./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/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_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/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 64bit --witnessprinter.graph.data.programhash 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:35:39,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:35:40,020 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 03:35:40,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:35:40,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:35:40,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:35:40,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:35:40,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:35:40,052 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:35:40,053 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:35:40,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:35:40,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:35:40,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:35:40,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:35:40,055 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:35:40,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:35:40,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:35:40,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:35:40,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:35:40,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:35:40,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:35:40,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:35:40,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:35:40,060 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:35:40,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:35:40,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:35:40,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:35:40,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:35:40,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:35:40,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:35:40,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:35:40,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:35:40,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:35:40,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:35:40,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:35:40,064 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:35:40,064 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:35:40,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:35:40,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:35:40,065 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_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 [2023-11-29 03:35:40,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:35:40,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:35:40,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:35:40,304 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:35:40,304 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:35:40,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2023-11-29 03:35:43,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:35:43,358 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:35:43,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2023-11-29 03:35:43,378 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/data/024978017/3152bb599013490bbe0e79885a75dba5/FLAG3d19958df [2023-11-29 03:35:43,389 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/data/024978017/3152bb599013490bbe0e79885a75dba5 [2023-11-29 03:35:43,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:35:43,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:35:43,393 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:35:43,393 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:35:43,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:35:43,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:35:43" (1/1) ... [2023-11-29 03:35:43,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4109d7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:43, skipping insertion in model container [2023-11-29 03:35:43,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:35:43" (1/1) ... [2023-11-29 03:35:43,465 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:35:43,628 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_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2023-11-29 03:35:44,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:35:44,061 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:35:44,072 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_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2023-11-29 03:35:44,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:35:44,267 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:35:44,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44 WrapperNode [2023-11-29 03:35:44,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:35:44,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:35:44,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:35:44,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:35:44,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:44,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:44,976 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6059 [2023-11-29 03:35:44,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:35:44,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:35:44,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:35:44,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:35:44,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:44,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:45,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:45,222 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:35:45,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:45,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:45,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:45,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:45,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:45,454 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:45,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:35:45,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:35:45,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:35:45,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:35:45,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (1/1) ... [2023-11-29 03:35:45,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:35:45,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:35:45,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:35:45,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:35:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:35:45,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:35:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:35:45,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:35:45,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:35:45,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:35:46,073 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:35:46,075 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:35:49,650 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:35:49,783 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:35:49,783 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:35:49,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:35:49 BoogieIcfgContainer [2023-11-29 03:35:49,784 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:35:49,787 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:35:49,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:35:49,790 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:35:49,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:35:43" (1/3) ... [2023-11-29 03:35:49,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1296905d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:35:49, skipping insertion in model container [2023-11-29 03:35:49,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:35:44" (2/3) ... [2023-11-29 03:35:49,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1296905d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:35:49, skipping insertion in model container [2023-11-29 03:35:49,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:35:49" (3/3) ... [2023-11-29 03:35:49,793 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vsa16.c [2023-11-29 03:35:49,811 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:35:49,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:35:49,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:35:49,896 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;@3e57ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:35:49,896 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:35:49,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 1075 states, 1068 states have (on average 1.6638576779026217) internal successors, (1777), 1069 states have internal predecessors, (1777), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:35:49,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 03:35:49,915 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:49,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:35:49,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:49,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:49,921 INFO L85 PathProgramCache]: Analyzing trace with hash -702484414, now seen corresponding path program 1 times [2023-11-29 03:35:49,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:49,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404850409] [2023-11-29 03:35:49,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:49,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:50,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:50,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:50,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404850409] [2023-11-29 03:35:50,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404850409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:50,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:50,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:35:50,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512979159] [2023-11-29 03:35:50,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:50,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:35:50,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:50,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:35:50,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:35:50,563 INFO L87 Difference]: Start difference. First operand has 1075 states, 1068 states have (on average 1.6638576779026217) internal successors, (1777), 1069 states have internal predecessors, (1777), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:50,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:50,855 INFO L93 Difference]: Finished difference Result 3141 states and 5229 transitions. [2023-11-29 03:35:50,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:35:50,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-11-29 03:35:50,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:50,882 INFO L225 Difference]: With dead ends: 3141 [2023-11-29 03:35:50,882 INFO L226 Difference]: Without dead ends: 2106 [2023-11-29 03:35:50,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:35:50,893 INFO L413 NwaCegarLoop]: 3408 mSDtfsCounter, 1707 mSDsluCounter, 11990 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1711 SdHoareTripleChecker+Valid, 15398 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:50,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1711 Valid, 15398 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:35:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2023-11-29 03:35:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 1079. [2023-11-29 03:35:50,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1071 states have (on average 1.6591970121381887) internal successors, (1777), 1072 states have internal predecessors, (1777), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:35:50,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1787 transitions. [2023-11-29 03:35:50,992 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1787 transitions. Word has length 42 [2023-11-29 03:35:50,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:50,993 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1787 transitions. [2023-11-29 03:35:50,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1787 transitions. [2023-11-29 03:35:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 03:35:50,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:50,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:35:50,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:35:50,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:50,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:50,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1978916658, now seen corresponding path program 1 times [2023-11-29 03:35:50,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:50,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39925912] [2023-11-29 03:35:50,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:50,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:51,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:51,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39925912] [2023-11-29 03:35:51,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39925912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:51,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:51,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:35:51,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306748882] [2023-11-29 03:35:51,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:51,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:35:51,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:51,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:35:51,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:35:51,197 INFO L87 Difference]: Start difference. First operand 1079 states and 1787 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:51,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:51,274 INFO L93 Difference]: Finished difference Result 2121 states and 3512 transitions. [2023-11-29 03:35:51,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:35:51,275 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2023-11-29 03:35:51,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:51,283 INFO L225 Difference]: With dead ends: 2121 [2023-11-29 03:35:51,283 INFO L226 Difference]: Without dead ends: 1082 [2023-11-29 03:35:51,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:35:51,286 INFO L413 NwaCegarLoop]: 1778 mSDtfsCounter, 1 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5327 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:51,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5327 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:35:51,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2023-11-29 03:35:51,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1081. [2023-11-29 03:35:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1073 states have (on average 1.657968313140727) internal successors, (1779), 1074 states have internal predecessors, (1779), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:35:51,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1789 transitions. [2023-11-29 03:35:51,320 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1789 transitions. Word has length 43 [2023-11-29 03:35:51,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:51,320 INFO L495 AbstractCegarLoop]: Abstraction has 1081 states and 1789 transitions. [2023-11-29 03:35:51,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:51,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1789 transitions. [2023-11-29 03:35:51,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 03:35:51,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:51,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:35:51,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:35:51,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:51,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:51,323 INFO L85 PathProgramCache]: Analyzing trace with hash -296848038, now seen corresponding path program 1 times [2023-11-29 03:35:51,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:51,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691821989] [2023-11-29 03:35:51,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:51,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:51,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:51,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691821989] [2023-11-29 03:35:51,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691821989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:51,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:51,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:35:51,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784919329] [2023-11-29 03:35:51,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:51,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:35:51,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:51,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:35:51,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:35:51,613 INFO L87 Difference]: Start difference. First operand 1081 states and 1789 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:51,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:51,810 INFO L93 Difference]: Finished difference Result 3153 states and 5227 