./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a71ef89e0c9f3635b059609e166e2ca02077ae52d17a785a0f63b8520dafcb51 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:54:53,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:54:53,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:54:53,224 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:54:53,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:54:53,266 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:54:53,270 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:54:53,271 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:54:53,272 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:54:53,273 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:54:53,274 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:54:53,274 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:54:53,274 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:54:53,275 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:54:53,275 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:54:53,278 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:54:53,278 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:54:53,279 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:54:53,279 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:54:53,279 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:54:53,280 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:54:53,284 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:54:53,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:54:53,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:54:53,285 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:54:53,285 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:54:53,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:54:53,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:54:53,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:54:53,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:54:53,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:54:53,288 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:54:53,289 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:54:53,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:54:53,289 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:54:53,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:54:53,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:54:53,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:54:53,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:54:53,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:54:53,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:54:53,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:54:53,293 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:54:53,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:54:53,294 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:54:53,294 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:54:53,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:54:53,295 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a71ef89e0c9f3635b059609e166e2ca02077ae52d17a785a0f63b8520dafcb51 [2024-11-09 06:54:53,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:54:53,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:54:53,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:54:53,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:54:53,638 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:54:53,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i Unable to find full path for "g++" [2024-11-09 06:54:55,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:54:55,961 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:54:55,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i [2024-11-09 06:54:55,971 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/data/5032e8b24/e0b9494e60a4409c8a7a83d87cce7a7f/FLAG9483181f5 [2024-11-09 06:54:55,996 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/data/5032e8b24/e0b9494e60a4409c8a7a83d87cce7a7f [2024-11-09 06:54:55,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:54:56,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:54:56,002 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:54:56,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:54:56,009 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:54:56,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:54:55" (1/1) ... [2024-11-09 06:54:56,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122e0fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56, skipping insertion in model container [2024-11-09 06:54:56,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:54:55" (1/1) ... [2024-11-09 06:54:56,043 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:54:56,245 WARN L250 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_026af440-8e32-49dd-a96d-6789ad5c8796/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i[916,929] [2024-11-09 06:54:56,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:54:56,322 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:54:56,336 WARN L250 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_026af440-8e32-49dd-a96d-6789ad5c8796/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i[916,929] [2024-11-09 06:54:56,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:54:56,407 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:54:56,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56 WrapperNode [2024-11-09 06:54:56,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:54:56,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:54:56,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:54:56,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:54:56,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,491 INFO L138 Inliner]: procedures = 29, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 553 [2024-11-09 06:54:56,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:54:56,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:54:56,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:54:56,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:54:56,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,529 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:54:56,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:54:56,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:54:56,572 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:54:56,573 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (1/1) ... [2024-11-09 06:54:56,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:54:56,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:54:56,612 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:54:56,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:54:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:54:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 06:54:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:54:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 06:54:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:54:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-09 06:54:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:54:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:54:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:54:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:54:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:54:56,862 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:54:56,865 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:54:57,676 INFO L? ?]: Removed 145 outVars from TransFormulas that were not future-live. [2024-11-09 06:54:57,676 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:54:58,454 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:54:58,455 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:54:58,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:54:58 BoogieIcfgContainer [2024-11-09 06:54:58,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:54:58,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:54:58,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:54:58,466 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:54:58,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:54:55" (1/3) ... [2024-11-09 06:54:58,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa2bbfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:54:58, skipping insertion in model container [2024-11-09 06:54:58,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:54:56" (2/3) ... [2024-11-09 06:54:58,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa2bbfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:54:58, skipping insertion in model container [2024-11-09 06:54:58,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:54:58" (3/3) ... [2024-11-09 06:54:58,472 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-70.i [2024-11-09 06:54:58,497 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:54:58,497 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:54:58,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:54:58,601 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@3c0d735d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:54:58,601 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:54:58,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:54:58,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 06:54:58,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:54:58,619 INFO L215 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:54:58,620 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:54:58,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:54:58,628 INFO L85 PathProgramCache]: Analyzing trace with hash 983371618, now seen corresponding path program 1 times [2024-11-09 06:54:58,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:54:58,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225846951] [2024-11-09 06:54:58,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:58,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:55:03,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:55:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:55:06,968 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:55:06,970 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:55:06,972 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:55:06,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:55:06,981 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:55:07,150 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:55:07,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:55:07 BoogieIcfgContainer [2024-11-09 06:55:07,154 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:55:07,154 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:55:07,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:55:07,155 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:55:07,156 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:54:58" (3/4) ... [2024-11-09 06:55:07,159 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:55:07,161 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:55:07,163 INFO L158 Benchmark]: Toolchain (without parser) took 11161.69ms. Allocated memory was 157.3MB in the beginning and 522.2MB in the end (delta: 364.9MB). Free memory was 128.2MB in the beginning and 301.4MB in the end (delta: -173.2MB). Peak memory consumption was 194.8MB. Max. memory is 16.1GB. [2024-11-09 06:55:07,164 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory was 74.1MB in the beginning and 73.9MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:55:07,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.95ms. Allocated memory is still 157.3MB. Free memory was 127.9MB in the beginning and 111.4MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:55:07,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.44ms. Allocated memory is still 157.3MB. Free memory was 111.4MB in the beginning and 107.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:55:07,166 INFO L158 Benchmark]: Boogie Preprocessor took 73.94ms. Allocated memory is still 157.3MB. Free memory was 107.4MB in the beginning and 104.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:55:07,167 INFO L158 Benchmark]: RCFGBuilder took 1889.66ms. Allocated memory is still 157.3MB. Free memory was 104.5MB in the beginning and 99.7MB in the end (delta: 4.7MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2024-11-09 06:55:07,169 INFO L158 Benchmark]: TraceAbstraction took 8693.26ms. Allocated memory was 157.3MB in the beginning and 522.2MB in the end (delta: 364.9MB). Free memory was 99.7MB in the beginning and 301.4MB in the end (delta: -201.7MB). Peak memory consumption was 290.7MB. Max. memory is 16.1GB. [2024-11-09 06:55:07,169 INFO L158 Benchmark]: Witness Printer took 6.64ms. Allocated memory is still 522.2MB. Free memory is still 301.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:55:07,175 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory was 74.1MB in the beginning and 73.9MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.95ms. Allocated memory is still 157.3MB. Free memory was 127.9MB in the beginning and 111.4MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.44ms. Allocated memory is still 157.3MB. Free memory was 111.4MB in the beginning and 107.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.94ms. Allocated memory is still 157.3MB. Free memory was 107.4MB in the beginning and 104.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1889.66ms. Allocated memory is still 157.3MB. Free memory was 104.5MB in the beginning and 99.7MB in the end (delta: 4.7MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8693.26ms. Allocated memory was 157.3MB in the beginning and 522.2MB in the end (delta: 364.9MB). Free memory was 99.7MB in the beginning and 301.4MB in the end (delta: -201.7MB). Peak memory consumption was 290.7MB. Max. memory is 16.1GB. * Witness Printer took 6.64ms. Allocated memory is still 522.2MB. Free memory is still 301.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 99, overapproximation of shiftLeft at line 62, overapproximation of someBinaryArithmeticDOUBLEoperation at line 69. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 0; [L23] unsigned short int* var_1_1_Pointer = &(var_1_1); [L24] unsigned char var_1_2 = 0; [L25] unsigned char* var_1_2_Pointer = &(var_1_2); [L26] unsigned short int var_1_4 = 19138; [L27] unsigned short int* var_1_4_Pointer = &(var_1_4); [L28] signed char var_1_6 = 25; [L29] signed char* var_1_6_Pointer = &(var_1_6); [L30] signed long int var_1_7 = -50; [L31] signed long int* var_1_7_Pointer = &(var_1_7); [L32] double var_1_8 = 8.3; [L33] double* var_1_8_Pointer = &(var_1_8); [L34] double var_1_9 = 255.6; [L35] double* var_1_9_Pointer = &(var_1_9); [L36] double var_1_10 = 10000000.375; [L37] double* var_1_10_Pointer = &(var_1_10); [L38] double var_1_11 = 0.0; [L39] double* var_1_11_Pointer = &(var_1_11); [L40] double var_1_12 = 255.375; [L41] double* var_1_12_Pointer = &(var_1_12); [L42] unsigned char var_1_13 = 50; [L43] unsigned char* var_1_13_Pointer = &(var_1_13); [L44] unsigned char var_1_14 = 2; [L45] unsigned char* var_1_14_Pointer = &(var_1_14); [L46] signed char var_1_15 = 1; [L47] signed char* var_1_15_Pointer = &(var_1_15); [L48] signed char var_1_16 = 5; [L49] signed char* var_1_16_Pointer = &(var_1_16); [L103] isInitial = 1 [L104] FCALL initially() [L105] COND TRUE 1 [L106] FCALL updateLastVariables() [L107] CALL updateVariables() [L75] var_1_2 = __VERIFIER_nondet_uchar() [L76] EXPR \read(var_1_2) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L76] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L77] EXPR \read(var_1_2) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L77] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L78] var_1_4 = __VERIFIER_nondet_ushort() [L79] EXPR \read(var_1_4) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L79] CALL assume_abort_if_not(var_1_4 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_4 >= 16383) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L80] EXPR \read(var_1_4) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L80] CALL assume_abort_if_not(var_1_4 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_4 <= 32767) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L81] var_1_9 = __VERIFIER_nondet_double() [L82] EXPR \read(var_1_9) [L82] EXPR var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F [L82] EXPR (var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F ) [L82] EXPR \read(var_1_9) [L82] EXPR var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F [L82] EXPR \read(var_1_9) [L82] EXPR var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F [L82] EXPR (var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L82] CALL assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_9 >= 0.0F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L83] var_1_10 = __VERIFIER_nondet_double() [L84] EXPR \read(var_1_10) [L84] EXPR var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F [L84] EXPR \read(var_1_10) [L84] EXPR var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F [L84] EXPR (var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L84] CALL assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not((var_1_10 >= 0.0F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L85] var_1_11 = __VERIFIER_nondet_double() [L86] EXPR \read(var_1_11) [L86] EXPR var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F [L86] EXPR (var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F ) [L86] EXPR \read(var_1_11) [L86] EXPR var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F [L86] EXPR \read(var_1_11) [L86] EXPR var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F [L86] EXPR (var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L86] CALL assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((var_1_11 >= 4611686.018427382800e+12F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L87] var_1_12 = __VERIFIER_nondet_double() [L88] EXPR \read(var_1_12) [L88] EXPR var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F [L88] EXPR \read(var_1_12) [L88] EXPR var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F [L88] EXPR (var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L88] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L89] var_1_14 = __VERIFIER_nondet_uchar() [L90] EXPR \read(var_1_14) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L90] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L91] EXPR \read(var_1_14) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L91] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L92] var_1_16 = __VERIFIER_nondet_char() [L93] EXPR \read(var_1_16) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L93] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L94] EXPR \read(var_1_16) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L94] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L107] RET updateVariables() [L108] CALL step() [L53] EXPR \read(*var_1_14_Pointer) [L53] (*(var_1_13_Pointer)) = (*(var_1_14_Pointer)) [L54] EXPR \read(*var_1_16_Pointer) [L54] (*(var_1_15_Pointer)) = (*(var_1_16_Pointer)) [L55] EXPR \read(*var_1_2_Pointer) [L55] COND TRUE (*(var_1_2_Pointer)) [L56] EXPR \read(*var_1_13_Pointer) [L56] EXPR \read(*var_1_4_Pointer) [L56] EXPR ((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))) [L56] EXPR \read(*var_1_13_Pointer) [L56] (*(var_1_1_Pointer)) = ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))) [L58] EXPR \read(*var_1_2_Pointer) [L58] (*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer)))) [L58] EXPR \read(*var_1_4_Pointer) [L58] EXPR \read(*var_1_13_Pointer) [L58] EXPR \read(*var_1_1_Pointer) [L58] (*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer)))) [L58] COND FALSE !((*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer))))) [L61] EXPR \read(*var_1_4_Pointer) [L61] unsigned short int stepLocal_0 = (*(var_1_4_Pointer)); [L62] EXPR \read(*var_1_13_Pointer) [L62] EXPR \read(*var_1_13_Pointer) [L62] EXPR \read(*var_1_13_Pointer) [L62] EXPR (*(var_1_13_Pointer)) << (*(var_1_13_Pointer)) [L62] EXPR (((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer)))) [L62] EXPR \read(*var_1_13_Pointer) [L62] EXPR \read(*var_1_13_Pointer) [L62] EXPR (*(var_1_13_Pointer)) << (*(var_1_13_Pointer)) [L62] EXPR (((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer)))) [L62] COND FALSE !(stepLocal_0 <= (((((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))))) [L65] EXPR \read(*var_1_13_Pointer) [L65] EXPR \read(*var_1_1_Pointer) [L65] EXPR \read(*var_1_4_Pointer) [L65] (*(var_1_7_Pointer)) = ((*(var_1_13_Pointer)) + ((*(var_1_1_Pointer)) + (*(var_1_4_Pointer)))) [L67] EXPR \read(*var_1_13_Pointer) [L67] unsigned char stepLocal_1 = (*(var_1_13_Pointer)); [L68] EXPR \read(*var_1_13_Pointer) [L68] COND FALSE !