 5728 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:57,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:24:57,847 INFO L93 Difference]: Finished difference Result 14774 states and 23664 transitions. [2023-11-29 02:24:57,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:24:57,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2023-11-29 02:24:57,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:24:57,888 INFO L225 Difference]: With dead ends: 14774 [2023-11-29 02:24:57,888 INFO L226 Difference]: Without dead ends: 11347 [2023-11-29 02:24:57,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:24:57,895 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 1105 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 1868 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:24:57,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 1868 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:24:57,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2023-11-29 02:24:58,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 5404. [2023-11-29 02:24:58,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 4922 states have (on average 1.582080455099553) internal successors, (7787), 4931 states have internal predecessors, (7787), 444 states have call successors, (444), 37 states have call predecessors, (444), 37 states have return successors, (444), 435 states have call predecessors, (444), 444 states have call successors, (444) [2023-11-29 02:24:58,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 8675 transitions. [2023-11-29 02:24:58,214 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 8675 transitions. Word has length 494 [2023-11-29 02:24:58,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:24:58,215 INFO L495 AbstractCegarLoop]: Abstraction has 5404 states and 8675 transitions. [2023-11-29 02:24:58,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:24:58,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 8675 transitions. [2023-11-29 02:24:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-11-29 02:24:58,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:24:58,220 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:58,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 02:24:58,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 02:24:58,420 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:24:58,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:24:58,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1194082245, now seen corresponding path program 1 times [2023-11-29 02:24:58,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:24:58,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848225848] [2023-11-29 02:24:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:58,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:24:58,478 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:24:58,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141712753] [2023-11-29 02:24:58,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:24:58,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:24:58,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:24:58,480 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:24:58,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 02:24:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:24:58,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 02:24:58,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:24:59,680 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 4398 proven. 153 refuted. 0 times theorem prover too weak. 5961 trivial. 0 not checked. [2023-11-29 02:24:59,680 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:00,235 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 63 proven. 153 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2023-11-29 02:25:00,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:00,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848225848] [2023-11-29 02:25:00,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:00,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141712753] [2023-11-29 02:25:00,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141712753] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:25:00,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:25:00,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2023-11-29 02:25:00,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347624334] [2023-11-29 02:25:00,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:00,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 02:25:00,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:00,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 02:25:00,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-29 02:25:00,239 INFO L87 Difference]: Start difference. First operand 5404 states and 8675 transitions. Second operand has 17 states, 17 states have (on average 11.823529411764707) internal successors, (201), 17 states have internal predecessors, (201), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2023-11-29 02:25:07,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:07,227 INFO L93 Difference]: Finished difference Result 19618 states and 31317 transitions. [2023-11-29 02:25:07,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-11-29 02:25:07,228 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 11.823529411764707) internal successors, (201), 17 states have internal predecessors, (201), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 494 [2023-11-29 02:25:07,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:07,253 INFO L225 Difference]: With dead ends: 19618 [2023-11-29 02:25:07,253 INFO L226 Difference]: Without dead ends: 14353 [2023-11-29 02:25:07,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 988 SyntacticMatches, 4 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5032 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2665, Invalid=10907, Unknown=0, NotChecked=0, Total=13572 [2023-11-29 02:25:07,264 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 7053 mSDsluCounter, 3598 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 2971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7113 SdHoareTripleChecker+Valid, 4193 SdHoareTripleChecker+Invalid, 6069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2971 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:07,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7113 Valid, 4193 Invalid, 6069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2971 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-29 02:25:07,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14353 states. [2023-11-29 02:25:07,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14353 to 2304. [2023-11-29 02:25:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2304 states, 2058 states have (on average 1.563168124392614) internal successors, (3217), 2058 states have internal predecessors, (3217), 219 states have call successors, (219), 26 states have call predecessors, (219), 26 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2023-11-29 02:25:07,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 3655 transitions. [2023-11-29 02:25:07,520 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 3655 transitions. Word has length 494 [2023-11-29 02:25:07,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:07,521 INFO L495 AbstractCegarLoop]: Abstraction has 2304 states and 3655 transitions. [2023-11-29 02:25:07,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.823529411764707) internal successors, (201), 17 states have internal predecessors, (201), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2023-11-29 02:25:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 3655 transitions. [2023-11-29 02:25:07,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-11-29 02:25:07,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:07,525 