transitions. [2023-11-29 03:35:51,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:35:51,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-11-29 03:35:51,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:51,823 INFO L225 Difference]: With dead ends: 3153 [2023-11-29 03:35:51,823 INFO L226 Difference]: Without dead ends: 2112 [2023-11-29 03:35:51,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:35:51,826 INFO L413 NwaCegarLoop]: 1844 mSDtfsCounter, 5062 mSDsluCounter, 3614 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5066 SdHoareTripleChecker+Valid, 5458 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:51,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5066 Valid, 5458 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:35:51,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2112 states. [2023-11-29 03:35:51,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2112 to 1084. [2023-11-29 03:35:51,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1076 states have (on average 1.6561338289962826) internal successors, (1782), 1077 states have internal predecessors, (1782), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:35:51,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1792 transitions. [2023-11-29 03:35:51,869 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1792 transitions. Word has length 44 [2023-11-29 03:35:51,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:51,869 INFO L495 AbstractCegarLoop]: Abstraction has 1084 states and 1792 transitions. [2023-11-29 03:35:51,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:51,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1792 transitions. [2023-11-29 03:35:51,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 03:35:51,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:51,871 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:35:51,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:35:51,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:51,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:51,872 INFO L85 PathProgramCache]: Analyzing trace with hash 383210332, now seen corresponding path program 1 times [2023-11-29 03:35:51,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:51,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990749715] [2023-11-29 03:35:51,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:51,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:52,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:52,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990749715] [2023-11-29 03:35:52,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990749715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:52,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:52,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:35:52,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584237244] [2023-11-29 03:35:52,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:52,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:35:52,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:52,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:35:52,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:35:52,323 INFO L87 Difference]: Start difference. First operand 1084 states and 1792 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:53,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:53,613 INFO L93 Difference]: Finished difference Result 2139 states and 3535 transitions. [2023-11-29 03:35:53,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:35:53,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-11-29 03:35:53,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:53,621 INFO L225 Difference]: With dead ends: 2139 [2023-11-29 03:35:53,621 INFO L226 Difference]: Without dead ends: 1095 [2023-11-29 03:35:53,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:35:53,624 INFO L413 NwaCegarLoop]: 1425 mSDtfsCounter, 3435 mSDsluCounter, 4345 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3435 SdHoareTripleChecker+Valid, 5770 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:53,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3435 Valid, 5770 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:35:53,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2023-11-29 03:35:53,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1084. [2023-11-29 03:35:53,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1076 states have (on average 1.6552044609665428) internal successors, (1781), 1077 states have internal predecessors, (1781), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:35:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1791 transitions. [2023-11-29 03:35:53,663 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1791 transitions. Word has length 44 [2023-11-29 03:35:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:53,663 INFO L495 AbstractCegarLoop]: Abstraction has 1084 states and 1791 transitions. [2023-11-29 03:35:53,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:53,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1791 transitions. [2023-11-29 03:35:53,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 03:35:53,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:53,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:35:53,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:35:53,665 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:53,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:53,666 INFO L85 PathProgramCache]: Analyzing trace with hash 325952030, now seen corresponding path program 1 times [2023-11-29 03:35:53,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:53,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130868904] [2023-11-29 03:35:53,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:53,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:54,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:54,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130868904] [2023-11-29 03:35:54,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130868904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:54,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:54,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:35:54,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071557685] [2023-11-29 03:35:54,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:54,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:35:54,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:54,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:35:54,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:35:54,561 INFO L87 Difference]: Start difference. First operand 1084 states and 1791 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:55,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:55,005 INFO L93 Difference]: Finished difference Result 4201 states and 6957 transitions. [2023-11-29 03:35:55,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:35:55,006 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-11-29 03:35:55,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:55,024 INFO L225 Difference]: With dead ends: 4201 [2023-11-29 03:35:55,025 INFO L226 Difference]: Without dead ends: 3157 [2023-11-29 03:35:55,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:35:55,028 INFO L413 NwaCegarLoop]: 3460 mSDtfsCounter, 6780 mSDsluCounter, 10410 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6788 SdHoareTripleChecker+Valid, 13870 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:55,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6788 Valid, 13870 Invalid, 141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:35:55,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2023-11-29 03:35:55,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 1088. [2023-11-29 03:35:55,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 1080 states have (on average 1.6537037037037037) internal successors, (1786), 1081 states have internal predecessors, (1786), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:35:55,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1796 transitions. [2023-11-29 03:35:55,087 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1796 transitions. Word has length 44 [2023-11-29 03:35:55,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:55,088 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1796 transitions. [2023-11-29 03:35:55,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:55,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1796 transitions. [2023-11-29 03:35:55,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 03:35:55,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:55,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:35:55,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:35:55,090 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:55,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:55,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1909082342, now seen corresponding path program 1 times [2023-11-29 03:35:55,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:55,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133999733] [2023-11-29 03:35:55,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:55,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:35:55,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:35:55,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:35:55,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133999733] [2023-11-29 03:35:55,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133999733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:35:55,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:35:55,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:35:55,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709280131] [2023-11-29 03:35:55,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:35:55,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:35:55,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:35:55,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:35:55,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:35:55,432 INFO L87 Difference]: Start difference. First operand 1088 states and 1796 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:35:55,643 INFO L93 Difference]: Finished difference Result 2149 states and 3546 transitions. [2023-11-29 03:35:55,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:35:55,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-11-29 03:35:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:35:55,649 INFO L225 Difference]: With dead ends: 2149 [2023-11-29 03:35:55,649 INFO L226 Difference]: Without dead ends: 1101 [2023-11-29 03:35:55,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:35:55,652 INFO L413 NwaCegarLoop]: 1774 mSDtfsCounter, 6820 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6820 SdHoareTripleChecker+Valid, 3782 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:35:55,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6820 Valid, 3782 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:35:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2023-11-29 03:35:55,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1083. [2023-11-29 03:35:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 1075 states have (on average 1.6548837209302325) internal successors, (1779), 1076 states have internal predecessors, (1779), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:35:55,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1789 transitions. [2023-11-29 03:35:55,684 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1789 transitions. Word has length 45 [2023-11-29 03:35:55,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:35:55,685 INFO L495 AbstractCegarLoop]: Abstraction has 1083 states and 1789 transitions. [2023-11-29 03:35:55,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:35:55,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1789 transitions. [2023-11-29 03:35:55,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 03:35:55,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:35:55,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:35:55,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:35:55,698 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:35:55,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:35:55,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1229023972, now seen corresponding path program 1 times [2023-11-29 03:35:55,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:35:55,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640526130] [2023-11-29 03:35:55,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:35:55,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:35:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:35:55,748 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:35:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:35:55,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:35:55,857 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:35:55,858 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 03:35:55,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:35:55,864 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:35:55,867 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:35:55,907 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 03:35:55,909 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 03:35:55,909 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-29 03:35:55,910 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-29 03:35:55,911 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-29 03:35:55,911 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 03:35:55,912 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-29 03:35:55,912 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-29 03:35:55,913 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-29 03:35:55,914 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-29 03:35:55,914 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-29 03:35:55,915 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-29 03:35:55,916 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-29 03:35:55,916 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-29 03:35:55,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated [2023-11-29 03:35:55,917 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-29 03:35:55,918 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-29 03:35:55,919 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated [2023-11-29 03:35:55,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-29 03:35:55,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-29 03:35:55,921 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-29 03:35:55,921 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-29 03:35:55,922 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated [2023-11-29 03:35:55,923 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated [2023-11-29 03:35:55,923 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet28 could not be translated [2023-11-29 03:35:55,924 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet29 could not be translated [2023-11-29 03:35:55,927 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet117 could not be translated [2023-11-29 03:35:55,928 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet118 could not be translated [2023-11-29 03:35:55,929 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet119 could not be translated [2023-11-29 03:35:55,931 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet120 could not be translated [2023-11-29 03:35:55,931 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet121 could not be translated [2023-11-29 03:35:55,933 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-29 03:35:55,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:35:55 BoogieIcfgContainer [2023-11-29 03:35:55,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:35:55,956 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:35:55,956 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:35:55,956 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:35:55,957 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:35:49" (3/4) ... [2023-11-29 03:35:55,959 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 03:35:55,960 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:35:55,960 INFO L158 Benchmark]: Toolchain (without parser) took 12567.68ms. Allocated memory was 153.1MB in the beginning and 824.2MB in the end (delta: 671.1MB). Free memory was 120.2MB in the beginning and 597.5MB in the end (delta: -477.3MB). Peak memory consumption was 196.0MB. Max. memory is 16.1GB. [2023-11-29 03:35:55,960 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 111.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:35:55,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 874.25ms. Allocated memory is still 153.1MB. Free memory was 119.9MB in the beginning and 67.1MB in the end (delta: 52.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-29 03:35:55,961 INFO L158 Benchmark]: Boogie Procedure Inliner took 708.55ms. Allocated memory was 153.1MB in the beginning and 218.1MB in the end (delta: 65.0MB). Free memory was 67.1MB in the beginning and 90.3MB in the end (delta: -23.3MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. [2023-11-29 03:35:55,962 INFO L158 Benchmark]: Boogie Preprocessor took 574.13ms. Allocated memory was 218.1MB in the beginning and 364.9MB in the end (delta: 146.8MB). Free memory was 90.3MB in the beginning and 204.9MB in the end (delta: -114.5MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2023-11-29 03:35:55,962 INFO L158 Benchmark]: RCFGBuilder took 4232.26ms. Allocated memory was 364.9MB in the beginning and 520.1MB in the end (delta: 155.2MB). Free memory was 203.8MB in the beginning and 131.7MB in the end (delta: 72.1MB). Peak memory consumption was 232.6MB. Max. memory is 16.1GB. [2023-11-29 03:35:55,962 INFO L158 Benchmark]: TraceAbstraction took 6168.62ms. Allocated memory was 520.1MB in the beginning and 824.2MB in the end (delta: 304.1MB). Free memory was 131.7MB in the beginning and 598.6MB in the end (delta: -466.