((*(var_1_13_Pointer)) < stepLocal_1) [L71] EXPR \read(*var_1_11_Pointer) [L71] EXPR \read(*var_1_12_Pointer) [L71] EXPR \read(*var_1_9_Pointer) [L71] (*(var_1_8_Pointer)) = (((*(var_1_11_Pointer)) - (*(var_1_12_Pointer))) - (*(var_1_9_Pointer))) [L108] RET step() [L109] CALL, EXPR property() [L99] EXPR \read(*var_1_2_Pointer) [L99] EXPR (*(var_1_2_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))))) : 1 [L99] EXPR \read(*var_1_1_Pointer) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR \read(*var_1_4_Pointer) [L99] EXPR ((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR (*(var_1_2_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))))) : 1 [L99] EXPR ((*(var_1_2_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))))) : 1) && (((*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer))))) ? ((*(var_1_6_Pointer)) == ((signed char) 8)) : 1) [L99] EXPR \read(*var_1_2_Pointer) [L99] EXPR (*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer)))) [L99] EXPR \read(*var_1_4_Pointer) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR \read(*var_1_1_Pointer) [L99] EXPR (*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer)))) [L99] EXPR ((*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer))))) ? ((*(var_1_6_Pointer)) == ((signed char) 8)) : 1 [L99] EXPR ((*(var_1_2_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))))) : 1) && (((*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer))))) ? ((*(var_1_6_Pointer)) == ((signed char) 8)) : 1) [L99] EXPR (((*(var_1_2_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))))) : 1) && (((*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer))))) ? ((*(var_1_6_Pointer)) == ((signed char) 8)) : 1)) && (((*(var_1_4_Pointer)) <= (((((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))))) ? ((*(var_1_7_Pointer)) == ((signed long int) ((((((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) < ((*(var_1_4_Pointer)))) ? (((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) : ((*(var_1_4_Pointer))))))) : ((*(var_1_7_Pointer)) == ((signed long int) ((*(var_1_13_Pointer)) + ((*(var_1_1_Pointer)) + (*(var_1_4_Pointer))))))) [L99] EXPR \read(*var_1_4_Pointer) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR (*(var_1_13_Pointer)) << (*(var_1_13_Pointer)) [L99] EXPR (((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer)))) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR (*(var_1_13_Pointer)) << (*(var_1_13_Pointer)) [L99] EXPR (((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer)))) [L99] EXPR ((*(var_1_4_Pointer)) <= (((((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))))) ? ((*(var_1_7_Pointer)) == ((signed long int) ((((((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) < ((*(var_1_4_Pointer)))) ? (((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) : ((*(var_1_4_Pointer))))))) : ((*(var_1_7_Pointer)) == ((signed long int) ((*(var_1_13_Pointer)) + ((*(var_1_1_Pointer)) + (*(var_1_4_Pointer)))))) [L99] EXPR \read(*var_1_7_Pointer) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR \read(*var_1_4_Pointer) [L99] EXPR ((((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) < ((*(var_1_4_Pointer)))) ? (((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) : ((*(var_1_4_Pointer))) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR \read(*var_1_13_Pointer) [L99] EXPR ((((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) < ((*(var_1_4_Pointer)))) ? (((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) : ((*(var_1_4_Pointer))) [L99] EXPR ((*(var_1_4_Pointer)) <= (((((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))))) ? ((*(var_1_7_Pointer)) == ((signed long int) ((((((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) < ((*(var_1_4_Pointer)))) ? (((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) : ((*(var_1_4_Pointer))))))) : ((*(var_1_7_Pointer)) == ((signed long int) ((*(var_1_13_Pointer)) + ((*(var_1_1_Pointer)) + (*(var_1_4_Pointer)))))) [L99] EXPR (((*(var_1_2_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))))) : 1) && (((*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer))))) ? ((*(var_1_6_Pointer)) == ((signed char) 8)) : 1)) && (((*(var_1_4_Pointer)) <= (((((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))))) ? ((*(var_1_7_Pointer)) == ((signed long int) ((((((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) < ((*(var_1_4_Pointer)))) ? (((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) : ((*(var_1_4_Pointer))))))) : ((*(var_1_7_Pointer)) == ((signed long int) ((*(var_1_13_Pointer)) + ((*(var_1_1_Pointer)) + (*(var_1_4_Pointer))))))) [L99] EXPR ((((*(var_1_2_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))))) : 1) && (((*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer))))) ? ((*(var_1_6_Pointer)) == ((signed char) 8)) : 1)) && (((*(var_1_4_Pointer)) <= (((((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))))) ? ((*(var_1_7_Pointer)) == ((signed long int) ((((((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) < ((*(var_1_4_Pointer)))) ? (((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) : ((*(var_1_4_Pointer))))))) : ((*(var_1_7_Pointer)) == ((signed long int) ((*(var_1_13_Pointer)) + ((*(var_1_1_Pointer)) + (*(var_1_4_Pointer)))))))) && (((*(var_1_13_Pointer)) < (*(var_1_13_Pointer))) ? ((*(var_1_8_Pointer)) == ((double) ((*(var_1_9_Pointer)) - (*(var_1_10_Pointer))))) : ((*(var_1_8_Pointer)) == ((double) (((*(var_1_11_Pointer)) - (*(var_1_12_Pointer))) - (*(var_1_9_Pointer)))))) [L99] EXPR (((((*(var_1_2_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))))) : 1) && (((*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer))))) ? ((*(var_1_6_Pointer)) == ((signed char) 8)) : 1)) && (((*(var_1_4_Pointer)) <= (((((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))))) ? ((*(var_1_7_Pointer)) == ((signed long int) ((((((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) < ((*(var_1_4_Pointer)))) ? (((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) : ((*(var_1_4_Pointer))))))) : ((*(var_1_7_Pointer)) == ((signed long int) ((*(var_1_13_Pointer)) + ((*(var_1_1_Pointer)) + (*(var_1_4_Pointer)))))))) && (((*(var_1_13_Pointer)) < (*(var_1_13_Pointer))) ? ((*(var_1_8_Pointer)) == ((double) ((*(var_1_9_Pointer)) - (*(var_1_10_Pointer))))) : ((*(var_1_8_Pointer)) == ((double) (((*(var_1_11_Pointer)) - (*(var_1_12_Pointer))) - (*(var_1_9_Pointer))))))) && ((*(var_1_13_Pointer)) == ((unsigned char) (*(var_1_14_Pointer)))) [L99] EXPR ((((((*(var_1_2_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))))) : 1) && (((*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer))))) ? ((*(var_1_6_Pointer)) == ((signed char) 8)) : 1)) && (((*(var_1_4_Pointer)) <= (((((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))))) ? ((*(var_1_7_Pointer)) == ((signed long int) ((((((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) < ((*(var_1_4_Pointer)))) ? (((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) : ((*(var_1_4_Pointer))))))) : ((*(var_1_7_Pointer)) == ((signed long int) ((*(var_1_13_Pointer)) + ((*(var_1_1_Pointer)) + (*(var_1_4_Pointer)))))))) && (((*(var_1_13_Pointer)) < (*(var_1_13_Pointer))) ? ((*(var_1_8_Pointer)) == ((double) ((*(var_1_9_Pointer)) - (*(var_1_10_Pointer))))) : ((*(var_1_8_Pointer)) == ((double) (((*(var_1_11_Pointer)) - (*(var_1_12_Pointer))) - (*(var_1_9_Pointer))))))) && ((*(var_1_13_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) && ((*(var_1_15_Pointer)) == ((signed char) (*(var_1_16_Pointer)))) [L99-L100] return ((((((*(var_1_2_Pointer)) ? ((*(var_1_1_Pointer)) == ((unsigned short int) ((17222 - (*(var_1_13_Pointer))) + (((((29916) < ((*(var_1_4_Pointer)))) ? (29916) : ((*(var_1_4_Pointer))))) - (*(var_1_13_Pointer)))))) : 1) && (((*(var_1_2_Pointer)) && ((*(var_1_4_Pointer)) >= ((*(var_1_13_Pointer)) + (*(var_1_1_Pointer))))) ? ((*(var_1_6_Pointer)) == ((signed char) 8)) : 1)) && (((*(var_1_4_Pointer)) <= (((((*(var_1_13_Pointer))) > (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))) ? ((*(var_1_13_Pointer))) : (((*(var_1_13_Pointer)) << (*(var_1_13_Pointer))))))) ? ((*(var_1_7_Pointer)) == ((signed long int) ((((((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) < ((*(var_1_4_Pointer)))) ? (((*(var_1_13_Pointer)) - (*(var_1_13_Pointer)))) : ((*(var_1_4_Pointer))))))) : ((*(var_1_7_Pointer)) == ((signed long int) ((*(var_1_13_Pointer)) + ((*(var_1_1_Pointer)) + (*(var_1_4_Pointer)))))))) && (((*(var_1_13_Pointer)) < (*(var_1_13_Pointer))) ? ((*(var_1_8_Pointer)) == ((double) ((*(var_1_9_Pointer)) - (*(var_1_10_Pointer))))) : ((*(var_1_8_Pointer)) == ((double) (((*(var_1_11_Pointer)) - (*(var_1_12_Pointer))) - (*(var_1_9_Pointer))))))) && ((*(var_1_13_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) && ((*(var_1_15_Pointer)) == ((signed char) (*(var_1_16_Pointer)))) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] [L19] reach_error() VAL [isInitial=1, var_1_10={11:0}, var_1_10_Pointer={11:0}, var_1_11={12:0}, var_1_11_Pointer={12:0}, var_1_12={13:0}, var_1_12_Pointer={13:0}, var_1_13={14:0}, var_1_13_Pointer={14:0}, var_1_14={15:0}, var_1_14_Pointer={15:0}, var_1_15={16:0}, var_1_15_Pointer={16:0}, var_1_16={17:0}, var_1_16_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_4={6:0}, var_1_4_Pointer={6:0}, var_1_6={7:0}, var_1_6_Pointer={7:0}, var_1_7={8:0}, var_1_7_Pointer={8:0}, var_1_8={9:0}, var_1_8_Pointer={9:0}, var_1_9={10:0}, var_1_9_Pointer={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 1, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2024-11-09 06:55:07,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a71ef89e0c9f3635b059609e166e2ca02077ae52d17a785a0f63b8520dafcb51 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:55:10,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:55:10,147 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:55:10,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:55:10,157 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:55:10,200 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:55:10,201 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:55:10,201 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:55:10,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:55:10,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:55:10,205 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:55:10,205 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:55:10,206 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:55:10,206 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:55:10,209 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:55:10,210 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:55:10,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:55:10,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:55:10,212 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:55:10,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:55:10,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:55:10,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:55:10,219 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:55:10,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:55:10,219 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:55:10,220 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:55:10,220 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:55:10,221 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:55:10,221 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:55:10,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:55:10,224 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:55:10,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:55:10,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:55:10,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:55:10,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:55:10,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:55:10,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:55:10,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:55:10,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:55:10,230 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:55:10,230 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:55:10,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:55:10,231 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:55:10,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a71ef89e0c9f3635b059609e166e2ca02077ae52d17a785a0f63b8520dafcb51 [2024-11-09 06:55:10,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:55:10,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:55:10,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:55:10,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:55:10,760 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:55:10,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i Unable to find full path for "g++" [2024-11-09 06:55:13,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:55:13,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:55:13,544 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i [2024-11-09 06:55:13,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/data/04b76a2c3/67dba59ecc374ce6bc8cd8ab4d7c083b/FLAG98727d820 [2024-11-09 06:55:13,897 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/data/04b76a2c3/67dba59ecc374ce6bc8cd8ab4d7c083b [2024-11-09 06:55:13,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:55:13,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:55:13,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:55:13,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:55:13,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:55:13,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:55:13" (1/1) ... [2024-11-09 06:55:13,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58807392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:13, skipping insertion in model container [2024-11-09 06:55:13,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:55:13" (1/1) ... [2024-11-09 06:55:13,945 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:55:14,148 WARN L250 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_026af440-8e32-49dd-a96d-6789ad5c8796/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i[916,929] [2024-11-09 06:55:14,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:55:14,289 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:55:14,329 WARN L250 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_026af440-8e32-49dd-a96d-6789ad5c8796/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-70.i[916,929] [2024-11-09 06:55:14,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:55:14,455 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:55:14,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14 WrapperNode [2024-11-09 06:55:14,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:55:14,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:55:14,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:55:14,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:55:14,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,559 INFO L138 Inliner]: procedures = 36, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 524 [2024-11-09 06:55:14,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:55:14,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:55:14,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:55:14,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:55:14,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,632 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:55:14,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:55:14,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:55:14,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:55:14,665 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (1/1) ... [2024-11-09 06:55:14,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:55:14,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:14,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:55:14,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:55:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:55:14,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-09 06:55:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-09 06:55:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 06:55:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-09 06:55:14,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:55:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 06:55:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2024-11-09 06:55:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:55:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-09 06:55:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:55:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:55:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:55:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:55:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 06:55:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-09 06:55:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:55:14,965 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:55:14,971 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:55:16,942 INFO L? ?]: Removed 135 outVars from TransFormulas that were not future-live. [2024-11-09 06:55:16,942 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:55:16,960 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:55:16,960 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:55:16,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:55:16 BoogieIcfgContainer [2024-11-09 06:55:16,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:55:16,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:55:16,964 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:55:16,967 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:55:16,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:55:13" (1/3) ... [2024-11-09 06:55:16,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d719868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:55:16, skipping insertion in model container [2024-11-09 06:55:16,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:14" (2/3) ... [2024-11-09 06:55:16,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d719868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:55:16, skipping insertion in model container [2024-11-09 06:55:16,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:55:16" (3/3) ... [2024-11-09 06:55:16,970 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-70.i [2024-11-09 06:55:16,991 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:55:16,992 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:55:17,055 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:55:17,062 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@4867b313, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:55:17,062 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:55:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 86 states have (on average 1.441860465116279) internal successors, (124), 87 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:17,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 06:55:17,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:17,088 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:17,088 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:17,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:17,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1015447861, now seen corresponding path program 1 times [2024-11-09 06:55:17,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:17,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520035347] [2024-11-09 06:55:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:17,112 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 [2024-11-09 06:55:17,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:17,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:17,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:17,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:55:17,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-09 06:55:17,743 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:17,744 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:17,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520035347] [2024-11-09 06:55:17,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520035347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:17,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:17,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:55:17,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757271306] [2024-11-09 06:55:17,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:17,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:55:17,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:17,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:55:17,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:55:17,788 INFO L87 Difference]: Start difference. First operand has 101 states, 86 states have (on average 1.441860465116279) internal successors, (124), 87 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:55:17,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:17,822 INFO L93 Difference]: Finished difference Result 195 states and 302 transitions. [2024-11-09 06:55:17,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:55:17,825 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-11-09 06:55:17,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:17,833 INFO L225 Difference]: With dead ends: 195 [2024-11-09 06:55:17,833 INFO L226 Difference]: Without dead ends: 97 [2024-11-09 06:55:17,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:55:17,841 