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:25:07,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 02:25:07,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 02:25:07,725 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:07,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:07,726 INFO L85 PathProgramCache]: Analyzing trace with hash 120480059, now seen corresponding path program 1 times [2023-11-29 02:25:07,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:07,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121922111] [2023-11-29 02:25:07,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:07,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:07,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:07,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1052076847] [2023-11-29 02:25:07,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:07,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:07,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:07,785 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:07,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 02:25:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:08,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:25:08,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 4398 proven. 153 refuted. 0 times theorem prover too weak. 5961 trivial. 0 not checked. [2023-11-29 02:25:09,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:09,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 63 proven. 153 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2023-11-29 02:25:09,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:09,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121922111] [2023-11-29 02:25:09,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:09,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052076847] [2023-11-29 02:25:09,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052076847] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:25:09,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:25:09,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 21 [2023-11-29 02:25:09,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007583631] [2023-11-29 02:25:09,943 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:09,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 02:25:09,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:09,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 02:25:09,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:25:09,945 INFO L87 Difference]: Start difference. First operand 2304 states and 3655 transitions. Second operand has 21 states, 21 states have (on average 9.380952380952381) internal successors, (197), 21 states have internal predecessors, (197), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2023-11-29 02:25:13,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:13,831 INFO L93 Difference]: Finished difference Result 3944 states and 6058 transitions. [2023-11-29 02:25:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-29 02:25:13,832 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.380952380952381) internal successors, (197), 21 states have internal predecessors, (197), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 494 [2023-11-29 02:25:13,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:13,836 INFO L225 Difference]: With dead ends: 3944 [2023-11-29 02:25:13,836 INFO L226 Difference]: Without dead ends: 1799 [2023-11-29 02:25:13,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1056 GetRequests, 975 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1831 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1406, Invalid=5074, Unknown=0, NotChecked=0, Total=6480 [2023-11-29 02:25:13,840 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 4369 mSDsluCounter, 2097 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 1755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4436 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1755 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:13,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4436 Valid, 2490 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1755 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 02:25:13,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2023-11-29 02:25:13,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1124. [2023-11-29 02:25:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 875 states have (on average 1.432) internal successors, (1253), 875 states have internal predecessors, (1253), 219 states have call successors, (219), 29 states have call predecessors, (219), 29 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2023-11-29 02:25:13,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1691 transitions. [2023-11-29 02:25:13,958 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1691 transitions. Word has length 494 [2023-11-29 02:25:13,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:13,959 INFO L495 AbstractCegarLoop]: Abstraction has 1124 states and 1691 transitions. [2023-11-29 02:25:13,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.380952380952381) internal successors, (197), 21 states have internal predecessors, (197), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2023-11-29 02:25:13,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1691 transitions. [2023-11-29 02:25:13,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-11-29 02:25:13,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:13,962 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:25:13,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 02:25:14,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 02:25:14,163 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:14,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:14,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1821651259, now seen corresponding path program 1 times [2023-11-29 02:25:14,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:14,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602920883] [2023-11-29 02:25:14,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:14,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:14,231 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:14,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972314668] [2023-11-29 02:25:14,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:14,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:14,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:14,232 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:14,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 02:25:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:14,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:25:14,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:15,255 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2023-11-29 02:25:15,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:25:15,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:15,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602920883] [2023-11-29 02:25:15,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:15,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972314668] [2023-11-29 02:25:15,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972314668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:25:15,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:25:15,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:25:15,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741825929] [2023-11-29 02:25:15,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:25:15,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:25:15,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:15,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:25:15,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:25:15,258 INFO L87 Difference]: Start difference. First operand 1124 states and 1691 transitions. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 6 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:25:16,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:16,059 INFO L93 Difference]: Finished difference Result 3043 states and 4566 transitions. [2023-11-29 02:25:16,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:25:16,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 6 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 494 [2023-11-29 02:25:16,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:16,063 INFO L225 Difference]: With dead ends: 3043 [2023-11-29 02:25:16,064 INFO L226 Difference]: Without dead ends: 2082 [2023-11-29 02:25:16,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:25:16,066 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1132 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:16,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 2415 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 02:25:16,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2023-11-29 02:25:16,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1168. [2023-11-29 02:25:16,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 919 states have (on average 1.4232861806311208) internal successors, (1308), 919 states have internal predecessors, (1308), 219 states have call successors, (219), 29 states have call predecessors, (219), 29 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2023-11-29 02:25:16,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1746 transitions. [2023-11-29 02:25:16,302 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1746 transitions. Word has length 494 [2023-11-29 02:25:16,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:16,303 INFO L495 AbstractCegarLoop]: Abstraction has 1168 states and 1746 transitions. [2023-11-29 02:25:16,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 6 states have internal predecessors, (132), 1 states have call successors, (73), 1 states have call predecessors, (73), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2023-11-29 02:25:16,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1746 transitions. [2023-11-29 02:25:16,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-11-29 02:25:16,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:16,308 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:25:16,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 02:25:16,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 02:25:16,509 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:16,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:16,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2023475193, now seen corresponding path program 1 times [2023-11-29 02:25:16,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:16,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901071191] [2023-11-29 02:25:16,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:16,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:16,561 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:16,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731840430] [2023-11-29 02:25:16,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:16,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:16,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:16,563 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:16,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 02:25:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:17,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:25:17,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 5118 proven. 129 refuted. 0 times theorem prover too weak. 5265 trivial. 0 not checked. [2023-11-29 02:25:17,312 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 87 proven. 129 refuted. 0 times theorem prover too weak. 10296 trivial. 0 not checked. [2023-11-29 02:25:17,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:17,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901071191] [2023-11-29 02:25:17,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:17,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731840430] [2023-11-29 02:25:17,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731840430] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:25:17,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:25:17,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 02:25:17,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704788142] [2023-11-29 02:25:17,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:17,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:25:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:17,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:25:17,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:25:17,557 INFO L87 Difference]: Start difference. First operand 1168 states and 1746 transitions. Second operand has 12 states, 12 states have (on average 16.0) internal successors, (192), 12 states have internal predecessors, (192), 3 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2023-11-29 02:25:18,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:18,738 INFO L93 Difference]: Finished difference Result 2193 states and 3274 transitions. [2023-11-29 02:25:18,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:25:18,739 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 16.0) internal successors, (192), 12 states have internal predecessors, (192), 3 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) Word has length 494 [2023-11-29 02:25:18,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:18,743 INFO L225 Difference]: With dead ends: 2193 [2023-11-29 02:25:18,743 INFO L226 Difference]: Without dead ends: 1230 [2023-11-29 02:25:18,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 998 GetRequests, 977 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:25:18,746 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 1317 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:18,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1347 Valid, 1656 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 02:25:18,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2023-11-29 02:25:18,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1184. [2023-11-29 02:25:18,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 932 states have (on average 1.4152360515021458) internal successors, (1319), 932 states have internal predecessors, (1319), 219 states have call successors, (219), 32 states have call predecessors, (219), 32 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2023-11-29 02:25:18,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1757 transitions. [2023-11-29 02:25:18,975 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1757 transitions. Word has length 494 [2023-11-29 02:25:18,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:18,975 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1757 transitions. [2023-11-29 02:25:18,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.0) internal successors, (192), 12 states have internal predecessors, (192), 3 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 3 states have call predecessors, (117), 3 states have call successors, (117) [2023-11-29 02:25:18,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1757 transitions. [2023-11-29 02:25:18,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-11-29 02:25:18,980 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:18,980 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:25:18,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 02:25:19,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 02:25:19,181 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:19,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:19,181 INFO L85 PathProgramCache]: Analyzing trace with hash -562273479, now seen corresponding path program 1 times [2023-11-29 02:25:19,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:19,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169045321] [2023-11-29 02:25:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:19,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:19,248 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:19,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385099739] [2023-11-29 02:25:19,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:19,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:19,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:19,250 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:19,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 02:25:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:25:19,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 1202 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-29 02:25:19,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:25:26,700 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 7188 proven. 