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:35:55,963 INFO L158 Benchmark]: Witness Printer took 3.57ms. Allocated memory is still 824.2MB. Free memory was 598.6MB in the beginning and 597.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:35:55,964 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 74.5MB in the beginning and 74.4MB in the end (delta: 111.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 874.25ms. Allocated memory is still 153.1MB. Free memory was 119.9MB in the beginning and 67.1MB in the end (delta: 52.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 708.55ms. Allocated memory was 153.1MB in the beginning and 218.1MB in the end (delta: 65.0MB). Free memory was 67.1MB in the beginning and 90.3MB in the end (delta: -23.3MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 574.13ms. Allocated memory was 218.1MB in the beginning and 364.9MB in the end (delta: 146.8MB). Free memory was 90.3MB in the beginning and 204.9MB in the end (delta: -114.5MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. * RCFGBuilder took 4232.26ms. Allocated memory was 364.9MB in the beginning and 520.1MB in the end (delta: 155.2MB). Free memory was 203.8MB in the beginning and 131.7MB in the end (delta: 72.1MB). Peak memory consumption was 232.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6168.62ms. Allocated memory was 520.1MB in the beginning and 824.2MB in the end (delta: 304.1MB). Free memory was 131.7MB in the beginning and 598.6MB in the end (delta: -466.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.57ms. Allocated memory is still 824.2MB. Free memory was 598.6MB in the beginning and 597.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet29 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet117 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet118 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet119 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet120 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet121 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 344. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 12); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (12 - 1); [L35] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L36] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L38] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 3); [L39] const SORT_37 msb_SORT_37 = (SORT_37)1 << (3 - 1); [L41] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 2); [L42] const SORT_44 msb_SORT_44 = (SORT_44)1 << (2 - 1); [L44] const SORT_295 mask_SORT_295 = (SORT_295)-1 >> (sizeof(SORT_295) * 8 - 4); [L45] const SORT_295 msb_SORT_295 = (SORT_295)1 << (4 - 1); [L47] const SORT_297 mask_SORT_297 = (SORT_297)-1 >> (sizeof(SORT_297) * 8 - 5); [L48] const SORT_297 msb_SORT_297 = (SORT_297)1 << (5 - 1); [L50] const SORT_299 mask_SORT_299 = (SORT_299)-1 >> (sizeof(SORT_299) * 8 - 6); [L51] const SORT_299 msb_SORT_299 = (SORT_299)1 << (6 - 1); [L53] const SORT_301 mask_SORT_301 = (SORT_301)-1 >> (sizeof(SORT_301) * 8 - 7); [L54] const SORT_301 msb_SORT_301 = (SORT_301)1 << (7 - 1); [L56] const SORT_303 mask_SORT_303 = (SORT_303)-1 >> (sizeof(SORT_303) * 8 - 8); [L57] const SORT_303 msb_SORT_303 = (SORT_303)1 << (8 - 1); [L59] const SORT_305 mask_SORT_305 = (SORT_305)-1 >> (sizeof(SORT_305) * 8 - 9); [L60] const SORT_305 msb_SORT_305 = (SORT_305)1 << (9 - 1); [L62] const SORT_307 mask_SORT_307 = (SORT_307)-1 >> (sizeof(SORT_307) * 8 - 10); [L63] const SORT_307 msb_SORT_307 = (SORT_307)1 << (10 - 1); [L65] const SORT_309 mask_SORT_309 = (SORT_309)-1 >> (sizeof(SORT_309) * 8 - 11); [L66] const SORT_309 msb_SORT_309 = (SORT_309)1 << (11 - 1); [L68] const SORT_312 mask_SORT_312 = (SORT_312)-1 >> (sizeof(SORT_312) * 8 - 13); [L69] const SORT_312 msb_SORT_312 = (SORT_312)1 << (13 - 1); [L71] const SORT_314 mask_SORT_314 = (SORT_314)-1 >> (sizeof(SORT_314) * 8 - 14); [L72] const SORT_314 msb_SORT_314 = (SORT_314)1 << (14 - 1); [L74] const SORT_316 mask_SORT_316 = (SORT_316)-1 >> (sizeof(SORT_316) * 8 - 15); [L75] const SORT_316 msb_SORT_316 = (SORT_316)1 << (15 - 1); [L77] const SORT_533 mask_SORT_533 = (SORT_533)-1 >> (sizeof(SORT_533) * 8 - 17); [L78] const SORT_533 msb_SORT_533 = (SORT_533)1 << (17 - 1); [L80] const SORT_6 var_7 = 0; [L81] const SORT_11 var_13 = 0; [L82] const SORT_3 var_21 = 0; [L83] const SORT_1 var_26 = 0; [L84] const SORT_37 var_38 = 0; [L85] const SORT_1 var_57 = 1; [L86] const SORT_37 var_93 = 2; [L87] const SORT_37 var_97 = 1; [L88] const SORT_37 var_105 = 4; [L89] const SORT_37 var_107 = 5; [L90] const SORT_37 var_111 = 3; [L91] const SORT_6 var_128 = 2; [L92] const SORT_44 var_138 = 0; [L93] const SORT_3 var_145 = 65535; [L94] const SORT_297 var_534 = 0; [L95] const SORT_301 var_626 = 5; [L96] const SORT_301 var_630 = 4; [L97] const SORT_301 var_634 = 3; [L98] const SORT_301 var_638 = 2; [L99] const SORT_301 var_642 = 1; [L100] const SORT_301 var_646 = 0; [L102] SORT_1 input_2; [L103] SORT_3 input_4; [L104] SORT_3 input_5; [L105] SORT_6 input_114; [L106] SORT_6 input_115; [L107] SORT_6 input_116; [L108] SORT_3 input_134; [L109] SORT_3 input_135; [L110] SORT_3 input_136; [L111] SORT_3 input_144; [L112] SORT_3 input_153; [L113] SORT_3 input_154; [L114] SORT_3 input_155; [L115] SORT_3 input_158; [L116] SORT_3 input_176; [L117] SORT_3 input_177; [L118] SORT_3 input_178; [L119] SORT_3 input_181; [L120] SORT_3 input_183; [L121] SORT_44 input_197; [L122] SORT_44 input_198; [L123] SORT_44 input_199; [L124] SORT_3 input_529; [L125] SORT_3 input_530; [L126] SORT_3 input_531; [L127] SORT_3 input_532; [L128] SORT_3 input_555; [L129] SORT_3 input_557; [L130] SORT_3 input_559; [L131] SORT_3 input_563; [L132] SORT_3 input_564; [L133] SORT_3 input_565; [L134] SORT_3 input_566; [L135] SORT_3 input_585; [L136] SORT_3 input_589; [L137] SORT_3 input_591; [L138] SORT_3 input_598; [L139] SORT_3 input_600; [L140] SORT_3 input_605; [L141] SORT_3 input_607; [L142] SORT_3 input_611; [L143] SORT_3 input_612; [L144] SORT_3 input_613; [L145] SORT_3 input_614; [L146] SORT_3 input_615; [L147] SORT_3 input_616; [L148] SORT_3 input_617; [L149] SORT_3 input_618; [L150] SORT_3 input_619; [L151] SORT_3 input_620; [L152] SORT_3 input_621; [L153] SORT_3 input_622; [L154] SORT_3 input_629; [L155] SORT_3 input_633; [L156] SORT_3 input_637; [L157] SORT_3 input_641; [L158] SORT_3 input_645; [L159] SORT_3 input_650; [L160] SORT_3 input_656; [L161] SORT_3 input_658; [L162] SORT_3 input_660; [L163] SORT_3 input_662; [L164] SORT_3 input_665; [L165] SORT_3 input_671; [L166] SORT_3 input_673; [L167] SORT_3 input_675; [L168] SORT_3 input_678; [L169] SORT_3 input_684; [L170] SORT_3 input_686; [L171] SORT_3 input_689; [L172] SORT_3 input_695; [L173] SORT_3 input_698; [L174] SORT_3 input_705; [L175] SORT_3 input_710; [L176] SORT_1 input_729; [L177] SORT_1 input_730; [L178] SORT_1 input_731; [L179] SORT_1 input_732; [L180] SORT_1 input_735; [L181] SORT_1 input_737; [L182] SORT_1 input_739; [L183] SORT_1 input_744; [L184] SORT_1 input_746; [L185] SORT_1 input_751; [L186] SORT_3 input_764; [L187] SORT_3 input_765; [L188] SORT_3 input_766; [L190] EXPR __VERIFIER_nondet_ushort() & mask_SORT_6 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L190] SORT_6 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_6; [L191] EXPR __VERIFIER_nondet_ushort() & mask_SORT_6 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L191] SORT_6 state_15 = __VERIFIER_nondet_ushort() & mask_SORT_6; [L192] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L192] SORT_3 state_22 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L193] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L193] SORT_3 state_24 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L194] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L194] SORT_3 state_28 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L195] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L195] SORT_3 state_30 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L196] EXPR __VERIFIER_nondet_uchar() & mask_SORT_37 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L196] SORT_37 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_37; [L197] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L197] SORT_3 state_80 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L198] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L198] SORT_3 state_82 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L199] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L199] SORT_3 state_84 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L200] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L200] SORT_1 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L201] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L201] SORT_3 state_88 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L202] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 VAL [mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L202] SORT_3 state_90 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L204] SORT_6 init_9_arg_1 = var_7; [L205] state_8 = init_9_arg_1 [L206] SORT_6 init_16_arg_1 = var_7; [L207] state_15 = init_16_arg_1 [L208] SORT_3 init_23_arg_1 = var_21; [L209] state_22 = init_23_arg_1 [L210] SORT_3 init_25_arg_1 = var_21; [L211] state_24 = init_25_arg_1 [L212] SORT_3 init_29_arg_1 = var_21; [L213] state_28 = init_29_arg_1 [L214] SORT_3 init_31_arg_1 = var_21; [L215] state_30 = init_31_arg_1 [L216] SORT_37 init_40_arg_1 = var_38; [L217] state_39 = init_40_arg_1 [L218] SORT_3 init_81_arg_1 = var_21; [L219] state_80 = init_81_arg_1 [L220] SORT_3 init_83_arg_1 = var_21; [L221] state_82 = init_83_arg_1 [L222] SORT_3 init_85_arg_1 = var_21; [L223] state_84 = init_85_arg_1 [L224] SORT_1 init_87_arg_1 = var_26; [L225] state_86 = init_87_arg_1 [L226] SORT_3 init_89_arg_1 = var_21; [L227] state_88 = init_89_arg_1 [L228] SORT_3 init_91_arg_1 = var_21; [L229] state_90 = init_91_arg_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L232] input_2 = __VERIFIER_nondet_uchar() [L233] input_4 = __VERIFIER_nondet_ushort() [L234] input_5 = __VERIFIER_nondet_ushort() [L235] input_114 = __VERIFIER_nondet_ushort() [L236] input_115 = __VERIFIER_nondet_ushort() [L237] input_116 = __VERIFIER_nondet_ushort() [L238] input_134 = __VERIFIER_nondet_ushort() [L239] input_135 = __VERIFIER_nondet_ushort() [L240] input_136 = __VERIFIER_nondet_ushort() [L241] input_144 = __VERIFIER_nondet_ushort() [L242] input_153 = __VERIFIER_nondet_ushort() [L243] input_154 = __VERIFIER_nondet_ushort() [L244] input_155 = __VERIFIER_nondet_ushort() [L245] input_158 = __VERIFIER_nondet_ushort() [L246] input_176 = __VERIFIER_nondet_ushort() [L247] input_177 = __VERIFIER_nondet_ushort() [L248] input_178 = __VERIFIER_nondet_ushort() [L249] input_181 = __VERIFIER_nondet_ushort() [L250] input_183 = __VERIFIER_nondet_ushort() [L251] input_197 = __VERIFIER_nondet_uchar() [L252] input_198 = __VERIFIER_nondet_uchar() [L253] input_199 = __VERIFIER_nondet_uchar() [L254] input_529 = __VERIFIER_nondet_ushort() [L255] input_530 = __VERIFIER_nondet_ushort() [L256] input_531 = __VERIFIER_nondet_ushort() [L257] input_532 = __VERIFIER_nondet_ushort() [L258] input_555 = __VERIFIER_nondet_ushort() [L259] input_557 = __VERIFIER_nondet_ushort() [L260] input_559 = __VERIFIER_nondet_ushort() [L261] input_563 = __VERIFIER_nondet_ushort() [L262] input_564 = __VERIFIER_nondet_ushort() [L263] input_565 = __VERIFIER_nondet_ushort() [L264] input_566 = __VERIFIER_nondet_ushort() [L265] input_585 = __VERIFIER_nondet_ushort() [L266] input_589 = __VERIFIER_nondet_ushort() [L267] input_591 = __VERIFIER_nondet_ushort() [L268] input_598 = __VERIFIER_nondet_ushort() [L269] input_600 = __VERIFIER_nondet_ushort() [L270] input_605 = __VERIFIER_nondet_ushort() [L271] input_607 = __VERIFIER_nondet_ushort() [L272] input_611 = __VERIFIER_nondet_ushort() [L273] input_612 = __VERIFIER_nondet_ushort() [L274] input_613 = __VERIFIER_nondet_ushort() [L275] input_614 = __VERIFIER_nondet_ushort() [L276] input_615 = __VERIFIER_nondet_ushort() [L277] input_616 = __VERIFIER_nondet_ushort() [L278] input_617 = __VERIFIER_nondet_ushort() [L279] input_618 = __VERIFIER_nondet_ushort() [L280] input_619 = __VERIFIER_nondet_ushort() [L281] input_620 = __VERIFIER_nondet_ushort() [L282] input_621 = __VERIFIER_nondet_ushort() [L283] input_622 = __VERIFIER_nondet_ushort() [L284] input_629 = __VERIFIER_nondet_ushort() [L285] input_633 = __VERIFIER_nondet_ushort() [L286] input_637 = __VERIFIER_nondet_ushort() [L287] input_641 = __VERIFIER_nondet_ushort() [L288] input_645 = __VERIFIER_nondet_ushort() [L289] input_650 = __VERIFIER_nondet_ushort() [L290] input_656 = __VERIFIER_nondet_ushort() [L291] input_658 = __VERIFIER_nondet_ushort() [L292] input_660 = __VERIFIER_nondet_ushort() [L293] input_662 = __VERIFIER_nondet_ushort() [L294] input_665 = __VERIFIER_nondet_ushort() [L295] input_671 = __VERIFIER_nondet_ushort() [L296] input_673 = __VERIFIER_nondet_ushort() [L297] input_675 = __VERIFIER_nondet_ushort() [L298] input_678 = __VERIFIER_nondet_ushort() [L299] input_684 = __VERIFIER_nondet_ushort() [L300] input_686 = __VERIFIER_nondet_ushort() [L301] input_689 = __VERIFIER_nondet_ushort() [L302] input_695 = __VERIFIER_nondet_ushort() [L303] input_698 = __VERIFIER_nondet_ushort() [L304] input_705 = __VERIFIER_nondet_ushort() [L305] input_710 = __VERIFIER_nondet_ushort() [L306] input_729 = __VERIFIER_nondet_uchar() [L307] input_730 = __VERIFIER_nondet_uchar() [L308] input_731 = __VERIFIER_nondet_uchar() [L309] input_732 = __VERIFIER_nondet_uchar() [L310] input_735 = __VERIFIER_nondet_uchar() [L311] input_737 = __VERIFIER_nondet_uchar() [L312] input_739 = __VERIFIER_nondet_uchar() [L313] input_744 = __VERIFIER_nondet_uchar() [L314] input_746 = __VERIFIER_nondet_uchar() [L315] input_751 = __VERIFIER_nondet_uchar() [L316] input_764 = __VERIFIER_nondet_ushort() [L317] input_765 = __VERIFIER_nondet_ushort() [L318] input_766 = __VERIFIER_nondet_ushort() [L321] SORT_6 var_10_arg_0 = state_8; [L322] SORT_1 var_10 = var_10_arg_0 >> 0; [L323] SORT_1 var_52_arg_0 = var_10; VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_52_arg_0=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L324] EXPR var_52_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_21=0, var_26=0, var_38=0, var_52_arg_0=0, var_534=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L324] var_52_arg_0 = var_52_arg_0 & mask_SORT_1 [L325] SORT_11 var_52 = var_52_arg_0; [L326] SORT_11 var_53_arg_0 = var_52; [L327] SORT_11 var_53_arg_1 = var_13; [L328] SORT_1 var_53 = var_53_arg_0 == var_53_arg_1; [L329] SORT_6 var_17_arg_0 = state_15; [L330] SORT_1 var_17 = var_17_arg_0 >> 0; [L331] SORT_1 var_54_arg_0 = var_17; VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54_arg_0=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L332] EXPR var_54_arg_0 & mask_SORT_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54_arg_0=0, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L332] var_54_arg_0 = var_54_arg_0 & mask_SORT_1 [L333] SORT_11 var_54 = var_54_arg_0; [L334] SORT_11 var_55_arg_0 = var_54; [L335] SORT_11 var_55_arg_1 = var_13; [L336] SORT_1 var_55 = var_55_arg_0 == var_55_arg_1; [L337] SORT_1 var_56_arg_0 = var_53; [L338] SORT_1 var_56_arg_1 = var_55; VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L339] EXPR var_56_arg_0 & var_56_arg_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L339] SORT_1 var_56 = var_56_arg_0 & var_56_arg_1; [L340] SORT_1 var_58_arg_0 = var_56; [L341] SORT_1 var_58 = ~var_58_arg_0; [L342] SORT_1 var_59_arg_0 = var_57; [L343] SORT_1 var_59_arg_1 = var_58; VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56=1, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_58=254, var_58_arg_0=1, var_59_arg_0=1, var_59_arg_1=254, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L344] EXPR var_59_arg_0 & var_59_arg_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56=1, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_58=254, var_58_arg_0=1, var_59_arg_0=1, var_59_arg_1=254, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L344] SORT_1 var_59 = var_59_arg_0 & var_59_arg_1; [L345] EXPR var_59 & mask_SORT_1 VAL [init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56=1, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_58=254, var_58_arg_0=1, var_59=1, var_59_arg_0=1, var_59_arg_1=254, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L345] var_59 = var_59 & mask_SORT_1 [L346] SORT_1 bad_60_arg_0 = var_59; VAL [bad_60_arg_0=1, init_16_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_40_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_9_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_295=15, mask_SORT_297=31, mask_SORT_299=63, mask_SORT_301=127, mask_SORT_303=255, mask_SORT_305=511, mask_SORT_307=1023, mask_SORT_309=2047, mask_SORT_312=8191, mask_SORT_314=16383, mask_SORT_316=32767, mask_SORT_37=7, mask_SORT_3=65535, mask_SORT_44=3, mask_SORT_533=131071, mask_SORT_6=4095, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_295=8, msb_SORT_297=16, msb_SORT_299=32, msb_SORT_301=64, msb_SORT_303=128, msb_SORT_305=256, msb_SORT_307=512, msb_SORT_309=1024, msb_SORT_312=4096, msb_SORT_314=8192, msb_SORT_316=16384, msb_SORT_37=4, msb_SORT_3=32768, msb_SORT_44=2, msb_SORT_533=65536, msb_SORT_6=2048, state_15=0, state_22=0, state_24=0, state_28=0, state_30=0, state_39=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_8=0, state_90=0, var_105=4, var_107=5, var_10=0, var_10_arg_0=0, var_111=3, var_128=2, var_138=0, var_13=0, var_145=65535, var_17=0, var_17_arg_0=0, var_21=0, var_26=0, var_38=0, var_52=0, var_52_arg_0=0, var_534=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=0, var_54_arg_0=0, var_55=1, var_55_arg_0=0, var_55_arg_1=0, var_56=1, var_56_arg_0=1, var_56_arg_1=1, var_57=1, var_58=254, var_58_arg_0=1, var_59=1, var_59_arg_0=1, var_59_arg_1=254, var_626=5, var_630=4, var_634=3, var_638=2, var_642=1, var_646=0, var_7=0, var_93=2, var_97=1] [L347] CALL __VERIFIER_assert(!