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:17,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:55:17,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-09 06:55:17,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-09 06:55:17,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 83 states have (on average 1.4096385542168675) internal successors, (117), 83 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 141 transitions. [2024-11-09 06:55:17,904 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 141 transitions. Word has length 115 [2024-11-09 06:55:17,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:17,904 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 141 transitions. [2024-11-09 06:55:17,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:55:17,905 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 141 transitions. [2024-11-09 06:55:17,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 06:55:17,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:17,909 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:17,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Ended with exit code 0 [2024-11-09 06:55:18,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:18,110 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:18,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:18,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1553236539, now seen corresponding path program 1 times [2024-11-09 06:55:18,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:18,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743235865] [2024-11-09 06:55:18,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:18,113 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 [2024-11-09 06:55:18,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:18,116 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:18,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:18,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:55:18,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:18,878 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:55:18,878 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:18,879 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:18,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743235865] [2024-11-09 06:55:18,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743235865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:18,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:18,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:18,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927219950] [2024-11-09 06:55:18,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:18,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:55:18,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:18,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:55:18,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:18,884 INFO L87 Difference]: Start difference. First operand 97 states and 141 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:21,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:55:22,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:22,731 INFO L93 Difference]: Finished difference Result 202 states and 296 transitions. [2024-11-09 06:55:22,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:22,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-09 06:55:22,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:22,735 INFO L225 Difference]: With dead ends: 202 [2024-11-09 06:55:22,736 INFO L226 Difference]: Without dead ends: 108 [2024-11-09 06:55:22,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:22,738 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 13 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:22,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 402 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 06:55:22,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-09 06:55:22,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 100. [2024-11-09 06:55:22,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 86 states have (on average 1.3953488372093024) internal successors, (120), 86 states have internal predecessors, (120), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 144 transitions. [2024-11-09 06:55:22,755 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 144 transitions. Word has length 115 [2024-11-09 06:55:22,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:22,757 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 144 transitions. [2024-11-09 06:55:22,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:22,758 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 144 transitions. [2024-11-09 06:55:22,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 06:55:22,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:22,760 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:22,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:22,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:22,961 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:22,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:22,962 INFO L85 PathProgramCache]: Analyzing trace with hash -33347077, now seen corresponding path program 1 times [2024-11-09 06:55:22,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:22,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072817537] [2024-11-09 06:55:22,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:22,963 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 [2024-11-09 06:55:22,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:22,967 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:22,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:23,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:55:23,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:23,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:55:23,504 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:55:23,504 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:23,505 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:23,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072817537] [2024-11-09 06:55:23,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2072817537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:23,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:23,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:23,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474788322] [2024-11-09 06:55:23,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:23,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:55:23,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:23,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:55:23,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:55:23,508 INFO L87 Difference]: Start difference. First operand 100 states and 144 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:24,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:55:25,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:25,067 INFO L93 Difference]: Finished difference Result 197 states and 285 transitions. [2024-11-09 06:55:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:55:25,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-09 06:55:25,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:25,070 INFO L225 Difference]: With dead ends: 197 [2024-11-09 06:55:25,070 INFO L226 Difference]: Without dead ends: 100 [2024-11-09 06:55:25,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:55:25,073 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:25,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 06:55:25,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-09 06:55:25,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-09 06:55:25,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 86 states have internal predecessors, (119), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:25,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2024-11-09 06:55:25,087 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 115 [2024-11-09 06:55:25,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:25,088 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2024-11-09 06:55:25,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:25,089 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2024-11-09 06:55:25,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 06:55:25,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:25,091 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:25,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 06:55:25,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:25,292 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:25,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:25,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1621694979, now seen corresponding path program 1 times [2024-11-09 06:55:25,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:25,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526296169] [2024-11-09 06:55:25,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:25,295 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 [2024-11-09 06:55:25,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:25,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:25,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:25,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:55:25,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:55:25,886 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:25,886 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:25,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526296169] [2024-11-09 06:55:25,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526296169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:25,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:25,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:55:25,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713092167] [2024-11-09 06:55:25,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:25,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:55:25,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:25,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:55:25,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:25,890 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:25,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:25,959 INFO L93 Difference]: Finished difference Result 199 states and 286 transitions. [2024-11-09 06:55:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:55:25,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 115 [2024-11-09 06:55:25,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:25,962 INFO L225 Difference]: With dead ends: 199 [2024-11-09 06:55:25,962 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 06:55:25,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:25,968 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:25,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 403 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:25,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 06:55:25,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-09 06:55:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 88 states have (on average 1.375) internal successors, (121), 88 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2024-11-09 06:55:25,999 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 115 [2024-11-09 06:55:26,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:26,000 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2024-11-09 06:55:26,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:26,001 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2024-11-09 06:55:26,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 06:55:26,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:26,003 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:26,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 06:55:26,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:26,204 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:26,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:26,205 INFO L85 PathProgramCache]: Analyzing trace with hash 827847032, now seen corresponding path program 1 times [2024-11-09 06:55:26,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:26,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329599830] [2024-11-09 06:55:26,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:26,206 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 [2024-11-09 06:55:26,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:26,208 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:26,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:26,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:55:26,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:55:26,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:26,864 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:26,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329599830] [2024-11-09 06:55:26,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [329599830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:26,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:26,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:55:26,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26572874] [2024-11-09 06:55:26,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:26,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:26,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:26,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:26,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:26,868 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:27,019 INFO L93 Difference]: Finished difference Result 208 states and 297 transitions. [2024-11-09 06:55:27,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:27,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2024-11-09 06:55:27,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:27,022 INFO L225 Difference]: With dead ends: 208 [2024-11-09 06:55:27,022 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 06:55:27,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:27,024 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:27,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 644 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:27,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 06:55:27,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2024-11-09 06:55:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 94 states have (on average 1.351063829787234) internal successors, (127), 94 states have internal predecessors, (127), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:27,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 151 transitions. [2024-11-09 06:55:27,036 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 151 transitions. Word has length 117 [2024-11-09 06:55:27,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:27,037 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 151 transitions. [2024-11-09 06:55:27,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:27,038 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 151 transitions. [2024-11-09 06:55:27,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 06:55:27,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:27,040 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:27,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:27,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:27,241 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:27,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:27,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1692112902, now seen corresponding path program 1 times [2024-11-09 06:55:27,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:27,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536569593] [2024-11-09 06:55:27,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:27,243 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 [2024-11-09 06:55:27,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:27,244 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:27,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 06:55:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:27,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:55:27,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:28,014 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:55:28,015 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:28,015 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:28,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536569593] [2024-11-09 06:55:28,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536569593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:28,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:28,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:55:28,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072370004] [2024-11-09 06:55:28,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:28,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:55:28,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:28,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:55:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:55:28,019 INFO L87 Difference]: Start difference. First operand 108 states and 151 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:28,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:28,206 INFO L93 Difference]: Finished difference Result 216 states and 303 transitions. [2024-11-09 06:55:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:55:28,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2024-11-09 06:55:28,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:28,209 INFO L225 Difference]: With dead ends: 216 [2024-11-09 06:55:28,209 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 06:55:28,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:55:28,211 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:28,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 766 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:55:28,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 06:55:28,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-09 06:55:28,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 96 states have (on average 1.34375) internal successors, (129), 96 states have internal predecessors, (129), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 153 transitions. [2024-11-09 06:55:28,222 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 153 transitions. Word has length 117 [2024-11-09 06:55:28,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:28,222 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 153 transitions. [2024-11-09 06:55:28,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:55:28,223 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 153 transitions. [2024-11-09 06:55:28,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 06:55:28,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:28,225 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:28,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-09 06:55:28,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:28,426 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:28,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:28,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1690265860, now seen corresponding path program 1 times [2024-11-09 06:55:28,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:28,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536898711] [2024-11-09 06:55:28,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:28,428 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 [2024-11-09 06:55:28,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:28,432 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:28,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:28,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:55:28,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:29,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:29,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 65 [2024-11-09 06:55:29,327 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-09 06:55:29,327 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:29,327 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:29,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536898711] [2024-11-09 06:55:29,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536898711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:29,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:29,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:29,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532390994] [2024-11-09 06:55:29,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:29,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:29,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:29,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:29,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:29,331 INFO L87 Difference]: Start difference. First operand 110 states and 153 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:55:31,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:55:33,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:33,162 