768 refuted. 0 times theorem prover too weak. 2556 trivial. 0 not checked. [2023-11-29 02:25:26,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:25:42,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:25:42,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169045321] [2023-11-29 02:25:42,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:25:42,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385099739] [2023-11-29 02:25:42,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385099739] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:25:42,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:25:42,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2023-11-29 02:25:42,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557197] [2023-11-29 02:25:42,514 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 02:25:42,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-11-29 02:25:42,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:25:42,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-11-29 02:25:42,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=685, Invalid=2285, Unknown=0, NotChecked=0, Total=2970 [2023-11-29 02:25:42,517 INFO L87 Difference]: Start difference. First operand 1184 states and 1757 transitions. Second operand has 33 states, 33 states have (on average 4.909090909090909) internal successors, (162), 29 states have internal predecessors, (162), 8 states have call successors, (73), 8 states have call predecessors, (73), 11 states have return successors, (73), 8 states have call predecessors, (73), 8 states have call successors, (73) [2023-11-29 02:25:47,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:25:47,681 INFO L93 Difference]: Finished difference Result 2687 states and 4013 transitions. [2023-11-29 02:25:47,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-11-29 02:25:47,681 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.909090909090909) internal successors, (162), 29 states have internal predecessors, (162), 8 states have call successors, (73), 8 states have call predecessors, (73), 11 states have return successors, (73), 8 states have call predecessors, (73), 8 states have call successors, (73) Word has length 494 [2023-11-29 02:25:47,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:25:47,684 INFO L225 Difference]: With dead ends: 2687 [2023-11-29 02:25:47,684 INFO L226 Difference]: Without dead ends: 1712 [2023-11-29 02:25:47,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3036 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=2587, Invalid=8333, Unknown=0, NotChecked=0, Total=10920 [2023-11-29 02:25:47,690 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 3170 mSDsluCounter, 3854 mSDsCounter, 0 mSdLazyCounter, 3369 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3170 SdHoareTripleChecker+Valid, 4152 SdHoareTripleChecker+Invalid, 3603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 3369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:25:47,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3170 Valid, 4152 Invalid, 3603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 3369 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 02:25:47,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2023-11-29 02:25:47,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1262. [2023-11-29 02:25:47,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1002 states have (on average 1.407185628742515) internal successors, (1410), 1002 states have internal predecessors, (1410), 219 states have call successors, (219), 40 states have call predecessors, (219), 40 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2023-11-29 02:25:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1848 transitions. [2023-11-29 02:25:47,835 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1848 transitions. Word has length 494 [2023-11-29 02:25:47,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:25:47,836 INFO L495 AbstractCegarLoop]: Abstraction has 1262 states and 1848 transitions. [2023-11-29 02:25:47,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.909090909090909) internal successors, (162), 29 states have internal predecessors, (162), 8 states have call successors, (73), 8 states have call predecessors, (73), 11 states have return successors, (73), 8 states have call predecessors, (73), 8 states have call successors, (73) [2023-11-29 02:25:47,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1848 transitions. [2023-11-29 02:25:47,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2023-11-29 02:25:47,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:25:47,839 INFO L195 NwaCegarLoop]: trace histogram [73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:25:47,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 02:25:48,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 02:25:48,040 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:25:48,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:25:48,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1887326651, now seen corresponding path program 1 times [2023-11-29 02:25:48,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:25:48,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116312504] [2023-11-29 02:25:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:48,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:25:48,106 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:25:48,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603017582] [2023-11-29 02:25:48,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:25:48,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:25:48,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:25:48,108 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:25:48,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_838f2665-3932-48ee-bf15-0506ea3aeddb/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 02:26:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:26:00,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 150 conjunts are in the unsatisfiable core [2023-11-29 02:26:00,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:26:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 8022 proven. 