(bad_60_arg_0)) VAL [\old(cond)=0] [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 1075 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23821 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23805 mSDsluCounter, 49605 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35916 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1783 IncrementalHoareTripleChecker+Invalid, 1828 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 13689 mSDtfsCounter, 1783 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1088occurred in iteration=5, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 4154 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 307 NumberOfCodeBlocks, 307 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 03:35:55,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/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_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/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 64bit --witnessprinter.graph.data.programhash 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:35:57,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:35:58,014 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-29 03:35:58,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:35:58,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:35:58,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:35:58,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:35:58,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:35:58,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:35:58,061 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:35:58,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:35:58,062 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:35:58,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:35:58,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:35:58,064 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:35:58,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:35:58,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:35:58,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:35:58,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:35:58,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:35:58,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:35:58,067 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:35:58,068 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 03:35:58,068 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 03:35:58,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:35:58,069 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:35:58,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:35:58,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:35:58,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:35:58,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:35:58,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:35:58,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:35:58,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:35:58,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:35:58,072 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 03:35:58,073 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 03:35:58,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:35:58,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:35:58,073 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:35:58,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:35:58,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:35:58,074 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 03:35:58,074 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_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45e58736dd2fb3c49049c2685505c5453ccebf8bd699ff36e792e3749e9ae2f9 [2023-11-29 03:35:58,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:35:58,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:35:58,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:35:58,365 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:35:58,365 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:35:58,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2023-11-29 03:36:01,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:36:01,470 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:36:01,471 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c [2023-11-29 03:36:01,489 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/data/ddd13ecda/388277560d9f426eb9b5a66bf6386f86/FLAGd728fb43c [2023-11-29 03:36:01,503 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/data/ddd13ecda/388277560d9f426eb9b5a66bf6386f86 [2023-11-29 03:36:01,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:36:01,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:36:01,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:36:01,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:36:01,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:36:01,512 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:36:01" (1/1) ... [2023-11-29 03:36:01,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac6f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:01, skipping insertion in model container [2023-11-29 03:36:01,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:36:01" (1/1) ... [2023-11-29 03:36:01,592 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:36:01,737 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_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2023-11-29 03:36:02,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:36:02,102 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:36:02,111 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_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vsa16.c[1247,1260] [2023-11-29 03:36:02,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:36:02,306 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:36:02,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02 WrapperNode [2023-11-29 03:36:02,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:36:02,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:36:02,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:36:02,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:36:02,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,462 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2539 [2023-11-29 03:36:02,462 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:36:02,463 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:36:02,463 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:36:02,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:36:02,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,532 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:36:02,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,630 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:36:02,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:36:02,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:36:02,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:36:02,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (1/1) ... [2023-11-29 03:36:02,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:36:02,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:36:02,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:36:02,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:36:02,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:36:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 03:36:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:36:02,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:36:02,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:36:02,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:36:03,142 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:36:03,144 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:36:05,803 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:36:05,938 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:36:05,938 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:36:05,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:36:05 BoogieIcfgContainer [2023-11-29 03:36:05,939 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:36:05,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:36:05,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:36:05,945 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:36:05,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:36:01" (1/3) ... [2023-11-29 03:36:05,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5170c979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:36:05, skipping insertion in model container [2023-11-29 03:36:05,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:36:02" (2/3) ... [2023-11-29 03:36:05,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5170c979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:36:05, skipping insertion in model container [2023-11-29 03:36:05,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:36:05" (3/3) ... [2023-11-29 03:36:05,947 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vsa16.c [2023-11-29 03:36:05,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:36:05,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:36:06,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:36:06,018 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;@3147e684, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:36:06,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:36:06,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:36:06,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 03:36:06,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:06,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 03:36:06,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:06,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:06,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2051499341, now seen corresponding path program 1 times [2023-11-29 03:36:06,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:36:06,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521299628] [2023-11-29 03:36:06,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:06,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:06,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:36:06,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:36:06,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 03:36:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:06,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 03:36:06,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:36:06,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:06,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:36:06,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:36:06,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521299628] [2023-11-29 03:36:06,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521299628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:06,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:06,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:36:06,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6645292] [2023-11-29 03:36:06,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:06,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:36:06,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:36:06,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:36:06,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:36:06,834 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:36:07,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:07,296 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2023-11-29 03:36:07,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:36:07,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 03:36:07,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:07,306 INFO L225 Difference]: With dead ends: 47 [2023-11-29 03:36:07,306 INFO L226 Difference]: Without dead ends: 30 [2023-11-29 03:36:07,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:36:07,312 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 13 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:07,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 55 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:36:07,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-29 03:36:07,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2023-11-29 03:36:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 03:36:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-11-29 03:36:07,350 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 6 [2023-11-29 03:36:07,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:07,351 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-11-29 03:36:07,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:36:07,351 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-29 03:36:07,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 03:36:07,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:07,352 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:36:07,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:36:07,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:07,553 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:07,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:07,554 INFO L85 PathProgramCache]: Analyzing trace with hash 730219341, now seen corresponding path program 1 times [2023-11-29 03:36:07,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:36:07,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1724781275] [2023-11-29 03:36:07,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:07,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:07,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:36:07,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:36:07,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-29 03:36:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:07,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 03:36:07,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:36:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:36:08,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:36:08,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:36:08,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1724781275] [2023-11-29 03:36:08,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1724781275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:08,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:08,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:36:08,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384243925] [2023-11-29 03:36:08,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:08,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:36:08,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:36:08,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:36:08,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:36:08,168 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:36:08,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:08,709 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-11-29 03:36:08,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:36:08,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-29 03:36:08,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:08,711 INFO L225 Difference]: With dead ends: 38 [2023-11-29 03:36:08,711 INFO L226 Difference]: Without dead ends: 36 [2023-11-29 03:36:08,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:36:08,713 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:08,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 73 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:36:08,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-29 03:36:08,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2023-11-29 03:36:08,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 19 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 03:36:08,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2023-11-29 03:36:08,723 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 12 [2023-11-29 03:36:08,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:08,724 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-29 03:36:08,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 03:36:08,724 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2023-11-29 03:36:08,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 03:36:08,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:08,725 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:36:08,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-29 03:36:08,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:08,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:08,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:08,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1887197541, now seen corresponding path program 1 times [2023-11-29 03:36:08,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:36:08,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108835738] [2023-11-29 