INFO L93 Difference]: Finished difference Result 218 states and 304 transitions. [2024-11-09 06:55:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:55:33,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2024-11-09 06:55:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:33,165 INFO L225 Difference]: With dead ends: 218 [2024-11-09 06:55:33,166 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 06:55:33,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:55:33,167 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 119 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:33,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 401 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 06:55:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 06:55:33,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-09 06:55:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 96 states have (on average 1.3333333333333333) internal successors, (128), 96 states have internal predecessors, (128), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:33,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 152 transitions. [2024-11-09 06:55:33,180 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 152 transitions. Word has length 117 [2024-11-09 06:55:33,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:33,181 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 152 transitions. [2024-11-09 06:55:33,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:55:33,181 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 152 transitions. [2024-11-09 06:55:33,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 06:55:33,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:33,183 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:33,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:33,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:33,384 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:33,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:33,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1350525398, now seen corresponding path program 1 times [2024-11-09 06:55:33,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:33,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813550089] [2024-11-09 06:55:33,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:33,386 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 [2024-11-09 06:55:33,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:33,389 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:33,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-09 06:55:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:33,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:55:33,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:34,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:34,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 65 [2024-11-09 06:55:34,293 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-09 06:55:34,293 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:34,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:34,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813550089] [2024-11-09 06:55:34,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813550089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:34,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:34,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:34,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834123008] [2024-11-09 06:55:34,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:34,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:34,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:34,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:34,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:34,300 INFO L87 Difference]: Start difference. First operand 110 states and 152 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:55:38,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:55:38,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:38,244 INFO L93 Difference]: Finished difference Result 218 states and 302 transitions. [2024-11-09 06:55:38,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:55:38,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-09 06:55:38,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:38,247 INFO L225 Difference]: With dead ends: 218 [2024-11-09 06:55:38,247 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 06:55:38,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:55:38,249 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 111 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:38,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 397 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-09 06:55:38,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 06:55:38,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-09 06:55:38,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 96 states have (on average 1.3229166666666667) internal successors, (127), 96 states have internal predecessors, (127), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 151 transitions. [2024-11-09 06:55:38,258 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 151 transitions. Word has length 119 [2024-11-09 06:55:38,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:38,259 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 151 transitions. [2024-11-09 06:55:38,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:55:38,260 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 151 transitions. [2024-11-09 06:55:38,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-09 06:55:38,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:38,262 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:38,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-09 06:55:38,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:38,462 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:38,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:38,463 INFO L85 PathProgramCache]: Analyzing trace with hash 15076156, now seen corresponding path program 1 times [2024-11-09 06:55:38,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:38,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144856602] [2024-11-09 06:55:38,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:38,464 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 [2024-11-09 06:55:38,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:38,467 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:38,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:39,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:55:39,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:39,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:39,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 157 treesize of output 67 [2024-11-09 06:55:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-09 06:55:39,495 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:39,495 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:39,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144856602] [2024-11-09 06:55:39,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144856602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:39,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:39,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:39,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852843279] [2024-11-09 06:55:39,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:39,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:39,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:39,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:39,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:39,498 INFO L87 Difference]: Start difference. First operand 110 states and 151 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:55:41,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:55:43,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:55:43,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:43,932 INFO L93 Difference]: Finished difference Result 218 states and 300 transitions. [2024-11-09 06:55:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:55:43,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2024-11-09 06:55:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:43,935 INFO L225 Difference]: With dead ends: 218 [2024-11-09 06:55:43,935 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 06:55:43,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:55:43,936 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 102 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:43,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 393 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-09 06:55:43,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 06:55:43,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-09 06:55:43,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 96 states have (on average 1.3125) internal successors, (126), 96 states have internal predecessors, (126), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:43,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 150 transitions. [2024-11-09 06:55:43,956 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 150 transitions. Word has length 121 [2024-11-09 06:55:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:43,957 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 150 transitions. [2024-11-09 06:55:43,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:55:43,958 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 150 transitions. [2024-11-09 06:55:43,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 06:55:43,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:43,960 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:43,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:44,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:44,161 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:44,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:44,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1242432490, now seen corresponding path program 1 times [2024-11-09 06:55:44,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:44,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781219236] [2024-11-09 06:55:44,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:44,163 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 [2024-11-09 06:55:44,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:44,164 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:44,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-09 06:55:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:44,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:55:44,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:45,156 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:45,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 155 treesize of output 65 [2024-11-09 06:55:45,216 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-09 06:55:45,216 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:45,217 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:45,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781219236] [2024-11-09 06:55:45,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781219236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:45,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:45,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:45,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525883999] [2024-11-09 06:55:45,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:45,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:45,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:45,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:45,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:45,219 INFO L87 Difference]: Start difference. First operand 110 states and 150 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:55:47,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:55:50,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:55:50,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:50,675 INFO L93 Difference]: Finished difference Result 218 states and 298 transitions. [2024-11-09 06:55:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:55:50,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 123 [2024-11-09 06:55:50,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:50,677 INFO L225 Difference]: With dead ends: 218 [2024-11-09 06:55:50,678 INFO L226 Difference]: Without dead ends: 111 [2024-11-09 06:55:50,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:55:50,679 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 92 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:50,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 387 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-09 06:55:50,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-09 06:55:50,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-11-09 06:55:50,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 96 states have (on average 1.3020833333333333) internal successors, (125), 96 states have internal predecessors, (125), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:50,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 149 transitions. [2024-11-09 06:55:50,686 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 149 transitions. Word has length 123 [2024-11-09 06:55:50,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:50,687 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 149 transitions. [2024-11-09 06:55:50,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 06:55:50,687 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 149 transitions. [2024-11-09 06:55:50,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-09 06:55:50,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:50,689 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:50,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-09 06:55:50,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:50,890 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:50,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:50,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1994442298, now seen corresponding path program 1 times [2024-11-09 06:55:50,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:50,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402585498] [2024-11-09 06:55:50,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:50,892 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 [2024-11-09 06:55:50,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:50,893 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:50,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:51,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:55:51,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:51,512 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-09 06:55:51,512 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:55:51,512 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:51,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402585498] [2024-11-09 06:55:51,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402585498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:51,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:51,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:55:51,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586924527] [2024-11-09 06:55:51,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:51,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:55:51,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:55:51,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:55:51,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:51,515 INFO L87 Difference]: Start difference. First operand 110 states and 149 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 06:55:51,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:51,855 INFO L93 Difference]: Finished difference Result 221 states and 300 transitions. [2024-11-09 06:55:51,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:55:51,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 125 [2024-11-09 06:55:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:51,858 INFO L225 Difference]: With dead ends: 221 [2024-11-09 06:55:51,858 INFO L226 Difference]: Without dead ends: 112 [2024-11-09 06:55:51,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:55:51,859 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 1 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:51,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 569 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:55:51,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-09 06:55:51,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2024-11-09 06:55:51,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 96 states have internal predecessors, (124), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:55:51,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 148 transitions. [2024-11-09 06:55:51,865 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 148 transitions. Word has length 125 [2024-11-09 06:55:51,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:51,866 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 148 transitions. [2024-11-09 06:55:51,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 06:55:51,866 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2024-11-09 06:55:51,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-09 06:55:51,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:51,868 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:51,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:55:52,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:55:52,069 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:55:52,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:52,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1792618364, now seen corresponding path program 1 times [2024-11-09 06:55:52,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:55:52,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658205619] [2024-11-09 06:55:52,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:52,070 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 [2024-11-09 06:55:52,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:55:52,071 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:55:52,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 06:55:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:52,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 06:55:52,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:55,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:55:56,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:55:57,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:55:58,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:55:59,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:56:00,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:56:00,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:56:01,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2024-11-09 06:56:01,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:01,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:02,146 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 06:56:02,146 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:02,446 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_362 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_363 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 8) ((_ extract 7 0) (select (select (store (store |c_#memory_int| c_~var_1_7_Pointer~0.base v_ArrVal_362) c_~var_1_8_Pointer~0.base v_ArrVal_363) c_~var_1_2_Pointer~0.base) c_~var_1_2_Pointer~0.offset)))) is different from false [2024-11-09 06:56:02,931 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:56:02,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658205619] [2024-11-09 06:56:02,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658205619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:02,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1341742895] [2024-11-09 06:56:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:02,932 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:56:02,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:56:02,933 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:56:02,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-09 06:56:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:04,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 06:56:04,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:05,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 06:56:06,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:07,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:08,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:10,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:10,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:11,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:12,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:13,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2024-11-09 06:56:13,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2024-11-09 