1241 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2023-11-29 02:26:38,408 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:28:47,813 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:29:40,440 WARN L293 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:30:28,919 WARN L293 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:30:51,612 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:33:00,153 WARN L293 SmtUtils]: Spent 6.93s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:33:08,201 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:33:20,579 WARN L293 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:33:26,915 WARN L293 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:33:46,400 WARN L293 SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:33:54,446 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:34:26,283 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:34:43,212 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:34:53,400 WARN L293 SmtUtils]: Spent 7.05s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:35:07,175 WARN L293 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:35:28,462 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:35:52,205 WARN L293 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:36:01,513 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~var_1_13~0 256))) (or (= (mod c_~var_1_41~0 256) 0) (< 0 .cse0) (let ((.cse152 (* c_~var_1_34~0 255))) (let ((.cse27 (mod (+ (* 255 c_~var_1_77~0) .cse152 c_~var_1_81~0) 256))) (let ((.cse115 (mod c_~var_1_71~0 256)) (.cse137 (* .cse27 4294967295))) (let ((.cse66 (mod (+ .cse137 256 c_~var_1_68~0) 4294967296)) (.cse139 (* 4294967295 .cse115)) (.cse140 (mod (+ .cse137 c_~var_1_68~0) 4294967296)) (.cse138 (* 4294967295 c_~var_1_81~0))) (let ((.cse26 (mod (+ c_~var_1_83~0 .cse138) 4294967296)) (.cse143 (* (- 1) .cse140)) (.cse11 (mod c_~var_1_68~0 4294967296)) (.cse73 (mod (+ .cse139 c_~var_1_68~0) 4294967296)) (.cse31 (* .cse66 4294967295))) (let ((.cse64 (* (div (+ (- 18446744069414584311) .cse31) 4294967296) 4294967296)) (.cse43 (* 4294967295 .cse140)) (.cse34 (* 4294967295 .cse73)) (.cse144 (* .cse11 (- 1))) (.cse4 (mod c_~var_1_35~0 256)) (.cse14 (mod (+ .cse152 (* 255 c_~var_1_13~0)) 256)) (.cse142 (* (div .cse143 4294967296) 4294967296)) (.cse141 (* (- 1) .cse26)) (.cse151 (* (- 1) .cse66)) (.cse87 (mod c_~var_1_32~0 256))) (let ((.cse23 (< .cse27 128)) (.cse47 (< 127 .cse27)) (.cse32 (< .cse27 (+ .cse115 1))) (.cse40 (< .cse115 .cse27)) (.cse116 (+ .cse87 1)) (.cse67 (* (div .cse151 4294967296) 4294967296)) (.cse72 (* (- 1) .cse73)) (.cse48 (< .cse11 (+ (* 4294967296 (div (+ .cse141 .cse11 (- 1) .cse143) 4294967296)) .cse140 4294967296))) (.cse49 (< .cse11 (+ .cse142 .cse140 4294967297 .cse87))) (.cse74 (* (- 1) .cse87)) (.cse121 (+ .cse4 .cse14)) (.cse145 (* 4294967296 (div (+ (- 1) .cse66 .cse144) 4294967296))) (.cse86 (* 4294967296 (div (+ .cse66 .cse26 .cse144) 4294967296))) (.cse70 (* (div (+ .cse34 (- 18446744069414584311)) 4294967296) 4294967296)) (.cse77 (* 4294967296 (div (+ .cse43 (- 18446744069414584311)) 4294967296))) (.cse28 (+ 18446744069414584319 .cse64)) (.cse12 (mod c_~var_1_16~0 256)) (.cse13 (+ 256 c_~last_1_var_1_27~0)) (.cse5 (mod c_~last_1_var_1_27~0 65536)) (.cse122 (* (div (+ .cse141 .cse151 .cse11 (- 1)) 4294967296) 4294967296))) (let ((.cse55 (< .cse11 (+ .cse66 4294967297 .cse87 .cse122))) (.cse22 (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse148 (* v_z_132 65535)) (.cse149 (* 65536 v_y_132)) (.cse150 (+ .cse5 v_z_132))) (or (< .cse28 (+ .cse148 .cse149 .cse31)) (< .cse150 65536) (< (+ .cse4 .cse5 v_z_132) 65537) (< (+ .cse148 .cse149) .cse12) (< .cse13 (+ .cse148 .cse149 .cse14)) (< 65535 v_z_132) (< 98303 .cse150))))) (.cse21 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse146 (* v_z_133 65535)) (.cse147 (* 65536 v_y_133))) (or (< .cse28 (+ .cse146 .cse31 .cse147)) (< 65535 (+ .cse5 v_z_133)) (< .cse13 (+ .cse146 .cse14 .cse147)) (< (+ .cse4 .cse5 v_z_133) 65537) (< v_z_133 0) (< (+ .cse146 .cse147) .cse12))))) (.cse41 (+ 18446744069414584319 .cse77)) (.cse33 (+ 18446744069414584319 .cse70)) (.cse20 (< .cse86 .cse66)) (.cse24 (< (+ .cse66 .cse26) (+ .cse11 4294967296 .cse145))) (.cse25 (< .cse66 (+ 4294967297 .cse145))) (.cse38 (< (+ .cse11 (* (div (+ .cse26 .cse144 .cse73) 4294967296) 4294967296)) (+ .cse87 .cse73 1))) (.cse46 (< (+ .cse11 (* (div (+ .cse140 .cse26 .cse144) 4294967296) 4294967296)) (+ .cse140 .cse87 1))) (.cse62 (< .cse121 257)) (.cse78 (+ .cse43 c_~last_1_var_1_27~0)) (.cse79 (and (or .cse48 .cse49) (or (< (+ .cse142 .cse140 .cse26) .cse11) (< (+ .cse140 (* (div (+ .cse11 .cse143 4294967295 .cse74) 4294967296) 4294967296)) 1)))) (.cse71 (+ .cse34 c_~last_1_var_1_27~0)) (.cse104 (< .cse66 1)) (.cse65 (+ c_~last_1_var_1_27~0 .cse31)) (.cse105 (+ .cse12 .cse14)) (.cse63 (< (+ .cse0 18446744069414584319 .cse64) .cse31)) (.cse52 (< .cse11 (+ (* 4294967296 (div (+ .cse141 .cse11 (- 1) .cse72) 4294967296)) 4294967297 .cse87 .cse73))) (.cse69 (< (+ .cse0 18446744069414584319 .cse70) .cse34)) (.cse39 (< .cse73 1)) (.cse75 (< (+ 18446744069414584320 .cse77) .cse43)) (.cse76 (< .cse140 1)) (.cse68 (<= (+ .cse66 .cse26 1 .cse67) .cse11)) (.cse1 (< .cse26 .cse116)) (.cse10 (+ .cse26 1)) (.cse18 (+ 4294967297 .cse26)) (.cse2 (and (or .cse23 (not (= (mod (+ .cse137 c_~var_1_83~0 256 .cse138) 4294967296) 0))) (or .cse47 (and (or .cse32 (not (= (mod (+ .cse139 c_~var_1_83~0 .cse138) 4294967296) 0))) (or .cse40 (not (= (mod (+ .cse137 c_~var_1_83~0 .cse138) 4294967296) 0)))))))) (and (or .cse1 .cse2 (and (forall ((v_z_132 Int)) (let ((.cse3 (+ .cse5 v_z_132))) (or (< .cse3 65536) (< (+ .cse4 .cse5 v_z_132) 65537) (forall ((v_y_132 Int)) (let ((.cse8 (* v_z_132 65535)) (.cse9 (* 65536 v_y_132))) (or (forall ((v_y_239 Int) (v_z_239 Int)) (let ((.cse7 (+ (* 4294967295 v_z_239) (* v_y_239 4294967296))) (.cse6 (+ .cse11 v_z_239))) (or (< v_z_239 0) (< 4294967295 .cse6) (< .cse7 (+ .cse8 .cse9 1)) (< 9 .cse7) (< .cse6 .cse10)))) (< (+ .cse8 .cse9) .cse12) (< .cse13 (+ .cse8 .cse9 .cse14))))) (< 65535 v_z_132) (< 98303 .cse3)))) (forall ((v_z_132 Int)) (let ((.cse19 (+ .cse5 v_z_132))) (or (forall ((v_y_132 Int)) (let ((.cse16 (* v_z_132 65535)) (.cse17 (* 65536 v_y_132))) (or (forall ((v_y_239 Int) (v_z_239 Int)) (let ((.cse15 (+ (* 4294967295 v_z_239) (* v_y_239 4294967296)))) (or (< 4294967295 v_z_239) (< .cse15 (+ .cse16 .cse17 1)) (< 9 .cse15) (< (+ .cse11 v_z_239) .cse18)))) (< (+ .cse16 .cse17) .cse12) (< .cse13 (+ .cse16 .cse17 .cse14))))) (< .cse19 65536) (< (+ .cse4 .cse5 v_z_132) 65537) (< 65535 v_z_132) (< 98303 .cse19)))))) (or .cse20 .cse21) (or .cse22 .cse23 .cse24 .cse25) (or .cse23 (< .cse26 (+ .cse27 4294967040)) (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse29 (* v_z_132 65535)) (.cse30 (* 65536 v_y_132))) (or (< (+ .cse4 .cse5 v_z_132) 1) (< .cse28 (+ .cse29 .cse30 .cse31)) (< 32767 (+ .cse5 v_z_132)) (< v_z_132 0) (< (+ .cse29 .cse30) .cse12) (< .cse13 (+ .cse29 .cse30 .cse14)))))) (or (and (or .cse32 (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse35 (* v_z_132 65535)) (.cse36 (* 65536 v_y_132)) (.cse37 (+ .cse5 v_z_132))) (or (< .cse33 (+ .cse34 .cse35 .cse36)) (< .cse37 65536) (< (+ .cse4 .cse5 v_z_132) 65537) (< (+ .cse35 .cse36) .cse12) (< .cse13 (+ .cse35 .cse36 .cse14)) (< 65535 v_z_132) (< 98303 .cse37)))) .cse38 .cse39) (or .cse40 (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse42 (* v_z_132 65535)) (.cse44 (* 65536 v_y_132)) (.cse45 (+ .cse5 v_z_132))) (or (< .cse41 (+ .cse42 .cse43 .cse44)) (< .cse45 65536) (< (+ .cse4 .cse5 v_z_132) 65537) (< (+ .cse42 .cse44) .cse12) (< .cse13 (+ .cse42 .cse44 .cse14)) (< 65535 v_z_132) (< 98303 .cse45)))) .cse46)) .cse47) (or .cse47 (and (or .cse40 .cse48 .cse49 (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse50 (* v_z_132 65535)) (.cse51 (* 65536 v_y_132))) (or (< (+ .cse4 .cse5 v_z_132) 1) (< 32767 (+ .cse5 v_z_132)) (< .cse41 (+ .cse50 .cse43 .cse51)) (< v_z_132 0) (< (+ .cse50 .cse51) .cse12) (< .cse13 (+ .cse50 .cse51 .cse14)))))) (or .cse32 .cse52 (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse53 (* v_z_132 65535)) (.cse54 (* 65536 v_y_132))) (or (< (+ .cse4 .cse5 v_z_132) 1) (< .cse33 (+ .cse34 .cse53 .cse54)) (< 32767 (+ .cse5 v_z_132)) (< v_z_132 0) (< (+ .cse53 .cse54) .cse12) (< .cse13 (+ .cse53 .cse54 .cse14))))) .cse39))) (or .cse23 .cse55 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse56 (* v_z_133 65535)) (.cse57 (* 65536 v_y_133))) (or (< .cse28 (+ .cse56 .cse31 .cse57)) (< .cse13 (+ .cse56 .cse14 .cse57)) (< (+ .cse4 .cse5 v_z_133) 131073) (< 65535 v_z_133) (< (+ .cse56 .cse57) .cse12))))) (or (and (or .cse32 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse58 (* v_z_133 65535)) (.cse59 (* 65536 v_y_133))) (or (< 65535 (+ .cse5 v_z_133)) (< .cse13 (+ .cse58 .cse14 .cse59)) (< (+ .cse4 .cse5 v_z_133) 65537) (< .cse33 (+ .cse58 .cse34 .cse59)) (< v_z_133 0) (< (+ .cse58 .cse59) .cse12)))) .cse38 .cse39) (or .cse40 .cse46 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse60 (* v_z_133 65535)) (.cse61 (* 65536 v_y_133))) (or (< 65535 (+ .cse5 v_z_133)) (< .cse41 (+ .cse60 .cse43 .cse61)) (< .cse13 (+ .cse60 .cse14 .cse61)) (< (+ .cse4 .cse5 v_z_133) 65537) (< v_z_133 0) (< (+ .cse60 .cse61) .cse12)))))) .cse47) (or .cse62 (and (or .cse23 .cse63 (< (+ 18446744069414584062 .cse64 .cse14) .cse65) (and (or .cse55 (< .cse11 (+ .cse66 4294967296 .cse67))) .cse68)) (or .cse47 (and (or .cse32 .cse69 (< (+ 18446744069414584062 .cse70 .cse14) .cse71) (and (or (< .cse11 (+ (* (div .cse72 4294967296) 4294967296) 4294967296 .cse73)) .cse52) (<= (+ (* (div (+ .cse11 .cse72 4294967295 .cse74) 4294967296) 4294967296) .cse26 .cse73) (+ .cse11 4294967295))) .cse39) (or .cse75 .cse76 .cse40 (< (+ 18446744069414584062 .cse77 .cse14) .cse78) .cse79))) (or (let ((.cse83 (+ c_~last_1_var_1_27~0 258))) (and (forall ((v_z_142 Int) (v_y_142 Int)) (let ((.cse80 (+ .cse11 v_z_142)) (.cse81 (* 4294967295 v_z_142)) (.cse82 (* v_y_142 4294967296))) (or (< .cse80 .cse10) (< v_z_142 0) (< 4294967295 .cse80) (< 9 (+ .cse81 .cse82)) (< (+ .cse81 .cse0 .cse82) 1) (< (+ .cse81 .cse14 .cse82) .cse83)))) (forall ((v_z_142 Int) (v_y_142 Int)) (let ((.cse84 (* 4294967295 v_z_142)) (.cse85 (* v_y_142 4294967296))) (or (< (+ .cse11 v_z_142) .cse18) (< 4294967295 v_z_142) (< 9 (+ .cse84 .cse85)) (< (+ .cse84 .cse0 .cse85) 1) (< (+ .cse84 .cse14 .cse85) .cse83)))))) .cse1 .cse2))) (or .cse22 .cse20) (or .cse23 (< (+ .cse11 .cse86) (+ .cse66 .cse87 1)) .cse21) (or (and (or .cse40 .cse46 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse88 (* v_z_133 65535)) (.cse89 (* 65536 v_y_133))) (or (< .cse41 (+ .cse88 .cse43 .cse89)) (< .cse13 (+ .cse88 .cse14 .cse89)) (< (+ .cse4 .cse5 v_z_133) 131073) (< 65535 v_z_133) (< (+ .cse88 .cse89) .cse12))))) (or .cse32 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse90 (* v_z_133 65535)) (.cse91 (* 65536 v_y_133))) (or (< .cse13 (+ .cse90 .cse14 .cse91)) (< (+ .cse4 .cse5 v_z_133) 131073) (< .cse33 (+ .cse90 .cse34 .cse91)) (< 65535 v_z_133) (< (+ .cse90 .cse91) .cse12)))) .cse38 .cse39)) .cse47) (or (and (forall ((v_z_133 Int)) (or (< (+ .cse4 .cse5 v_z_133) 131073) (< 65535 v_z_133) (forall ((v_y_133 Int)) (let ((.cse94 (* v_z_133 65535)) (.cse95 (* 65536 v_y_133))) (or (forall ((v_y_183 Int) (v_z_183 Int)) (let ((.cse92 (+ .cse11 v_z_183)) (.cse93 (+ (* 4294967295 v_z_183) (* v_y_183 4294967296)))) (or (< 4294967295 .cse92) (< .cse93 (+ .cse94 .cse95 1)) (< v_z_183 0) (< .cse92 .cse10) (< 9 .cse93)))) (< .cse13 (+ .cse94 .cse14 .cse95)) (< (+ .cse94 .cse95) .cse12)))))) (forall ((v_z_133 Int)) (or (< (+ .cse4 .cse5 v_z_133) 131073) (< 65535 v_z_133) (forall ((v_y_133 Int)) (let ((.cse97 (* v_z_133 65535)) (.cse98 (* 65536 v_y_133))) (or (forall ((v_y_183 Int) (v_z_183 Int)) (let ((.cse96 (+ (* 4294967295 v_z_183) (* v_y_183 4294967296)))) (or (< (+ .cse11 v_z_183) .cse18) (< .cse96 (+ .cse97 .cse98 1)) (< 4294967295 v_z_183) (< 9 .cse96)))) (< .cse13 (+ .cse97 .cse14 .cse98)) (< (+ .cse97 .cse98) .cse12))))))) .cse1 .cse2) (or (and (or .cse1 .cse2 (and (forall ((v_z_222 Int) (v_y_222 Int)) (let ((.cse99 (* 4294967295 v_z_222)) (.cse100 (* v_y_222 4294967296))) (or (< 9 (+ .cse99 .cse100)) (< (+ .cse0 .cse99 .cse100) 1) (< 4294967295 v_z_222) (< (+ .cse11 v_z_222) .cse18)))) (forall ((v_z_222 Int) (v_y_222 Int)) (let ((.cse101 (* 4294967295 v_z_222)) (.cse102 (* v_y_222 4294967296)) (.cse103 (+ .cse11 v_z_222))) (or (< v_z_222 0) (< 9 (+ .cse101 .cse102)) (< (+ .cse0 .cse101 .cse102) 1) (< 4294967295 .cse103) (< .cse103 .cse10)))))) (or .cse63 .cse104 .cse20) (or .cse23 .cse63 .cse24 .cse25) (or (and (or .cse32 .cse69 .cse38 .cse39) (or .cse75 .cse76 .cse40 .cse46)) .cse47)) (< (+ .cse0 .cse12) 1) (and (or (< .cse105 (+ 257 c_~last_1_var_1_27~0)) .cse62) (or (< .cse13 .cse105) (let ((.cse107 (mod (+ c_~last_1_var_1_27~0 (* .cse12 65535)) 65536))) (let ((.cse106 (+ .cse4 .cse107))) (and (<= .cse106 65536) (or (< 32767 .cse107) (< .cse106 1)))))))) (or (< 127 .cse14) (let ((.cse117 (and .cse68 (<= .cse11 (+ .cse66 .cse87 .cse122 4294967296)))) (.cse108 (< .cse121 1))) (and (or .cse108 (and (or .cse1 .cse2 (let ((.cse111 (+ 2 c_~last_1_var_1_27~0))) (and (forall ((v_y_260 Int) (v_z_260 Int)) (let ((.cse109 (* v_y_260 4294967296)) (.cse110 (* 4294967295 v_z_260))) (or (< (+ .cse14 .cse109 .cse110) .cse111) (< (+ .cse11 v_z_260) .cse18) (< (+ .cse0 .cse109 .cse110) 1) (< 9 (+ .cse109 .cse110)) (< 4294967295 v_z_260)))) (forall ((v_y_260 Int) (v_z_260 Int)) (let ((.cse112 (+ .cse11 v_z_260)) (.cse113 (* v_y_260 4294967296)) (.cse114 (* 4294967295 v_z_260))) (or (< 4294967295 .cse112) (< (+ .cse14 .cse113 .cse114) .cse111) (< .cse112 .cse10) (< (+ .cse0 .cse113 .cse114) 1) (< 9 (+ .cse113 .cse114)) (< v_z_260 0))))))) (or .cse47 (and (or .cse75 (< (+ 18446744069414584318 .cse77 .cse14) .cse78) .cse76 .cse40 .cse79) (or .cse32 .cse69 (< .cse26 .cse115) .cse39 (< (+ 18446744069414584318 .cse70 .cse14) .cse71) (< .cse115 .cse116)))) (or .cse23 .cse63 .cse104 (< (+ 18446744069414584318 .cse64 .cse14) .cse65) .cse117))) (or (< .cse105 (+ c_~last_1_var_1_27~0 1)) (and (or .cse23 .cse63 .cse117) (or .cse47 (and (or .cse32 .cse52 .cse69 .cse39) (or .cse75 (< .cse27 .cse116) .cse76 .cse40 (< .cse26 .cse27)))) (or .cse1 .cse2 (and (forall ((v_y_280 Int) (v_z_280 Int)) (let ((.cse118 (* v_y_280 4294967296)) (.cse119 (* 4294967295 v_z_280))) (or (< 9 (+ .cse118 .cse119)) (< (+ .cse0 .cse118 .cse119) 1) (< 4294967295 (+ .cse11 v_z_280)) (< v_z_280 0)))) (forall ((v_y_280 Int) (v_z_280 Int)) (let ((.cse120 (+ (* v_y_280 4294967296) (* 4294967295 v_z_280)))) (or (< 9 .cse120) (< 4294967295 v_z_280) (< (+ .cse11 v_z_280) .cse18) (< .cse120 0))))))) .cse108)))) (or .cse1 .cse2 (and (forall ((v_z_133 Int)) (or (< 65535 (+ .cse5 v_z_133)) (< (+ .cse4 .cse5 v_z_133) 65537) (forall ((v_y_133 Int)) (let ((.cse123 (* v_z_133 65535)) (.cse124 (* 65536 v_y_133))) (or (< .cse13 (+ .cse123 .cse14 .cse124)) (forall ((v_y_294 Int) (v_z_294 Int)) (let ((.cse125 (+ .cse11 v_z_294)) (.cse126 (+ (* v_y_294 4294967296) (* 4294967295 v_z_294)))) (or (< v_z_294 0) (< .cse125 .cse10) (< 4294967295 .cse125) (< .cse126 (+ .cse123 .cse124 1)) (< 9 .cse126)))) (< (+ .cse123 .cse124) .cse12)))) (< v_z_133 0))) (forall ((v_z_133 Int)) (or (< 65535 (+ .cse5 v_z_133)) (< (+ .cse4 .cse5 v_z_133) 65537) (forall ((v_y_133 Int)) (let ((.cse127 (* v_z_133 65535)) (.cse128 (* 65536 v_y_133))) (or (< .cse13 (+ .cse127 .cse14 .cse128)) (forall ((v_y_294 Int) (v_z_294 Int)) (let ((.cse129 (+ (* v_y_294 4294967296) (* 4294967295 v_z_294)))) (or (< .cse129 (+ .cse127 .cse128 1)) (< 9 .cse129) (< 4294967295 v_z_294) (< (+ .cse11 v_z_294) .cse18)))) (< (+ .cse127 .cse128) .cse12)))) (< v_z_133 0))))) (or .cse1 (and (forall ((v_z_132 Int)) (or (forall ((v_y_132 Int)) (let ((.cse131 (* v_z_132 65535)) (.cse132 (* 65536 v_y_132))) (or (forall ((v_z_186 Int) (v_y_186 Int)) (let ((.cse130 (+ (* v_y_186 4294967296) (* 4294967295 v_z_186))) (.cse133 (+ .cse11 v_z_186))) (or (< v_z_186 0) (< .cse130 (+ .cse131 .cse132 1)) (< 9 .cse130) (< .cse133 .cse10) (< 4294967295 .cse133)))) (< (+ .cse131 .cse132) .cse12) (< .cse13 (+ .cse131 .cse132 .cse14))))) (< (+ .cse4 .cse5 v_z_132) 1) (< 32767 (+ .cse5 v_z_132)) (< v_z_132 0))) (forall ((v_z_132 Int)) (or (< (+ .cse4 .cse5 v_z_132) 1) (< 32767 (+ .cse5 v_z_132)) (< v_z_132 0) (forall ((v_y_132 Int)) (let ((.cse135 (* v_z_132 65535)) (.cse136 (* 65536 v_y_132))) (or (forall ((v_z_186 Int) (v_y_186 Int)) (let ((.cse134 (+ (* v_y_186 4294967296) (* 4294967295 v_z_186)))) (or (< (+ .cse11 v_z_186) .cse18) (< .cse134 (+ .cse135 .cse136 1)) (< 9 .cse134) (< 4294967295 v_z_186)))) (< (+ .cse135 .cse136) .cse12) (< .cse13 (+ .cse135 .cse136 .cse14)))))))) .cse2)))))))))))) is different from false [2023-11-29 02:36:05,543 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~var_1_13~0 256))) (or (= (mod c_~var_1_41~0 256) 0) (< 0 .cse0) (let ((.cse152 (* c_~var_1_34~0 255))) (let ((.cse27 (mod (+ (* 255 c_~var_1_77~0) .cse152 c_~var_1_81~0) 256))) (let ((.cse115 (mod c_~var_1_71~0 256)) (.cse137 (* .cse27 4294967295))) (let ((.cse66 (mod (+ .cse137 256 c_~var_1_68~0) 4294967296)) (.cse139 (* 4294967295 .cse115)) (.cse140 (mod (+ .cse137 c_~var_1_68~0) 4294967296)) (.cse138 (* 4294967295 c_~var_1_81~0))) (let ((.cse26 (mod (+ c_~var_1_83~0 .cse138) 4294967296)) (.cse143 (* (- 1) .cse140)) (.cse11 (mod c_~var_1_68~0 4294967296)) (.cse73 (mod (+ .cse139 c_~var_1_68~0) 4294967296)) (.cse31 (* .cse66 4294967295))) (let ((.cse64 (* (div (+ (- 18446744069414584311) .cse31) 4294967296) 4294967296)) (.cse43 (* 4294967295 .cse140)) (.cse34 (* 4294967295 .cse73)) (.cse144 (* .cse11 (- 1))) (.cse4 (mod c_~var_1_35~0 256)) (.cse14 (mod (+ .cse152 (* 255 c_~var_1_13~0)) 256)) (.cse142 (* (div .cse143 4294967296) 4294967296)) (.cse141 (* (- 1) .cse26)) (.cse151 (* (- 1) .cse66)) (.cse87 (mod c_~var_1_32~0 256))) (let ((.cse23 (< .cse27 128)) (.cse47 (< 127 .cse27)) (.cse32 (< .cse27 (+ .cse115 1))) (.cse40 (< .cse115 .cse27)) (.cse116 (+ .cse87 1)) (.cse67 (* (div .cse151 4294967296) 4294967296)) (.cse72 (* (- 1) .cse73)) (.cse48 (< .cse11 (+ (* 4294967296 (div (+ .cse141 .cse11 (- 1) .cse143) 4294967296)) .cse140 4294967296))) (.cse49 (< .cse11 (+ .cse142 .cse140 4294967297 .cse87))) (.cse74 (* (- 1) .cse87)) (.cse121 (+ .cse4 .cse14)) (.cse145 (* 4294967296 (div (+ (- 1) .cse66 .cse144) 4294967296))) (.cse86 (* 4294967296 (div (+ .cse66 .cse26 .cse144) 4294967296))) (.cse70 (* (div (+ .cse34 (- 18446744069414584311)) 4294967296) 4294967296)) (.cse77 (* 4294967296 (div (+ .cse43 (- 18446744069414584311)) 4294967296))) (.cse28 (+ 18446744069414584319 .cse64)) (.cse12 (mod c_~var_1_16~0 256)) (.cse13 (+ 256 c_~last_1_var_1_27~0)) (.cse5 (mod c_~last_1_var_1_27~0 65536)) (.cse122 (* (div (+ .cse141 .cse151 .cse11 (- 1)) 4294967296) 4294967296))) (let ((.cse55 (< .cse11 (+ .cse66 4294967297 .cse87 .cse122))) (.cse22 (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse148 (* v_z_132 65535)) (.cse149 (* 65536 v_y_132)) (.cse150 (+ .cse5 v_z_132))) (or (< .cse28 (+ .cse148 .cse149 .cse31)) (< .cse150 65536) (< (+ .cse4 .cse5 v_z_132) 65537) (< (+ .cse148 .cse149) .cse12) (< .cse13 (+ .cse148 .cse149 .cse14)) (< 65535 v_z_132) (< 98303 .cse150))))) (.cse21 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse146 (* v_z_133 65535)) (.cse147 (* 65536 v_y_133))) (or (< .cse28 (+ .cse146 .cse31 .cse147)) (< 65535 (+ .cse5 v_z_133)) (< .cse13 (+ .cse146 .cse14 .cse147)) (< (+ .cse4 .cse5 v_z_133) 65537) (< v_z_133 0) (< (+ .cse146 .cse147) .cse12))))) (.cse41 (+ 18446744069414584319 .cse77)) (.cse33 (+ 18446744069414584319 .cse70)) (.cse20 (< .cse86 .cse66)) (.cse24 (< (+ .cse66 .cse26) (+ .cse11 4294967296 .cse145))) (.cse25 (< .cse66 (+ 4294967297 .cse145))) (.cse38 (< (+ .cse11 (* (div (+ .cse26 .cse144 .cse73) 4294967296) 4294967296)) (+ .cse87 .cse73 1))) (.cse46 (< (+ .cse11 (* (div (+ .cse140 .cse26 .cse144) 4294967296) 4294967296)) (+ .cse140 .cse87 1))) (.cse62 (< .cse121 257)) (.cse78 (+ .cse43 c_~last_1_var_1_27~0)) (.cse79 (and (or .cse48 .cse49) (or (< (+ .cse142 .cse140 .cse26) .cse11) (< (+ .cse140 (* (div (+ .cse11 .cse143 4294967295 .cse74) 4294967296) 4294967296)) 1)))) (.cse71 (+ .cse34 c_~last_1_var_1_27~0)) (.cse104 (< .cse66 1)) (.cse65 (+ c_~last_1_var_1_27~0 .cse31)) (.cse105 (+ .cse12 .cse14)) (.cse63 (< (+ .cse0 18446744069414584319 .cse64) .cse31)) (.cse52 (< .cse11 (+ (* 4294967296 (div (+ .cse141 .cse11 (- 1) .cse72) 4294967296)) 4294967297 .cse87 .cse73))) (.cse69 (< (+ .cse0 18446744069414584319 .cse70) .cse34)) (.cse39 (< .cse73 1)) (.cse75 (< (+ 18446744069414584320 .cse77) .cse43)) (.cse76 (< .cse140 1)) (.cse68 (<= (+ .cse66 .cse26 1 .cse67) .cse11)) (.cse1 (< .cse26 .cse116)) (.cse10 (+ .cse26 1)) (.cse18 (+ 4294967297 .cse26)) (.cse2 (and (or .cse23 (not (= (mod (+ .cse137 c_~var_1_83~0 256 .cse138) 4294967296) 0))) (or .cse47 (and (or .cse32 (not (= (mod (+ .cse139 c_~var_1_83~0 .cse138) 4294967296) 0))) (or .cse40 (not (= (mod (+ .cse137 c_~var_1_83~0 .cse138) 4294967296) 0)))))))) (and (or .cse1 .cse2 (and (forall ((v_z_132 Int)) (let ((.cse3 (+ .cse5 v_z_132))) (or (< .cse3 65536) (< (+ .cse4 .cse5 v_z_132) 65537) (forall ((v_y_132 Int)) (let ((.cse8 (* v_z_132 65535)) (.cse9 (* 65536 v_y_132))) (or (forall ((v_y_239 Int) (v_z_239 Int)) (let ((.cse7 (+ (* 4294967295 v_z_239) (* v_y_239 4294967296))) (.cse6 (+ .cse11 v_z_239))) (or (< v_z_239 0) (< 4294967295 .cse6) (< .cse7 (+ .cse8 .cse9 1)) (< 9 .cse7) (< .cse6 .cse10)))) (< (+ .cse8 .cse9) .cse12) (< .cse13 (+ .cse8 .cse9 .cse14))))) (< 65535 v_z_132) (< 98303 .cse3)))) (forall ((v_z_132 Int)) (let ((.cse19 (+ .cse5 v_z_132))) (or (forall ((v_y_132 Int)) (let ((.cse16 (* v_z_132 65535)) (.cse17 (* 65536 v_y_132))) (or (forall ((v_y_239 Int) (v_z_239 Int)) (let ((.cse15 (+ (* 4294967295 v_z_239) (* v_y_239 4294967296)))) (or (< 4294967295 v_z_239) (< .cse15 (+ .cse16 .cse17 1)) (< 9 .cse15) (< (+ .cse11 v_z_239) .cse18)))) (< (+ .cse16 .cse17) .cse12) (< .cse13 (+ .cse16 .cse17 .cse14))))) (< .cse19 65536) (< (+ .cse4 .cse5 v_z_132) 65537) (< 65535 v_z_132) (< 98303 .cse19)))))) (or .cse20 .cse21) (or .cse22 .cse23 .cse24 .cse25) (or .cse23 (< .cse26 (+ .cse27 4294967040)) (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse29 (* v_z_132 65535)) (.cse30 (* 65536 v_y_132))) (or (< (+ .cse4 .cse5 v_z_132) 1) (< .cse28 (+ .cse29 .cse30 .cse31)) (< 32767 (+ .cse5 v_z_132)) (< v_z_132 0) (< (+ .cse29 .cse30) .cse12) (< .cse13 (+ .cse29 .cse30 .cse14)))))) (or (and (or .cse32 (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse35 (* v_z_132 65535)) (.cse36 (* 65536 v_y_132)) (.cse37 (+ .cse5 v_z_132))) (or (< .cse33 (+ .cse34 .cse35 .cse36)) (< .cse37 65536) (< (+ .cse4 .cse5 v_z_132) 65537) (< (+ .cse35 .cse36) .cse12) (< .cse13 (+ .cse35 .cse36 .cse14)) (< 65535 v_z_132) (< 98303 .cse37)))) .cse38 .cse39) (or .cse40 (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse42 (* v_z_132 65535)) (.cse44 (* 65536 v_y_132)) (.cse45 (+ .cse5 v_z_132))) (or (< .cse41 (+ .cse42 .cse43 .cse44)) (< .cse45 65536) (< (+ .cse4 .cse5 v_z_132) 65537) (< (+ .cse42 .cse44) .cse12) (< .cse13 (+ .cse42 .cse44 .cse14)) (< 65535 v_z_132) (< 98303 .cse45)))) .cse46)) .cse47) (or .cse47 (and (or .cse40 .cse48 .cse49 (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse50 (* v_z_132 65535)) (.cse51 (* 65536 v_y_132))) (or (< (+ .cse4 .cse5 v_z_132) 1) (< 32767 (+ .cse5 v_z_132)) (< .cse41 (+ .cse50 .cse43 .cse51)) (< v_z_132 0) (< (+ .cse50 .cse51) .cse12) (< .cse13 (+ .cse50 .cse51 .cse14)))))) (or .cse32 .cse52 (forall ((v_z_132 Int) (v_y_132 Int)) (let ((.cse53 (* v_z_132 65535)) (.cse54 (* 65536 v_y_132))) (or (< (+ .cse4 .cse5 v_z_132) 1) (< .cse33 (+ .cse34 .cse53 .cse54)) (< 32767 (+ .cse5 v_z_132)) (< v_z_132 0) (< (+ .cse53 .cse54) .cse12) (< .cse13 (+ .cse53 .cse54 .cse14))))) .cse39))) (or .cse23 .cse55 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse56 (* v_z_133 65535)) (.cse57 (* 65536 v_y_133))) (or (< .cse28 (+ .cse56 .cse31 .cse57)) (< .cse13 (+ .cse56 .cse14 .cse57)) (< (+ .cse4 .cse5 v_z_133) 131073) (< 65535 v_z_133) (< (+ .cse56 .cse57) .cse12))))) (or (and (or .cse32 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse58 (* v_z_133 65535)) (.cse59 (* 65536 v_y_133))) (or (< 65535 (+ .cse5 v_z_133)) (< .cse13 (+ .cse58 .cse14 .cse59)) (< (+ .cse4 .cse5 v_z_133) 65537) (< .cse33 (+ .cse58 .cse34 .cse59)) (< v_z_133 0) (< (+ .cse58 .cse59) .cse12)))) .cse38 .cse39) (or .cse40 .cse46 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse60 (* v_z_133 65535)) (.cse61 (* 65536 v_y_133))) (or (< 65535 (+ .cse5 v_z_133)) (< .cse41 (+ .cse60 .cse43 .cse61)) (< .cse13 (+ .cse60 .cse14 .cse61)) (< (+ .cse4 .cse5 v_z_133) 65537) (< v_z_133 0) (< (+ .cse60 .cse61) .cse12)))))) .cse47) (or .cse62 (and (or .cse23 .cse63 (< (+ 18446744069414584062 .cse64 .cse14) .cse65) (and (or .cse55 (< .cse11 (+ .cse66 4294967296 .cse67))) .cse68)) (or .cse47 (and (or .cse32 .cse69 (< (+ 18446744069414584062 .cse70 .cse14) .cse71) (and (or (< .cse11 (+ (* (div .cse72 4294967296) 4294967296) 4294967296 .cse73)) .cse52) (<= (+ (* (div (+ .cse11 .cse72 4294967295 .cse74) 4294967296) 4294967296) .cse26 .cse73) (+ .cse11 4294967295))) .cse39) (or .cse75 .cse76 .cse40 (< (+ 18446744069414584062 .cse77 .cse14) .cse78) .cse79))) (or (let ((.cse83 (+ c_~last_1_var_1_27~0 258))) (and (forall ((v_z_142 Int) (v_y_142 Int)) (let ((.cse80 (+ .cse11 v_z_142)) (.cse81 (* 4294967295 v_z_142)) (.cse82 (* v_y_142 4294967296))) (or (< .cse80 .cse10) (< v_z_142 0) (< 4294967295 .cse80) (< 9 (+ .cse81 .cse82)) (< (+ .cse81 .cse0 .cse82) 1) (< (+ .cse81 .cse14 .cse82) .cse83)))) (forall ((v_z_142 Int) (v_y_142 Int)) (let ((.cse84 (* 4294967295 v_z_142)) (.cse85 (* v_y_142 4294967296))) (or (< (+ .cse11 v_z_142) .cse18) (< 4294967295 v_z_142) (< 9 (+ .cse84 .cse85)) (< (+ .cse84 .cse0 .cse85) 1) (< (+ .cse84 .cse14 .cse85) .cse83)))))) .cse1 .cse2))) (or .cse22 .cse20) (or .cse23 (< (+ .cse11 .cse86) (+ .cse66 .cse87 1)) .cse21) (or (and (or .cse40 .cse46 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse88 (* v_z_133 65535)) (.cse89 (* 65536 v_y_133))) (or (< .cse41 (+ .cse88 .cse43 .cse89)) (< .cse13 (+ .cse88 .cse14 .cse89)) (< (+ .cse4 .cse5 v_z_133) 131073) (< 65535 v_z_133) (< (+ .cse88 .cse89) .cse12))))) (or .cse32 (forall ((v_z_133 Int) (v_y_133 Int)) (let ((.cse90 (* v_z_133 65535)) (.cse91 (* 65536 v_y_133))) (or (< .cse13 (+ .cse90 .cse14 .cse91)) (< (+ .cse4 .cse5 v_z_133) 131073) (< .cse33 (+ .cse90 .cse34 .cse91)) (< 65535 v_z_133) (< (+ .cse90 .cse91) .cse12)))) .cse38 .cse39)) .cse47) (or (and (forall ((v_z_133 Int)) (or (< (+ .cse4 .cse5 v_z_133) 131073) (< 65535 v_z_133) (forall ((v_y_133 Int)) (let ((.cse94 (* v_z_133 65535)) (.cse95 (* 65536 v_y_133))) (or (forall ((v_y_183 Int) (v_z_183 Int)) (let ((.cse92 (+ .cse11 v_z_183)) (.cse93 (+ (* 4294967295 v_z_183) (* v_y_183 4294967296)))) (or (< 4294967295 .cse92) (< .cse93 (+ .cse94 .cse95 1)) (< v_z_183 0) (< .cse92 .cse10) (< 9 .cse93)))) (< .cse13 (+ .cse94 .cse14 .cse95)) (< (+ .cse94 .cse95) .cse12)))))) (forall ((v_z_133 Int)) (or (< (+ .cse4 .cse5 v_z_133) 131073) (< 65535 v_z_133) (forall ((v_y_133 Int)) (let ((.cse97 (* v_z_133 65535)) (.cse98 (* 65536 v_y_133))) (or (forall ((v_y_183 Int) (v_z_183 Int)) (let ((.cse96 (+ (* 4294967295 v_z_183) (* v_y_183 4294967296)))) (or (< (+ .cse11 v_z_183) .cse18) (< .cse96 (+ .cse97 .cse98 1)) (< 4294967295 v_z_183) (< 9 .cse96)))) (< .cse13 (+ .cse97 .cse14 .cse98)) (< (+ .cse97 .cse98) .cse12))))))) .cse1 .cse2) (or (and (or .cse1 .cse2 (and (forall ((v_z_222 Int) (v_y_222 Int)) (let ((.cse99 (* 4294967295 v_z_222)) (.cse100 (* v_y_222 4294967296))) (or (< 9 (+ .cse99 .cse100)) (< (+ .cse0 .cse99 .cse100) 1) (< 4294967295 v_z_222) (< (+ .cse11 v_z_222) .cse18)))) (forall ((v_z_222 Int) (v_y_222 Int)) (let ((.cse101 (* 4294967295 v_z_222)) (.cse102 (* v_y_222 4294967296)) (.cse103 (+ .cse11 v_z_222))) (or (< v_z_222 0) (< 9 (+ .cse101 .cse102)) (< (+ .cse0 .cse101 .cse102) 1) (< 4294967295 .cse103) (< .cse103 .cse10)))))) (or .cse63 .cse104 .cse20) (or .cse23 .cse63 .cse24 .cse25) (or (and (or .cse32 .cse69 .cse38 .cse39) (or .cse75 .cse76 .cse40 .cse46)) .cse47)) (< (+ .cse0 .cse12) 1) (and (or (< .cse105 (+ 257 c_~last_1_var_1_27~0)) .cse62) (or (< .cse13 .cse105) (let ((.cse107 (mod (+ c_~last_1_var_1_27~0 (* .cse12 65535)) 65536))) (let ((.cse106 (+ .cse4 .cse107))) (and (<= .cse106 65536) (or (< 32767 .cse107) (< .cse106 1)))))))) (or (< 127 .cse14) (let ((.cse117 (and .cse68 (<= .cse11 (+ .cse66 .cse87 .cse122 4294967296)))) (.cse108 (< .cse121 1))) (and (or .cse108 (and (or .cse1 .cse2 (let ((.cse111 (+ 2 c_~last_1_var_1_27~0))) (and (forall ((v_y_260 Int) (v_z_260 Int)) (let ((.cse109 (* v_y_260 4294967296)) (.cse110 (* 4294967295 v_z_260))) (or (< (+ .cse14 .cse109 .cse110) .cse111) (< (+ .cse11 v_z_260) .cse18) (< (+ .cse0 .cse109 .cse110) 1) (< 9 (+ .cse109 .cse110)) (< 4294967295 v_z_260)))) (forall ((v_y_260 Int) (v_z_260 Int)) (let ((.cse112 (+ .cse11 v_z_260)) (.cse113 (* v_y_260 4294967296)) (.cse114 (* 4294967295 v_z_260))) (or (< 4294967295 .cse112) (< (+ .cse14 .cse113 .cse114) .cse111) (< .cse112 .cse10) (< (+ .cse0 .cse113 .cse114) 1) (< 9 (+ .cse113 .cse114)) (< v_z_260 0))))))) (or .cse47 (and (or .cse75 (< (+ 18446744069414584318 .cse77 .cse14) .cse78) .cse76 .cse40 .cse79) (or .cse32 .cse69 (< .cse26 .cse115) .cse39 (< (+ 18446744069414584318 .cse70 .cse14) .cse71) (< .cse115 .cse116)))) (or .cse23 .cse63 .cse104 (< (+ 18446744069414584318 .cse64 .cse14) .cse65) .cse117))) (or (< .cse105 (+ c_~last_1_var_1_27~0 1)) (and (or .cse23 .cse63 .cse117) (or .cse47 (and (or .cse32 .cse52 .cse69 .cse39) (or .cse75 (< .cse27 .cse116) .cse76 .cse40 (< .cse26 .cse27)))) (or .cse1 .cse2 (and (forall ((v_y_280 Int) (v_z_280 Int)) (let ((.cse118 (* v_y_280 4294967296)) (.cse119 (* 4294967295 v_z_280))) (or (< 9 (+ .cse118 .cse119)) (< (+ .cse0 .cse118 .cse119) 1) (< 4294967295 (+ .cse11 v_z_280)) (< v_z_280 0)))) (forall ((v_y_280 Int) (v_z_280 Int)) (let ((.cse120 (+ (* v_y_280 4294967296) (* 4294967295 v_z_280)))) (or (< 9 .cse120) (< 4294967295 v_z_280) (< (+ .cse11 v_z_280) .cse18) (< .cse120 0))))))) .cse108)))) (or .cse1 .cse2 (and (forall ((v_z_133 Int)) (or (< 65535 (+ .cse5 v_z_133)) (< (+ .cse4 .cse5 v_z_133) 65537) (forall ((v_y_133 Int)) (let ((.cse123 (* v_z_133 65535)) (.cse124 (* 65536 v_y_133))) (or (< .cse13 (+ .cse123 .cse14 .cse124)) (forall ((v_y_294 Int) (v_z_294 Int)) (let ((.cse125 (+ .cse11 v_z_294)) (.cse126 (+ (* v_y_294 4294967296) (* 4294967295 v_z_294)))) (or (< v_z_294 0) (< .cse125 .cse10) (< 4294967295 .cse125) (< .cse126 (+ .cse123 .cse124 1)) (< 9 .cse126)))) (< (+ .cse123 .cse124) .cse12)))) (< v_z_133 0))) (forall ((v_z_133 Int)) (or (< 65535 (+ .cse5 v_z_133)) (< (+ .cse4 .cse5 v_z_133) 65537) (forall ((v_y_133 Int)) (let ((.cse127 (* v_z_133 65535)) (.cse128 (* 65536 v_y_133))) (or (< .cse13 (+ .cse127 .cse14 .cse128)) (forall ((v_y_294 Int) (v_z_294 Int)) (let ((.cse129 (+ (* v_y_294 4294967296) (* 4294967295 v_z_294)))) (or (< .cse129 (+ .cse127 .cse128 1)) (< 9 .cse129) (< 4294967295 v_z_294) (< (+ .cse11 v_z_294) .cse18)))) (< (+ .cse127 .cse128) .cse12)))) (< v_z_133 0))))) (or .cse1 (and (forall ((v_z_132 Int)) (or (forall ((v_y_132 Int)) (let ((.cse131 (* v_z_132 65535)) (.cse132 (* 65536 v_y_132))) (or (forall ((v_z_186 Int) (v_y_186 Int)) (let ((.cse130 (+ (* v_y_186 4294967296) (* 4294967295 v_z_186))) (.cse133 (+ .cse11 v_z_186))) (or (< v_z_186 0) (< .cse130 (+ .cse131 .cse132 1)) (< 9 .cse130) (< .cse133 .cse10) (< 4294967295 .cse133)))) (< (+ .cse131 .cse132) .cse12) (< .cse13 (+ .cse131 .cse132 .cse14))))) (< (+ .cse4 .cse5 v_z_132) 1) (< 32767 (+ .cse5 v_z_132)) (< v_z_132 0))) (forall ((v_z_132 Int)) (or (< (+ .cse4 .cse5 v_z_132) 1) (< 32767 (+ .cse5 v_z_132)) (< v_z_132 0) (forall ((v_y_132 Int)) (let ((.cse135 (* v_z_132 65535)) (.cse136 (* 65536 v_y_132))) (or (forall ((v_z_186 Int) (v_y_186 Int)) (let ((.cse134 (+ (* v_y_186 4294967296) (* 4294967295 v_z_186)))) (or (< (+ .cse11 v_z_186) .cse18) (< .cse134 (+ .cse135 .cse136 1)) (< 9 .cse134) (< 4294967295 v_z_186)))) (< (+ .cse135 .cse136) .cse12) (< .cse13 (+ .cse135 .cse136 .cse14)))))))) .cse2)))))))))))) is different from true [2023-11-29 02:36:34,451 WARN L293 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:37:42,564 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 02:38:40,663 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)