03:36:08,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:08,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:08,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:36:08,928 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:36:08,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-29 03:36:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:09,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 03:36:09,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:36:09,432 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 03:36:09,432 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:36:09,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:36:09,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108835738] [2023-11-29 03:36:09,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108835738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:09,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:09,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:36:09,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547498043] [2023-11-29 03:36:09,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:09,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:36:09,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:36:09,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:36:09,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:36:09,435 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:36:09,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:09,826 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2023-11-29 03:36:09,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:36:09,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 03:36:09,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:09,828 INFO L225 Difference]: With dead ends: 44 [2023-11-29 03:36:09,828 INFO L226 Difference]: Without dead ends: 42 [2023-11-29 03:36:09,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:36:09,830 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 11 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:09,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 82 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:36:09,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-29 03:36:09,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2023-11-29 03:36:09,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 23 states have internal predecessors, (23), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 03:36:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2023-11-29 03:36:09,839 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2023-11-29 03:36:09,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:09,839 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2023-11-29 03:36:09,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 03:36:09,840 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2023-11-29 03:36:09,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 03:36:09,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:09,840 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:36:09,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-29 03:36:10,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:10,041 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:10,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:10,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1730561659, now seen corresponding path program 1 times [2023-11-29 03:36:10,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:36:10,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513025788] [2023-11-29 03:36:10,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:10,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:10,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:36:10,044 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:36:10,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-29 03:36:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:10,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-29 03:36:10,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:36:10,991 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 03:36:10,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:36:10,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:36:10,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513025788] [2023-11-29 03:36:10,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513025788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:36:10,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:36:10,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:36:10,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097184934] [2023-11-29 03:36:10,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:36:10,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:36:10,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:36:10,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:36:10,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:36:10,994 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:36:11,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:11,577 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2023-11-29 03:36:11,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:36:11,578 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2023-11-29 03:36:11,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:11,579 INFO L225 Difference]: With dead ends: 50 [2023-11-29 03:36:11,579 INFO L226 Difference]: Without dead ends: 48 [2023-11-29 03:36:11,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:36:11,580 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 16 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:11,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 125 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:36:11,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-29 03:36:11,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40. [2023-11-29 03:36:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 03:36:11,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2023-11-29 03:36:11,590 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 24 [2023-11-29 03:36:11,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:11,591 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2023-11-29 03:36:11,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:36:11,591 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2023-11-29 03:36:11,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 03:36:11,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:11,592 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:36:11,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-29 03:36:11,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:11,793 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:11,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:11,793 INFO L85 PathProgramCache]: Analyzing trace with hash 907662433, now seen corresponding path program 1 times [2023-11-29 03:36:11,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:36:11,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943367736] [2023-11-29 03:36:11,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:11,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:11,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:36:11,798 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:36:11,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-29 03:36:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:15,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 2031 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-29 03:36:15,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:36:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:36:15,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:36:17,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:36:17,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [943367736] [2023-11-29 03:36:17,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [943367736] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:36:17,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1511360059] [2023-11-29 03:36:17,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:36:17,426 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:36:17,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:36:17,427 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:36:17,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-29 03:36:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:36:19,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 2031 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-29 03:36:19,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:36:19,541 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 03:36:19,541 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:36:20,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1511360059] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:36:20,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:36:20,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-11-29 03:36:20,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570672565] [2023-11-29 03:36:20,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:36:20,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:36:20,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:36:20,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:36:20,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:36:20,511 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:36:21,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:21,367 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2023-11-29 03:36:21,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:36:21,368 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 31 [2023-11-29 03:36:21,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:21,369 INFO L225 Difference]: With dead ends: 57 [2023-11-29 03:36:21,369 INFO L226 Difference]: Without dead ends: 55 [2023-11-29 03:36:21,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 61 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:36:21,371 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:21,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 66 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:36:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-29 03:36:21,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 47. [2023-11-29 03:36:21,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.032258064516129) internal successors, (32), 32 states have internal predecessors, (32), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:36:21,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2023-11-29 03:36:21,383 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 31 [2023-11-29 03:36:21,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:21,383 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2023-11-29 03:36:21,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 03:36:21,384 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2023-11-29 03:36:21,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 03:36:21,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:21,385 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:36:21,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 03:36:21,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-29 03:36:21,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 03:36:21,786 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:21,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:21,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2032860549, now seen corresponding path program 2 times [2023-11-29 03:36:21,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:36:21,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305863500] [2023-11-29 03:36:21,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:36:21,788 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:21,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:36:21,789 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:36:21,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-29 03:36:25,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:36:25,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:36:25,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 259 conjunts are in the unsatisfiable core [2023-11-29 03:36:25,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:36:35,020 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 03:36:35,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:36:35,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:36:35,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305863500] [2023-11-29 03:36:35,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305863500] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:36:35,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [716716841] [2023-11-29 03:36:35,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:36:35,266 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:36:35,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:36:35,267 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:36:35,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-29 03:36:37,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:36:37,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:36:37,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 2061 conjuncts, 262 conjunts are in the unsatisfiable core [2023-11-29 03:36:37,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:36:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 03:36:46,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:36:46,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [716716841] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:36:46,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:36:46,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-29 03:36:46,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044702058] [2023-11-29 03:36:46,856 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:36:46,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:36:46,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:36:46,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:36:46,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:36:46,857 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 8 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:36:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:47,634 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2023-11-29 03:36:47,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:36:47,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2023-11-29 03:36:47,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:47,636 INFO L225 Difference]: With dead ends: 63 [2023-11-29 03:36:47,637 INFO L226 Difference]: Without dead ends: 61 [2023-11-29 03:36:47,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:36:47,638 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:47,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 67 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 03:36:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-29 03:36:47,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2023-11-29 03:36:47,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 36 states have internal predecessors, (36), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:36:47,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2023-11-29 03:36:47,648 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 37 [2023-11-29 03:36:47,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:47,648 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2023-11-29 03:36:47,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 03:36:47,648 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2023-11-29 03:36:47,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 03:36:47,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:47,649 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:36:47,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-29 03:36:47,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-11-29 03:36:48,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 03:36:48,050 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:48,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:48,051 INFO L85 PathProgramCache]: Analyzing trace with hash -522289645, now seen corresponding path program 3 times [2023-11-29 03:36:48,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:36:48,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529971304] [2023-11-29 03:36:48,052 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:36:48,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:48,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:36:48,053 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:36:48,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-29 03:36:50,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:36:50,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:36:50,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 03:36:50,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:36:51,055 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 03:36:51,055 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:36:51,191 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:36:51,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529971304] [2023-11-29 03:36:51,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529971304] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:36:51,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [536383714] [2023-11-29 03:36:51,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:36:51,192 