06:56:13,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2024-11-09 06:56:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 06:56:13,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:13,875 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_404 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 8) ((_ extract 7 0) (select (select (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_404) c_~var_1_2_Pointer~0.base) c_~var_1_2_Pointer~0.offset)))) is different from false [2024-11-09 06:56:13,899 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_403 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_404 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 8) ((_ extract 7 0) (select (select (store (store |c_#memory_int| c_~var_1_7_Pointer~0.base v_ArrVal_403) c_~var_1_8_Pointer~0.base v_ArrVal_404) c_~var_1_2_Pointer~0.base) c_~var_1_2_Pointer~0.offset)))) is different from false [2024-11-09 06:56:14,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1341742895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:14,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930117810] [2024-11-09 06:56:14,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:14,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:14,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:56:14,374 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:14,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 06:56:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:16,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:56:16,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:18,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:18,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:56:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:56:18,201 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:18,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930117810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:18,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:56:18,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19, 15] total 34 [2024-11-09 06:56:18,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888436716] [2024-11-09 06:56:18,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:18,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:56:18,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:18,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:56:18,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1307, Unknown=79, NotChecked=240, Total=1892 [2024-11-09 06:56:18,205 INFO L87 Difference]: Start difference. First operand 110 states and 148 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:56:20,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:22,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:24,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:24,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:24,847 INFO L93 Difference]: Finished difference Result 261 states and 351 transitions. [2024-11-09 06:56:24,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:24,848 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 125 [2024-11-09 06:56:24,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:24,850 INFO L225 Difference]: With dead ends: 261 [2024-11-09 06:56:24,850 INFO L226 Difference]: Without dead ends: 154 [2024-11-09 06:56:24,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=279, Invalid=1375, Unknown=80, NotChecked=246, Total=1980 [2024-11-09 06:56:24,853 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 206 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:24,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 298 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-09 06:56:24,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-09 06:56:24,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 120. [2024-11-09 06:56:24,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 106 states have internal predecessors, (137), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:56:24,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 161 transitions. [2024-11-09 06:56:24,863 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 161 transitions. Word has length 125 [2024-11-09 06:56:24,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:24,864 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 161 transitions. [2024-11-09 06:56:24,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:56:24,864 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 161 transitions. [2024-11-09 06:56:24,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 06:56:24,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:24,867 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:24,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:25,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-09 06:56:25,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:25,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:25,468 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:56:25,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1616186718, now seen corresponding path program 1 times [2024-11-09 06:56:25,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:56:25,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303121474] [2024-11-09 06:56:25,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:25,469 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 [2024-11-09 06:56:25,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:56:25,470 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:56:25,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:56:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:26,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:56:26,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:56:26,119 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:26,119 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:56:26,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303121474] [2024-11-09 06:56:26,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303121474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:26,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:26,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:56:26,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253095011] [2024-11-09 06:56:26,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:26,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:56:26,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:26,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:56:26,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:56:26,121 INFO L87 Difference]: Start difference. First operand 120 states and 161 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:56:29,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:30,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:30,253 INFO L93 Difference]: Finished difference Result 270 states and 363 transitions. [2024-11-09 06:56:30,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:56:30,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2024-11-09 06:56:30,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:30,255 INFO L225 Difference]: With dead ends: 270 [2024-11-09 06:56:30,255 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 06:56:30,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:56:30,256 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 37 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:30,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 369 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-09 06:56:30,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 06:56:30,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 122. [2024-11-09 06:56:30,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 108 states have (on average 1.287037037037037) internal successors, (139), 108 states have internal predecessors, (139), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:56:30,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 163 transitions. [2024-11-09 06:56:30,267 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 163 transitions. Word has length 126 [2024-11-09 06:56:30,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:30,267 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 163 transitions. [2024-11-09 06:56:30,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:56:30,268 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 163 transitions. [2024-11-09 06:56:30,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-09 06:56:30,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:30,270 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:30,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:56:30,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:56:30,470 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:56:30,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:30,471 INFO L85 PathProgramCache]: Analyzing trace with hash 387799650, now seen corresponding path program 1 times [2024-11-09 06:56:30,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:56:30,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795407492] [2024-11-09 06:56:30,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:30,471 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 [2024-11-09 06:56:30,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:56:30,473 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:56:30,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-09 06:56:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:31,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:56:31,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:31,126 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:56:31,126 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:31,126 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:56:31,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795407492] [2024-11-09 06:56:31,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795407492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:31,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:56:31,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:56:31,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204765584] [2024-11-09 06:56:31,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:31,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:56:31,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:31,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:56:31,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:56:31,128 INFO L87 Difference]: Start difference. First operand 122 states and 163 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:56:31,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:31,194 INFO L93 Difference]: Finished difference Result 244 states and 327 transitions. [2024-11-09 06:56:31,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:56:31,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2024-11-09 06:56:31,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:31,197 INFO L225 Difference]: With dead ends: 244 [2024-11-09 06:56:31,197 INFO L226 Difference]: Without dead ends: 125 [2024-11-09 06:56:31,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:56:31,198 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:31,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 511 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:56:31,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-09 06:56:31,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-09 06:56:31,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 111 states have internal predecessors, (142), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:56:31,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 166 transitions. [2024-11-09 06:56:31,211 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 166 transitions. Word has length 126 [2024-11-09 06:56:31,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:31,211 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 166 transitions. [2024-11-09 06:56:31,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:56:31,212 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 166 transitions. [2024-11-09 06:56:31,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 06:56:31,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:31,213 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:31,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-09 06:56:31,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:56:31,414 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:56:31,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 523170103, now seen corresponding path program 1 times [2024-11-09 06:56:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:56:31,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88214177] [2024-11-09 06:56:31,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:31,416 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 [2024-11-09 06:56:31,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:56:31,419 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:56:31,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:56:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:32,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 06:56:32,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:33,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:56:35,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:56:36,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:56:37,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:56:37,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:56:38,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:56:38,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:56:39,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2024-11-09 06:56:39,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2024-11-09 06:56:39,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 45 [2024-11-09 06:56:39,953 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 06:56:39,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:42,288 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_13_Pointer~0.offset (_ BitVec 32)) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (|v_ULTIMATE.start_step_#t~mem12#1_16| (_ BitVec 8)) (v_ArrVal_534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_535 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_535) c_~var_1_15_Pointer~0.base v_ArrVal_534))) (let ((.cse1 ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv47138 32) (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))))))))) (bvsge ((_ zero_extend 16) ((_ extract 15 0) (select (select (store .cse0 c_~var_1_1_Pointer~0.base (store (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset .cse1)) c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvadd ((_ zero_extend 24) |v_ULTIMATE.start_step_#t~mem12#1_16|) ((_ zero_extend 16) ((_ extract 15 0) .cse1)))))))) is different from false [2024-11-09 06:56:42,359 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:56:42,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88214177] [2024-11-09 06:56:42,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88214177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:42,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1092743135] [2024-11-09 06:56:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:42,360 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:56:42,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:56:42,364 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:56:42,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-09 06:56:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:45,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 06:56:45,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:48,856 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 06:56:48,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 06:56:48,910 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 06:56:48,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 06:56:48,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 06:56:49,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2024-11-09 06:56:49,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2024-11-09 06:56:50,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 67 [2024-11-09 06:56:51,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 67 [2024-11-09 06:56:52,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 79 [2024-11-09 06:56:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:56:52,846 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:52,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1092743135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:52,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:56:52,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18] total 32 [2024-11-09 06:56:52,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52669719] [2024-11-09 06:56:52,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:52,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:56:52,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:52,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:56:52,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1193, Unknown=1, NotChecked=70, Total=1406 [2024-11-09 06:56:52,850 INFO L87 Difference]: Start difference. First operand 125 states and 166 transitions. Second operand has 16 states, 16 states have (on average 4.375) internal successors, (70), 15 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:57:08,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:11,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:12,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:13,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:57:13,401 INFO L93 Difference]: Finished difference Result 363 states and 477 transitions. [2024-11-09 06:57:13,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 06:57:13,402 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.375) internal successors, (70), 15 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-09 06:57:13,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:57:13,404 INFO L225 Difference]: With dead ends: 363 [2024-11-09 06:57:13,404 INFO L226 Difference]: Without dead ends: 241 [2024-11-09 06:57:13,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=281, Invalid=2374, Unknown=1, NotChecked=100, Total=2756 [2024-11-09 06:57:13,406 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 338 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:57:13,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 897 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 17.5s Time] [2024-11-09 06:57:13,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-09 06:57:13,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 145. [2024-11-09 06:57:13,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 130 states have (on average 1.2846153846153847) internal successors, (167), 130 states have internal predecessors, (167), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:57:13,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 191 transitions. [2024-11-09 06:57:13,424 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 191 transitions. Word has length 127 [2024-11-09 06:57:13,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:57:13,425 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 191 transitions. [2024-11-09 06:57:13,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.375) internal successors, (70), 15 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:57:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 191 transitions. [2024-11-09 06:57:13,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 06:57:13,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:57:13,427 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:13,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-09 06:57:13,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:13,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:57:13,828 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:57:13,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:13,828 INFO L85 PathProgramCache]: Analyzing trace with hash -497898251, now seen corresponding path program 1 times [2024-11-09 06:57:13,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:57:13,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44532178] [2024-11-09 06:57:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:13,829 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 [2024-11-09 06:57:13,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:57:13,831 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:57:13,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:57:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:14,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-09 06:57:14,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:17,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:19,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:20,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:21,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:22,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:24,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:24,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:25,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2024-11-09 