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:36:51,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:36:51,193 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:36:51,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-29 03:36:52,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:36:52,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:36:52,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 1939 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-29 03:36:52,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:36:53,124 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 03:36:53,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:36:53,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [536383714] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:36:53,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:36:53,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-29 03:36:53,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168178854] [2023-11-29 03:36:53,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:36:53,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:36:53,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:36:53,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:36:53,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:36:53,218 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:36:54,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:36:54,027 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2023-11-29 03:36:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:36:54,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2023-11-29 03:36:54,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:36:54,030 INFO L225 Difference]: With dead ends: 69 [2023-11-29 03:36:54,030 INFO L226 Difference]: Without dead ends: 67 [2023-11-29 03:36:54,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 86 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:36:54,031 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 15 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:36:54,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 85 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:36:54,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-29 03:36:54,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2023-11-29 03:36:54,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 39 states have (on average 1.0256410256410255) internal successors, (40), 40 states have internal predecessors, (40), 11 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 03:36:54,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2023-11-29 03:36:54,046 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 43 [2023-11-29 03:36:54,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:36:54,046 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2023-11-29 03:36:54,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 4 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 03:36:54,047 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2023-11-29 03:36:54,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 03:36:54,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:36:54,047 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 03:36:54,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-29 03:36:54,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-11-29 03:36:54,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 03:36:54,448 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:36:54,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:36:54,449 INFO L85 PathProgramCache]: Analyzing trace with hash -623267671, now seen corresponding path program 4 times [2023-11-29 03:36:54,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:36:54,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465428345] [2023-11-29 03:36:54,450 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:36:54,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:36:54,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:36:54,451 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:36:54,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-29 03:36:58,772 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:36:58,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:36:58,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 2153 conjuncts, 327 conjunts are in the unsatisfiable core [2023-11-29 03:36:58,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:37:11,273 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 03:37:11,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:37:13,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:37:13,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465428345] [2023-11-29 03:37:13,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465428345] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:37:13,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1700398131] [2023-11-29 03:37:13,272 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:37:13,272 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:37:13,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:37:13,273 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:37:13,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-29 03:37:14,997 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:37:14,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:37:15,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 2153 conjuncts, 333 conjunts are in the unsatisfiable core [2023-11-29 03:37:15,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:37:27,601 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 03:37:27,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:37:29,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1700398131] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:37:29,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:37:29,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2023-11-29 03:37:29,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291771603] [2023-11-29 03:37:29,282 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:37:29,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:37:29,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:37:29,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:37:29,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-29 03:37:29,283 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand has 10 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 03:37:30,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:30,404 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2023-11-29 03:37:30,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:37:30,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 49 [2023-11-29 03:37:30,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:30,406 INFO L225 Difference]: With dead ends: 75 [2023-11-29 03:37:30,407 INFO L226 Difference]: Without dead ends: 73 [2023-11-29 03:37:30,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 96 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:37:30,408 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 16 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:30,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 180 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 03:37:30,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-29 03:37:30,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2023-11-29 03:37:30,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 44 states have internal predecessors, (44), 12 states have call successors, (12), 9 states have call predecessors, (12), 9 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 03:37:30,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2023-11-29 03:37:30,423 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 49 [2023-11-29 03:37:30,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:30,424 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2023-11-29 03:37:30,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 5 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 03:37:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2023-11-29 03:37:30,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 03:37:30,425 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:30,425 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-29 03:37:30,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-11-29 03:37:30,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-29 03:37:30,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:37:30,826 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:30,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1441711501, now seen corresponding path program 5 times [2023-11-29 03:37:30,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:37:30,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982488921] [2023-11-29 03:37:30,830 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:37:30,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:37:30,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:37:30,831 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:37:30,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-29 03:37:34,338 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 03:37:34,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:37:34,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 3938 conjuncts, 93 conjunts are in the unsatisfiable core [2023-11-29 03:37:34,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:37:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 27 proven. 23 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-29 03:37:35,470 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:37:36,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:37:36,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982488921] [2023-11-29 03:37:36,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1982488921] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:37:36,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1965566663] [2023-11-29 03:37:36,505 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:37:36,505 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:37:36,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:37:36,506 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:37:36,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-29 03:37:40,129 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 03:37:40,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:37:40,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 3938 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-29 03:37:40,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:37:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 16 proven. 13 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 03:37:41,133 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:37:42,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1965566663] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:37:42,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:37:42,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 16 [2023-11-29 03:37:42,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921140057] [2023-11-29 03:37:42,289 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:37:42,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:37:42,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:37:42,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:37:42,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:37:42,291 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 03:37:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:37:43,944 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2023-11-29 03:37:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:37:43,945 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) Word has length 56 [2023-11-29 03:37:43,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:37:43,946 INFO L225 Difference]: With dead ends: 81 [2023-11-29 03:37:43,946 INFO L226 Difference]: Without dead ends: 79 [2023-11-29 03:37:43,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:37:43,947 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 50 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:37:43,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 83 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:37:43,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-29 03:37:43,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2023-11-29 03:37:43,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 49 states have internal predecessors, (49), 13 states have call successors, (13), 10 states have call predecessors, (13), 10 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:37:43,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2023-11-29 03:37:43,961 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 56 [2023-11-29 03:37:43,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:37:43,961 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2023-11-29 03:37:43,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 4 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 03:37:43,961 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2023-11-29 03:37:43,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:37:43,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:37:43,962 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-29 03:37:43,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-11-29 03:37:44,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-29 03:37:44,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:37:44,363 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:37:44,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:37:44,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1498944269, now seen corresponding path program 6 times [2023-11-29 03:37:44,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:37:44,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960447593] [2023-11-29 03:37:44,366 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 03:37:44,367 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:37:44,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:37:44,368 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:37:44,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-29 03:37:46,928 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-11-29 03:37:46,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:37:46,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 377 conjunts are in the unsatisfiable core [2023-11-29 03:37:47,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:37:59,366 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 32 proven. 24 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 03:37:59,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:37:59,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:37:59,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960447593] [2023-11-29 03:37:59,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960447593] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:37:59,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [64149422] [2023-11-29 03:37:59,634 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 03:37:59,634 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:37:59,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:37:59,635 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:37:59,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-29 03:38:01,866 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-11-29 03:38:01,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:38:01,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 2029 conjuncts, 444 conjunts are in the unsatisfiable core [2023-11-29 03:38:01,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:38:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 36 proven. 41 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-11-29 03:38:17,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:38:17,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [64149422] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:38:17,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:38:17,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 17 [2023-11-29 03:38:17,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596188978] [2023-11-29 03:38:17,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:38:17,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:38:17,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:38:17,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:38:17,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:38:17,982 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand has 17 states, 12 states have (on average 2.75) internal successors, (33), 16 states have internal predecessors, (33), 11 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 9 states have call successors, (16) [2023-11-29 03:38:19,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:19,659 INFO L93 Difference]: Finished difference Result 78 states and 80 transitions. [2023-11-29 03:38:19,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:38:19,660 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 12 states have (on average 2.75) internal successors, (33), 16 states have internal predecessors, (33), 11 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 9 states have call successors, (16) Word has length 62 [2023-11-29 03:38:19,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:19,662 INFO L225 Difference]: With dead ends: 78 [2023-11-29 03:38:19,662 INFO L226 Difference]: Without dead ends: 76 [2023-11-29 03:38:19,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 115 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:38:19,663 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 32 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:19,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 82 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:38:19,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-29 03:38:19,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-29 03:38:19,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.0196078431372548) internal successors, (52), 52 states have internal predecessors, (52), 13 states have call successors, (13), 11 states have call predecessors, (13), 11 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 03:38:19,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2023-11-29 03:38:19,695 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 62 [2023-11-29 03:38:19,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:19,696 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2023-11-29 03:38:19,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 12 states have (on average 2.75) internal successors, (33), 16 states have internal predecessors, (33), 11 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 6 states have call predecessors, (16), 9 states have call successors, (16) [2023-11-29 03:38:19,696 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2023-11-29 03:38:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 03:38:19,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:19,697 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-29 03:38:19,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-11-29 03:38:19,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-29 03:38:20,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:38:20,098 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:20,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:20,099 INFO L85 PathProgramCache]: Analyzing trace with hash 337860901, now seen corresponding path program 7 times [2023-11-29 03:38:20,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:38:20,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342243277] [2023-11-29 03:38:20,101 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 03:38:20,101 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:38:20,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:38:20,102 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:38:20,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-29 03:38:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:39,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 3998 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-29 03:38:39,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:38:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 21 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 03:38:39,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:38:40,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:38:40,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342243277] [2023-11-29 03:38:40,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342243277] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:38:40,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1698230060] [2023-11-29 03:38:40,131 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 03:38:40,131 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:38:40,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:38:40,132 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:38:40,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-29 03:38:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:38:43,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 3998 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 03:38:43,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:38:43,463 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 20 proven. 21 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 03:38:43,463 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:38:43,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1698230060] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:38:43,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:38:43,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2023-11-29 03:38:43,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174421822] [2023-11-29 03:38:43,558 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:38:43,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:38:43,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:38:43,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:38:43,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:38:43,559 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand has 11 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 03:38:45,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:38:45,004 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2023-11-29 03:38:45,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:38:45,004 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 68 [2023-11-29 03:38:45,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:38:45,005 INFO L225 Difference]: With dead ends: 94 [2023-11-29 03:38:45,005 INFO L226 Difference]: Without dead ends: 92 [2023-11-29 03:38:45,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 132 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:38:45,006 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:38:45,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 142 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:38:45,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-29 03:38:45,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 84. [2023-11-29 03:38:45,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 57 states have internal predecessors, (57), 15 states have call successors, (15), 12 states have call predecessors, (15), 12 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:38:45,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 87 transitions. [2023-11-29 03:38:45,028 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 87 transitions. Word has length 68 [2023-11-29 03:38:45,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:38:45,029 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 87 transitions. [2023-11-29 03:38:45,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 7 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-11-29 03:38:45,029 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 87 transitions. [2023-11-29 03:38:45,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 03:38:45,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:38:45,030 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1] [2023-11-29 03:38:45,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-11-29 03:38:45,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-11-29 03:38:45,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 03:38:45,431 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:38:45,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:38:45,431 INFO L85 PathProgramCache]: Analyzing trace with hash 939423291, now seen corresponding path program 8 times [2023-11-29 03:38:45,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:38:45,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961648331] [2023-11-29 03:38:45,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:38:45,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:38:45,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:38:45,435 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:38:45,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-29 03:39:03,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:39:03,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:39:03,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 4060 conjuncts, 571 conjunts are in the unsatisfiable core [2023-11-29 03:39:03,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:39:27,506 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 22 proven. 25 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 03:39:27,506 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:39:29,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:39:29,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961648331] [2023-11-29 03:39:29,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961648331] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:39:29,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [198087392] [2023-11-29 03:39:29,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:39:29,435 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:39:29,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:39:29,436 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:39:29,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-29 03:39:32,299 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:39:32,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:39:32,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 4060 conjuncts, 578 conjunts are in the unsatisfiable core [2023-11-29 03:39:32,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:39:56,290 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 22 proven. 25 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 03:39:56,290 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:39:57,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [198087392] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:39:57,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:39:57,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2023-11-29 03:39:57,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872557548] [2023-11-29 03:39:57,766 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:39:57,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:39:57,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:39:57,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:39:57,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:39:57,767 INFO L87 Difference]: Start difference. First operand 84 states and 87 transitions. Second operand has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 6 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 03:39:59,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:39:59,264 INFO L93 Difference]: Finished difference Result 100 states and 106 transitions. [2023-11-29 03:39:59,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:39:59,266 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 6 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 74 [2023-11-29 03:39:59,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:39:59,267 INFO L225 Difference]: With dead ends: 100 [2023-11-29 03:39:59,267 INFO L226 Difference]: Without dead ends: 98 [2023-11-29 03:39:59,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 145 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:39:59,268 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 16 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:39:59,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 248 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 03:39:59,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-29 03:39:59,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 90. [2023-11-29 03:39:59,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 61 states have internal predecessors, (61), 16 states have call successors, (16), 13 states have call predecessors, (16), 13 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 03:39:59,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2023-11-29 03:39:59,293 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 74 [2023-11-29 03:39:59,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:39:59,294 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2023-11-29 03:39:59,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 6 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 03:39:59,294 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2023-11-29 03:39:59,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 03:39:59,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:39:59,295 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2023-11-29 03:39:59,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-11-29 03:39:59,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-11-29 03:39:59,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 03:39:59,695 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:39:59,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:39:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2107609951, now seen corresponding path program 9 times [2023-11-29 03:39:59,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:39:59,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59821484] [2023-11-29 03:39:59,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:39:59,699 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:39:59,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:39:59,700 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:39:59,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-29 03:40:18,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-29 03:40:18,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:40:18,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 5753 conjuncts, 100 conjunts are in the unsatisfiable core [2023-11-29 03:40:18,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:40:19,928 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 56 proven. 34 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-29 03:40:19,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:40:21,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:40:21,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59821484] [2023-11-29 03:40:21,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59821484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:40:21,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1884060279] [2023-11-29 03:40:21,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:40:21,027 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:40:21,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:40:21,028 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:40:21,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-29 03:40:25,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-29 03:40:25,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:40:26,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 5753 conjuncts, 127 conjunts are in the unsatisfiable core [2023-11-29 03:40:26,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:40:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 24 proven. 33 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 03:40:27,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:40:28,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1884060279] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:40:28,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:40:28,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 19 [2023-11-29 03:40:28,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434304062] [2023-11-29 03:40:28,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:40:28,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 03:40:28,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:40:28,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 03:40:28,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:40:28,831 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 19 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 9 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2023-11-29 03:40:32,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:40:32,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:40:32,835 INFO L93 Difference]: Finished difference Result 106 states and 112 transitions. [2023-11-29 03:40:32,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:40:32,836 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 9 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 81 [2023-11-29 03:40:32,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:40:32,837 INFO L225 Difference]: With dead ends: 106 [2023-11-29 03:40:32,837 INFO L226 Difference]: Without dead ends: 104 [2023-11-29 03:40:32,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 151 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 03:40:32,838 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 59 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:40:32,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 128 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 03:40:32,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-29 03:40:32,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 97. [2023-11-29 03:40:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 66 states have internal predecessors, (66), 17 states have call successors, (17), 14 states have call predecessors, (17), 14 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 03:40:32,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 100 transitions. [2023-11-29 03:40:32,880 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 100 transitions. Word has length 81 [2023-11-29 03:40:32,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:40:32,881 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 100 transitions. [2023-11-29 03:40:32,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 9 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2023-11-29 03:40:32,881 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 100 transitions. [2023-11-29 03:40:32,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 03:40:32,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:40:32,882 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1] [2023-11-29 03:40:32,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-11-29 03:40:33,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-11-29 03:40:33,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 03:40:33,283 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:40:33,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:40:33,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1623373395, now seen corresponding path program 10 times [2023-11-29 03:40:33,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:40:33,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59929729] [2023-11-29 03:40:33,314 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:40:33,314 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:40:33,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:40:33,315 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:40:33,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-11-29 03:41:30,469 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:41:30,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:41:30,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 5905 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-29 03:41:30,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 28 proven. 