06:57:26,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:57:26,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:57:26,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:57:26,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:57:26,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-09 06:57:26,992 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 06:57:26,992 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:27,374 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_620 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_621 (Array (_ BitVec 32) (_ BitVec 32)))) (bvslt (_ bv29916 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select (store (store |c_#memory_int| c_~var_1_7_Pointer~0.base v_ArrVal_620) c_~var_1_8_Pointer~0.base v_ArrVal_621) c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) is different from false [2024-11-09 06:57:27,406 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_620 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_621 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_619 (Array (_ BitVec 32) (_ BitVec 32)))) (bvslt (_ bv29916 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select (store (store (store |c_#memory_int| c_~var_1_6_Pointer~0.base v_ArrVal_619) c_~var_1_7_Pointer~0.base v_ArrVal_620) c_~var_1_8_Pointer~0.base v_ArrVal_621) c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) is different from false [2024-11-09 06:57:27,439 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_620 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_621 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_619 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_618 (Array (_ BitVec 32) (_ BitVec 32)))) (bvslt (_ bv29916 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select (store (store (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_618) c_~var_1_6_Pointer~0.base v_ArrVal_619) c_~var_1_7_Pointer~0.base v_ArrVal_620) c_~var_1_8_Pointer~0.base v_ArrVal_621) c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) is different from false [2024-11-09 06:57:28,110 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:57:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44532178] [2024-11-09 06:57:28,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44532178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:28,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2110401312] [2024-11-09 06:57:28,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:28,111 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:57:28,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:57:28,112 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:57:28,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-09 06:57:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:29,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:57:29,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:32,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:32,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:32,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:33,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:33,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-09 06:57:35,224 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:57:35,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:57:35,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2110401312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:35,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:57:35,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21] total 29 [2024-11-09 06:57:35,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231861693] [2024-11-09 06:57:35,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:35,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:57:35,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:57:35,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:57:35,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=950, Unknown=32, NotChecked=204, Total=1406 [2024-11-09 06:57:35,228 INFO L87 Difference]: Start difference. First operand 145 states and 191 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:57:40,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:57:40,814 INFO L93 Difference]: Finished difference Result 339 states and 446 transitions. [2024-11-09 06:57:40,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:57:40,815 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-09 06:57:40,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:57:40,817 INFO L225 Difference]: With dead ends: 339 [2024-11-09 06:57:40,817 INFO L226 Difference]: Without dead ends: 197 [2024-11-09 06:57:40,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=234, Invalid=1006, Unknown=32, NotChecked=210, Total=1482 [2024-11-09 06:57:40,818 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 144 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:57:40,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 450 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-09 06:57:40,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-09 06:57:40,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 153. [2024-11-09 06:57:40,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 138 states have (on average 1.2826086956521738) internal successors, (177), 138 states have internal predecessors, (177), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:57:40,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 201 transitions. [2024-11-09 06:57:40,834 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 201 transitions. Word has length 127 [2024-11-09 06:57:40,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:57:40,835 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 201 transitions. [2024-11-09 06:57:40,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:57:40,835 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 201 transitions. [2024-11-09 06:57:40,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 06:57:40,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:57:40,836 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:40,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:41,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:41,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:57:41,237 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:57:41,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:41,238 INFO L85 PathProgramCache]: Analyzing trace with hash 304315385, now seen corresponding path program 1 times [2024-11-09 06:57:41,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:57:41,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374960319] [2024-11-09 06:57:41,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:41,239 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 [2024-11-09 06:57:41,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:57:41,242 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:57:41,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:57:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:42,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 06:57:42,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:43,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:44,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:45,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:46,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:47,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:47,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:47,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:57:48,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2024-11-09 06:57:48,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2024-11-09 06:57:48,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 45 [2024-11-09 06:57:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 06:57:48,898 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:49,947 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_13_Pointer~0.offset (_ BitVec 32)) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (|v_ULTIMATE.start_step_#t~mem12#1_27| (_ BitVec 8)) (v_ArrVal_699 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_700 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_700) c_~var_1_15_Pointer~0.base v_ArrVal_699))) (let ((.cse1 ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv47138 32) (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))))))))) (bvsge ((_ zero_extend 16) ((_ extract 15 0) (select (select (store .cse0 c_~var_1_1_Pointer~0.base (store (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset .cse1)) c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) .cse1)) ((_ zero_extend 24) |v_ULTIMATE.start_step_#t~mem12#1_27|))))))) is different from false [2024-11-09 06:57:49,992 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:57:49,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374960319] [2024-11-09 06:57:49,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374960319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:49,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2047740890] [2024-11-09 06:57:49,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:49,993 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:57:49,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:57:49,994 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:57:49,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-09 06:57:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:52,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 06:57:52,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:55,335 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 06:57:55,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 06:57:55,377 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 06:57:55,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 06:57:55,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 06:57:56,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2024-11-09 06:57:56,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2024-11-09 06:57:57,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2024-11-09 06:57:57,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 51 [2024-11-09 06:57:58,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 67 [2024-11-09 06:57:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:57:58,795 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:57:58,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2047740890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:58,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:57:58,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18] total 32 [2024-11-09 06:57:58,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373679031] [2024-11-09 06:57:58,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:58,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 06:57:58,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:57:58,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 06:57:58,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1191, Unknown=1, NotChecked=70, Total=1406 [2024-11-09 06:57:58,797 INFO L87 Difference]: Start difference. First operand 153 states and 201 transitions. Second operand has 16 states, 16 states have (on average 4.375) internal successors, (70), 15 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:58:04,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:13,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:15,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:16,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:17,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:17,647 INFO L93 Difference]: Finished difference Result 396 states and 516 transitions. [2024-11-09 06:58:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 06:58:17,648 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.375) internal successors, (70), 15 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-09 06:58:17,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:17,650 INFO L225 Difference]: With dead ends: 396 [2024-11-09 06:58:17,650 INFO L226 Difference]: Without dead ends: 246 [2024-11-09 06:58:17,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=279, Invalid=2274, Unknown=1, NotChecked=98, Total=2652 [2024-11-09 06:58:17,652 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 292 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:17,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 921 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2024-11-09 06:58:17,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-09 06:58:17,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 155. [2024-11-09 06:58:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 140 states have (on average 1.2857142857142858) internal successors, (180), 140 states have internal predecessors, (180), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:58:17,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 204 transitions. [2024-11-09 06:58:17,679 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 204 transitions. Word has length 127 [2024-11-09 06:58:17,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:17,680 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 204 transitions. [2024-11-09 06:58:17,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.375) internal successors, (70), 15 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:58:17,681 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 204 transitions. [2024-11-09 06:58:17,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 06:58:17,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:17,683 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:17,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:17,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:18,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:58:18,084 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:58:18,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:18,084 INFO L85 PathProgramCache]: Analyzing trace with hash 13697013, now seen corresponding path program 1 times [2024-11-09 06:58:18,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:18,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591898879] [2024-11-09 06:58:18,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:18,085 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 [2024-11-09 06:58:18,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:18,086 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:58:18,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:58:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:18,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-09 06:58:18,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:20,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:58:23,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:58:24,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:58:25,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:58:26,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:58:27,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:58:28,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:58:28,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2024-11-09 06:58:29,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:58:29,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:58:29,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:58:29,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:58:29,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-09 06:58:32,483 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 06:58:32,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:34,910 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:34,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591898879] [2024-11-09 06:58:34,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591898879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:58:34,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [379031224] [2024-11-09 06:58:34,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:34,911 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:58:34,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:58:34,914 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:58:34,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-09 06:58:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:36,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:58:36,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:39,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:58:39,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:58:39,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:58:39,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:58:39,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-09 06:58:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:58:42,384 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:58:42,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [379031224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:58:42,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:58:42,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [21] total 24 [2024-11-09 06:58:42,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872727019] [2024-11-09 06:58:42,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:58:42,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:58:42,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:42,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:58:42,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=821, Unknown=54, NotChecked=0, Total=1056 [2024-11-09 06:58:42,386 INFO L87 Difference]: Start difference. First operand 155 states and 204 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:58:47,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:58:48,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:48,460 INFO L93 Difference]: Finished difference Result 351 states and 460 transitions. [2024-11-09 06:58:48,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:58:48,461 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-09 06:58:48,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:48,463 INFO L225 Difference]: With dead ends: 351 [2024-11-09 06:58:48,463 INFO L226 Difference]: Without dead ends: 199 [2024-11-09 06:58:48,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=200, Invalid=868, Unknown=54, NotChecked=0, Total=1122 [2024-11-09 06:58:48,464 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 177 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:48,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 443 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-09 06:58:48,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-09 06:58:48,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 155. [2024-11-09 06:58:48,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 140 states have (on average 1.2785714285714285) internal successors, (179), 140 states have internal predecessors, (179), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:58:48,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2024-11-09 06:58:48,481 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 127 [2024-11-09 06:58:48,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:48,482 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2024-11-09 06:58:48,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:58:48,483 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2024-11-09 06:58:48,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 06:58:48,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:48,484 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:48,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:48,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:48,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:58:48,885 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:58:48,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:48,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1007371341, now seen corresponding path program 1 times [2024-11-09 06:58:48,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:48,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4343295] [2024-11-09 06:58:48,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:48,886 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 [2024-11-09 06:58:48,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:48,888 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:58:48,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:58:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:49,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-09 06:58:49,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:51,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:58:53,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:58:54,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:58:55,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:58:56,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:58:57,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:58:57,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:58:58,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-09 