45 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:41:31,160 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:41:31,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:41:31,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59929729] [2023-11-29 03:41:31,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59929729] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:41:31,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1575143339] [2023-11-29 03:41:31,315 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 03:41:31,315 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:41:31,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:41:31,316 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:41:31,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-29 03:41:35,441 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 03:41:35,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:41:35,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 5905 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-29 03:41:35,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:36,353 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 28 proven. 45 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-29 03:41:36,353 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:41:36,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1575143339] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:41:36,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:41:36,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-11-29 03:41:36,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236580889] [2023-11-29 03:41:36,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:41:36,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:41:36,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:41:36,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:41:36,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:41:36,453 INFO L87 Difference]: Start difference. First operand 97 states and 100 transitions. Second operand has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 13 states have internal predecessors, (44), 10 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) [2023-11-29 03:41:38,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:38,536 INFO L93 Difference]: Finished difference Result 115 states and 122 transitions. [2023-11-29 03:41:38,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:41:38,537 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 13 states have internal predecessors, (44), 10 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) Word has length 93 [2023-11-29 03:41:38,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:38,538 INFO L225 Difference]: With dead ends: 115 [2023-11-29 03:41:38,538 INFO L226 Difference]: Without dead ends: 113 [2023-11-29 03:41:38,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 180 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:41:38,539 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 25 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:38,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 218 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 03:41:38,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-11-29 03:41:38,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 105. [2023-11-29 03:41:38,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 71 states have internal predecessors, (71), 19 states have call successors, (19), 15 states have call predecessors, (19), 15 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 03:41:38,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 109 transitions. [2023-11-29 03:41:38,576 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 109 transitions. Word has length 93 [2023-11-29 03:41:38,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:38,576 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 109 transitions. [2023-11-29 03:41:38,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 13 states have internal predecessors, (44), 10 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (28), 8 states have call predecessors, (28), 8 states have call successors, (28) [2023-11-29 03:41:38,576 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 109 transitions. [2023-11-29 03:41:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 03:41:38,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:38,578 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1] [2023-11-29 03:41:38,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-11-29 03:41:38,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-11-29 03:41:38,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:41:38,978 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:41:38,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:38,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1984084201, now seen corresponding path program 11 times [2023-11-29 03:41:38,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:41:38,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288790481] [2023-11-29 03:41:38,985 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:41:38,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:41:38,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:41:38,986 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:41:38,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-11-29 03:41:44,517 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2023-11-29 03:41:44,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:41:44,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 5967 conjuncts, 816 conjunts are in the unsatisfiable core [2023-11-29 03:41:44,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 53 proven. 70 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-29 03:42:18,152 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:19,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:42:19,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288790481] [2023-11-29 03:42:19,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288790481] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:19,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1538365249] [2023-11-29 03:42:19,125 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 03:42:19,125 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:42:19,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:42:19,126 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:42:19,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-29 03:42:24,803 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2023-11-29 03:42:24,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:42:25,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 5967 conjuncts, 829 conjunts are in the unsatisfiable core [2023-11-29 03:42:25,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:43:03,585 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 30 proven. 51 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-29 03:43:03,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:43:04,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1538365249] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:43:04,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:43:04,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 22 [2023-11-29 03:43:04,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661539921] [2023-11-29 03:43:04,346 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:43:04,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 03:43:04,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:43:04,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 03:43:04,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:43:04,348 INFO L87 Difference]: Start difference. First operand 105 states and 109 transitions. Second operand has 22 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 21 states have internal predecessors, (49), 13 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) [2023-11-29 03:43:08,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:43:08,718 INFO L93 Difference]: Finished difference Result 114 states and 118 transitions. [2023-11-29 03:43:08,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:43:08,719 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 21 states have internal predecessors, (49), 13 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) Word has length 99 [2023-11-29 03:43:08,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:43:08,720 INFO L225 Difference]: With dead ends: 114 [2023-11-29 03:43:08,720 INFO L226 Difference]: Without dead ends: 112 [2023-11-29 03:43:08,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 185 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=140, Invalid=1050, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 03:43:08,721 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 41 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:43:08,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 300 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 03:43:08,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-29 03:43:08,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2023-11-29 03:43:08,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 74 states have (on average 1.0135135135135136) internal successors, (75), 75 states have internal predecessors, (75), 20 states have call successors, (20), 16 states have call predecessors, (20), 16 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 03:43:08,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 115 transitions. [2023-11-29 03:43:08,751 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 115 transitions. Word has length 99 [2023-11-29 03:43:08,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:43:08,752 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 115 transitions. [2023-11-29 03:43:08,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 2.5789473684210527) internal successors, (49), 21 states have internal predecessors, (49), 13 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 10 states have call predecessors, (30), 11 states have call successors, (30) [2023-11-29 03:43:08,752 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 115 transitions. [2023-11-29 03:43:08,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 03:43:08,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:43:08,753 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2023-11-29 03:43:08,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2023-11-29 03:43:08,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-11-29 03:43:09,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 03:43:09,154 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:43:09,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:09,154 INFO L85 PathProgramCache]: Analyzing trace with hash 406481459, now seen corresponding path program 12 times [2023-11-29 03:43:09,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:43:09,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205600200] [2023-11-29 03:43:09,158 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 03:43:09,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 03:43:09,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:43:09,159 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 03:43:09,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-11-29 03:43:51,991 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-11-29 03:43:51,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:43:52,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 7632 conjuncts, 260 conjunts are in the unsatisfiable core [2023-11-29 03:43:52,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:44:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 94 proven. 36 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2023-11-29 03:44:27,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:44:30,353 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:44:30,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205600200] [2023-11-29 03:44:30,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205600200] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:44:30,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1810481874] [2023-11-29 03:44:30,353 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 03:44:30,353 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 03:44:30,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 03:44:30,354 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 03:44:30,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de37cefe-a39b-48f3-a05a-b5dc2ef14e2f/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-29 03:44:36,809 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2023-11-29 03:44:36,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:44:37,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 7632 conjuncts, 343 conjunts are in the unsatisfiable core [2023-11-29 03:44:37,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:45:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 574 backedges. 76 proven. 63 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-29 03:45:09,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:45:12,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1810481874] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:45:12,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:45:12,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16] total 24 [2023-11-29 03:45:12,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450810631] [2023-11-29 03:45:12,269 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:45:12,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 03:45:12,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:45:12,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 03:45:12,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=784, Unknown=5, NotChecked=0, Total=870 [2023-11-29 03:45:12,271 INFO L87 Difference]: Start difference. First operand 111 states and 115 transitions. Second operand has 24 states, 20 states have (on average 2.45) internal successors, (49), 21 states have internal predecessors, (49), 12 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-29 03:45:25,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:45:29,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:45:47,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:45:51,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:45:55,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:45:59,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:46:14,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:46:18,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:46:23,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:46:32,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:46:38,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:46:47,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:46:51,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:46:53,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:47:03,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:47:20,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:47:29,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:47:30,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:47:41,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:47:45,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:47:49,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:47:53,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:47:57,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:48:01,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:48:05,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:48:10,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:48:32,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:48:36,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:48:51,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:48:55,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:49:18,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:49:22,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:49:26,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:49:30,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:49:34,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:50:01,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 03:50:05,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]