06:58:58,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2024-11-09 06:58:58,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 54 [2024-11-09 06:58:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 244 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 06:58:59,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:00,255 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_13_Pointer~0.offset (_ BitVec 32)) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (|v_ULTIMATE.start_step_#t~mem12#1_38| (_ BitVec 8)) (v_ArrVal_864 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_865 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_865) c_~var_1_15_Pointer~0.base v_ArrVal_864))) (let ((.cse2 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (or (not (let ((.cse1 ((_ sign_extend 16) ((_ extract 15 0) (bvadd (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset))))) (_ bv17222 32) .cse2))))) (bvsge ((_ zero_extend 16) ((_ extract 15 0) (select (select (store .cse0 c_~var_1_1_Pointer~0.base (store (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset .cse1)) c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) .cse1)) ((_ zero_extend 24) |v_ULTIMATE.start_step_#t~mem12#1_38|))))) (bvslt (_ bv29916 32) .cse2))))) is different from false [2024-11-09 06:59:00,400 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:59:00,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4343295] [2024-11-09 06:59:00,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4343295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:00,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [462094286] [2024-11-09 06:59:00,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:00,401 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:59:00,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:59:00,405 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:59:00,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-09 06:59:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:03,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:59:03,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:05,423 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 06:59:05,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 06:59:05,475 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 06:59:05,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 06:59:06,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2024-11-09 06:59:06,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 56 [2024-11-09 06:59:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:59:06,557 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:59:06,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [462094286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:06,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:59:06,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22] total 27 [2024-11-09 06:59:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447914216] [2024-11-09 06:59:06,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:06,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:59:06,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:59:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:59:06,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=830, Unknown=1, NotChecked=60, Total=1056 [2024-11-09 06:59:06,560 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:59:11,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:11,040 INFO L93 Difference]: Finished difference Result 317 states and 414 transitions. [2024-11-09 06:59:11,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:59:11,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-09 06:59:11,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:11,042 INFO L225 Difference]: With dead ends: 317 [2024-11-09 06:59:11,042 INFO L226 Difference]: Without dead ends: 165 [2024-11-09 06:59:11,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=215, Invalid=1194, Unknown=1, NotChecked=72, Total=1482 [2024-11-09 06:59:11,044 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 101 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:11,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 309 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 06:59:11,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-09 06:59:11,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 154. [2024-11-09 06:59:11,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 139 states have (on average 1.2733812949640289) internal successors, (177), 139 states have internal predecessors, (177), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 06:59:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2024-11-09 06:59:11,061 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 127 [2024-11-09 06:59:11,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:11,062 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2024-11-09 06:59:11,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:59:11,062 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2024-11-09 06:59:11,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 06:59:11,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:11,064 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:11,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-09 06:59:11,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:11,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:59:11,464 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:59:11,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:11,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1141384847, now seen corresponding path program 1 times [2024-11-09 06:59:11,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:59:11,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875919948] [2024-11-09 06:59:11,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:11,466 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 [2024-11-09 06:59:11,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:59:11,467 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 06:59:11,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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 [2024-11-09 06:59:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:12,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-09 06:59:12,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:14,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:59:17,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:59:18,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:59:19,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:59:20,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:59:21,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:59:22,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 06:59:23,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-09 06:59:23,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2024-11-09 06:59:25,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 88 [2024-11-09 06:59:25,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 88 [2024-11-09 06:59:26,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 95 [2024-11-09 06:59:27,131 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 244 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 06:59:27,131 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:28,009 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_945 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_945))) (= ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (_ bv17222 32) (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))))))))) is different from false [2024-11-09 06:59:33,618 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_13_Pointer~0.offset (_ BitVec 32)) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_945 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_941 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_942 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_944 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_941) c_~var_1_15_Pointer~0.base v_ArrVal_942))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse5 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (let ((.cse4 (store .cse5 c_~var_1_1_Pointer~0.base (store (select .cse5 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse5 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset))))) .cse0))))))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse4 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset))))) (let ((.cse2 (bvshl .cse1 .cse1))) (or (bvslt (_ bv29916 32) .cse0) (bvsgt .cse1 .cse2) (let ((.cse3 (store (store .cse4 c_~var_1_7_Pointer~0.base v_ArrVal_944) c_~var_1_8_Pointer~0.base v_ArrVal_945))) (= ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse3 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse3 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset))))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse3 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))))))) (bvsle ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse4 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) .cse2)))))))) is different from false [2024-11-09 06:59:33,995 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:59:33,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875919948] [2024-11-09 06:59:33,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875919948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:33,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1918122874] [2024-11-09 06:59:33,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:33,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:59:33,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:59:33,997 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:59:33,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-09 06:59:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:36,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-09 06:59:36,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:40,273 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 06:59:40,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 06:59:40,322 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 06:59:40,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 06:59:40,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 06:59:41,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2024-11-09 06:59:43,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 88 [2024-11-09 06:59:44,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 88 [2024-11-09 06:59:46,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 97 [2024-11-09 06:59:46,454 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 06:59:46,454 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:59:46,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1918122874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:46,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:59:46,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [29] total 40 [2024-11-09 06:59:46,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691747949] [2024-11-09 06:59:46,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:46,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:59:46,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:59:46,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:59:46,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=2307, Unknown=11, NotChecked=198, Total=2756 [2024-11-09 06:59:46,458 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 06:59:57,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:04,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:08,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:08,314 INFO L93 Difference]: Finished difference Result 397 states and 515 transitions. [2024-11-09 07:00:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 07:00:08,316 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-09 07:00:08,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:08,317 INFO L225 Difference]: With dead ends: 397 [2024-11-09 07:00:08,317 INFO L226 Difference]: Without dead ends: 246 [2024-11-09 07:00:08,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1260 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=428, Invalid=3859, Unknown=11, NotChecked=258, Total=4556 [2024-11-09 07:00:08,320 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 290 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:08,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 899 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2024-11-09 07:00:08,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-09 07:00:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 160. [2024-11-09 07:00:08,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 145 states have (on average 1.2758620689655173) internal successors, (185), 145 states have internal predecessors, (185), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:00:08,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2024-11-09 07:00:08,336 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 127 [2024-11-09 07:00:08,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:08,337 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2024-11-09 07:00:08,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:00:08,337 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2024-11-09 07:00:08,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 07:00:08,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:08,339 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:08,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-09 07:00:08,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 07:00:08,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:00:08,740 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:00:08,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:08,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1360239565, now seen corresponding path program 1 times [2024-11-09 07:00:08,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:00:08,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271339622] [2024-11-09 07:00:08,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:08,741 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 [2024-11-09 07:00:08,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:00:08,742 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:00:08,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-09 07:00:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:09,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 07:00:09,718 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:00:11,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:00:12,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:00:13,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:00:14,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:00:15,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:00:15,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:00:16,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:00:17,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-11-09 07:00:17,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 34 [2024-11-09 07:00:17,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 37 [2024-11-09 07:00:17,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 37 [2024-11-09 07:00:18,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 60 [2024-11-09 07:00:18,663 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:00:18,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:00:19,397 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1024 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_1024))) (= ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (bvadd (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))) (_ bv17222 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))))))) is different from false [2024-11-09 07:00:19,828 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1023 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1024 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_1_Pointer~0.offset (_ BitVec 32))) (let ((.cse0 (store (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) |c_ULTIMATE.start_step_#t~ite10#1| (bvneg ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem7#1|)) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))))))) c_~var_1_7_Pointer~0.base v_ArrVal_1023) c_~var_1_8_Pointer~0.base v_ArrVal_1024))) (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvmul (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset)))) (_ bv2 32)) (_ bv17222 32)))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset)))))) is different from false [2024-11-09 07:00:19,910 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1023 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1024 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_1_Pointer~0.offset (_ BitVec 32))) (let ((.cse0 (store (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) (bvneg ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem7#1|)) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset)))) ((_ zero_extend 16) ((_ extract 15 0) (select (select |c_#memory_int| c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))))))) c_~var_1_7_Pointer~0.base v_ArrVal_1023) c_~var_1_8_Pointer~0.base v_ArrVal_1024))) (= ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (_ bv17222 32) (bvmul (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset)))) (_ bv2 32)))))))) is different from false [2024-11-09 07:00:19,975 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1023 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1024 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_13_Pointer~0.offset (_ BitVec 32)) (~var_1_1_Pointer~0.offset (_ BitVec 32))) (let ((.cse0 (store (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) (bvmul (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))) (_ bv2 32)) ((_ zero_extend 16) ((_ extract 15 0) (select (select |c_#memory_int| c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))))))) c_~var_1_7_Pointer~0.base v_ArrVal_1023) c_~var_1_8_Pointer~0.base v_ArrVal_1024))) (= ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvmul (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))) (_ bv2 32)))))))) is different from false [2024-11-09 07:00:20,064 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1020 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1023 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1024 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1021 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_13_Pointer~0.offset (_ BitVec 32)) (~var_1_1_Pointer~0.offset (_ BitVec 32))) (let ((.cse0 (store (store (let ((.cse1 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_1020) c_~var_1_15_Pointer~0.base v_ArrVal_1021))) (store .cse1 c_~var_1_1_Pointer~0.base (store (select .cse1 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse1 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset))))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))))))) c_~var_1_7_Pointer~0.base v_ArrVal_1023) c_~var_1_8_Pointer~0.base v_ArrVal_1024))) (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvmul (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))) (_ bv2 32))))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset)))))) is different from false [2024-11-09 07:00:20,206 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:00:20,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271339622] [2024-11-09 07:00:20,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271339622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:00:20,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [839965407] [2024-11-09 07:00:20,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:20,207 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:00:20,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:00:20,210 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:00:20,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-09 07:00:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:23,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 07:00:23,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:00:26,232 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 07:00:26,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 07:00:26,284 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 07:00:26,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 07:00:26,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2024-11-09 07:00:28,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 69 [2024-11-09 07:00:28,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 69 [2024-11-09 07:00:29,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 84 [2024-11-09 07:00:29,877 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:00:29,877 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:00:29,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [839965407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:29,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:00:29,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [19] total 29 [2024-11-09 07:00:29,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276606245] [2024-11-09 07:00:29,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:29,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 07:00:29,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:00:29,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 07:00:29,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1018, Unknown=22, NotChecked=350, Total=1560 [2024-11-09 07:00:29,879 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:00:35,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:42,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:51,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:51,892 INFO L93 Difference]: Finished difference Result 413 states and 535 transitions. [2024-11-09 07:00:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 07:00:51,893 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-09 07:00:51,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:51,894 INFO L225 Difference]: With dead ends: 413 [2024-11-09 07:00:51,895 INFO L226 Difference]: Without dead ends: 256 [2024-11-09 07:00:51,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=361, Invalid=1986, Unknown=25, NotChecked=490, Total=2862 [2024-11-09 07:00:51,896 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 279 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:51,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 1058 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1400 Invalid, 1 Unknown, 0 Unchecked, 19.4s Time] [2024-11-09 07:00:51,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-09 07:00:51,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 162. [2024-11-09 07:00:51,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 147 states have (on average 1.2789115646258504) internal successors, (188), 147 states have internal predecessors, (188), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:00:51,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 212 transitions. [2024-11-09 07:00:51,912 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 212 transitions. Word has length 127 [2024-11-09 07:00:51,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:51,913 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 212 transitions. [2024-11-09 07:00:51,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:00:51,913 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 212 transitions. [2024-11-09 07:00:51,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:00:51,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:51,914 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:51,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-09 07:00:52,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2024-11-09 07:00:52,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:00:52,315 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:00:52,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:52,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1573402450, now seen corresponding path program 1 times [2024-11-09 07:00:52,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:00:52,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774428744] [2024-11-09 07:00:52,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:52,316 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 [2024-11-09 07:00:52,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:00:52,317 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:00:52,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-11-09 07:00:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:53,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 07:00:53,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:00:54,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:00:55,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:00:56,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:00:57,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:00:57,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:00:58,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:00:58,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:00:59,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2024-11-09 07:00:59,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2024-11-09 07:00:59,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 45 [2024-11-09 07:00:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 07:00:59,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:01:02,958 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_step_#t~mem12#1_55| (_ BitVec 8)) (v_ArrVal_1101 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_13_Pointer~0.offset (_ BitVec 32)) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1102 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_1102) c_~var_1_15_Pointer~0.base v_ArrVal_1101))) (let ((.cse1 ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv47138 32) (bvmul (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))) (_ bv2 32))))))) (bvsge ((_ zero_extend 16) ((_ extract 15 0) (select (select (store .cse0 c_~var_1_1_Pointer~0.base (store (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset .cse1)) c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) .cse1)) ((_ zero_extend 24) |v_ULTIMATE.start_step_#t~mem12#1_55|))))))) is different from false [2024-11-09 07:01:03,006 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:03,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774428744] [2024-11-09 07:01:03,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774428744] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:01:03,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1016276122] [2024-11-09 07:01:03,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:03,007 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:01:03,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:01:03,008 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:01:03,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-09 07:01:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:05,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 07:01:05,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:09,187 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 07:01:09,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 07:01:09,240 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 07:01:09,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 07:01:09,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 07:01:09,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2024-11-09 07:01:10,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2024-11-09 07:01:12,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 73 [2024-11-09 07:01:12,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 73 [2024-11-09 07:01:13,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 78 [2024-11-09 07:01:13,837 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:01:13,837 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:01:13,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1016276122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:01:13,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:01:13,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [18] total 34 [2024-11-09 07:01:13,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363419126] [2024-11-09 07:01:13,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:01:13,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 07:01:13,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:01:13,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 07:01:13,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1337, Unknown=2, NotChecked=74, Total=1560 [2024-11-09 07:01:13,839 INFO L87 Difference]: Start difference. First operand 162 states and 212 transitions. Second operand has 18 states, 18 states have (on average 4.0) internal successors, (72), 17 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:01:25,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:33,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:39,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:01:39,352 INFO L93 Difference]: Finished difference Result 470 states and 609 transitions. [2024-11-09 07:01:39,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 07:01:39,353 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 17 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-09 07:01:39,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:01:39,355 INFO L225 Difference]: With dead ends: 470 [2024-11-09 07:01:39,355 INFO L226 Difference]: Without dead ends: 311 [2024-11-09 07:01:39,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=337, Invalid=2971, Unknown=2, NotChecked=112, Total=3422 [2024-11-09 07:01:39,357 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 429 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:01:39,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 1144 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2024-11-09 07:01:39,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-09 07:01:39,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 164. [2024-11-09 07:01:39,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 149 states have (on average 1.2818791946308725) internal successors, (191), 149 states have internal predecessors, (191), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:01:39,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 215 transitions. [2024-11-09 07:01:39,371 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 215 transitions. Word has length 129 [2024-11-09 07:01:39,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:01:39,372 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 215 transitions. [2024-11-09 07:01:39,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 17 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:01:39,372 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 215 transitions. [2024-11-09 07:01:39,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:01:39,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:01:39,373 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:01:39,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-09 07:01:39,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2024-11-09 07:01:39,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:01:39,774 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:01:39,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:01:39,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1635442064, now seen corresponding path program 1 times [2024-11-09 07:01:39,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:01:39,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662854943] [2024-11-09 07:01:39,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:39,775 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 [2024-11-09 07:01:39,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:01:39,776 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:01:39,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2024-11-09 07:01:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:01:40,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-09 07:01:40,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:01:42,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:01:44,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:45,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:46,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:46,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:47,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:48,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:01:48,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2024-11-09 07:01:49,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2024-11-09 07:01:50,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 63 [2024-11-09 07:01:50,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 63 [2024-11-09 07:01:51,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 72 [2024-11-09 07:01:51,864 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 07:01:51,864 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:01:52,508 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1185 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_1185))) (= ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv47138 32) (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))))))))) is different from false [2024-11-09 07:01:52,541 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1184 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1185 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store |c_#memory_int| c_~var_1_7_Pointer~0.base v_ArrVal_1184) c_~var_1_8_Pointer~0.base v_ArrVal_1185))) (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))) (_ bv47138 32)))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset)))))) is different from false [2024-11-09 07:01:57,543 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1184 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1185 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1182 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_13_Pointer~0.offset (_ BitVec 32)) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1181 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_1181) c_~var_1_15_Pointer~0.base v_ArrVal_1182))) (let ((.cse2 (store .cse0 c_~var_1_1_Pointer~0.base (store (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv47138 32) (bvmul (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))) (_ bv2 32))))))))) (or (not (bvslt (_ bv29916 32) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (let ((.cse1 (store (store .cse2 c_~var_1_7_Pointer~0.base v_ArrVal_1184) c_~var_1_8_Pointer~0.base v_ArrVal_1185))) (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv47138 32) (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse1 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))))))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset))))) (not (bvsle ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse2 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse2 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset))))) (bvshl .cse3 .cse3)))))))) is different from false [2024-11-09 07:01:57,845 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:01:57,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662854943] [2024-11-09 07:01:57,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662854943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:01:57,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [537436091] [2024-11-09 07:01:57,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:01:57,846 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:01:57,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:01:57,848 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:01:57,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-09 07:02:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:00,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-09 07:02:00,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:02:05,026 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 07:02:05,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 07:02:05,095 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 07:02:05,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 07:02:05,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 07:02:06,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 41 [2024-11-09 07:02:09,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 78 [2024-11-09 07:02:10,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 78 [2024-11-09 07:02:12,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 83 [2024-11-09 07:02:12,256 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:02:12,256 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:02:12,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [537436091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:02:12,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:02:12,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [26] total 40 [2024-11-09 07:02:12,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234435879] [2024-11-09 07:02:12,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:02:12,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 07:02:12,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:02:12,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 07:02:12,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=2301, Unknown=7, NotChecked=300, Total=2862 [2024-11-09 07:02:12,259 INFO L87 Difference]: Start difference. First operand 164 states and 215 transitions. Second operand has 18 states, 18 states have (on average 4.0) internal successors, (72), 17 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:02:23,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:29,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:40,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:43,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:45,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:02:45,399 INFO L93 Difference]: Finished difference Result 482 states and 626 transitions. [2024-11-09 07:02:45,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 07:02:45,401 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 17 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-09 07:02:45,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:02:45,402 INFO L225 Difference]: With dead ends: 482 [2024-11-09 07:02:45,402 INFO L226 Difference]: Without dead ends: 321 [2024-11-09 07:02:45,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1216 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=527, Invalid=4308, Unknown=7, NotChecked=414, Total=5256 [2024-11-09 07:02:45,404 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 320 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:02:45,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 1163 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2024-11-09 07:02:45,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-11-09 07:02:45,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 164. [2024-11-09 07:02:45,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 149 states have (on average 1.2818791946308725) internal successors, (191), 149 states have internal predecessors, (191), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:02:45,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 215 transitions. [2024-11-09 07:02:45,423 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 215 transitions. Word has length 129 [2024-11-09 07:02:45,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:02:45,424 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 215 transitions. [2024-11-09 07:02:45,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 17 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:02:45,424 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 215 transitions. [2024-11-09 07:02:45,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:02:45,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:02:45,426 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:02:45,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2024-11-09 07:02:45,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2024-11-09 07:02:45,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:02:45,827 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:02:45,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:02:45,827 INFO L85 PathProgramCache]: Analyzing trace with hash -736297198, now seen corresponding path program 1 times [2024-11-09 07:02:45,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:02:45,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278762503] [2024-11-09 07:02:45,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:45,828 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 [2024-11-09 07:02:45,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:02:45,829 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:02:45,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-09 07:02:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:46,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 07:02:46,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:02:47,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:02:49,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:02:50,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:02:51,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:02:52,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:02:53,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:02:54,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:02:55,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:02:55,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2024-11-09 07:02:56,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:02:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 252 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:02:56,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:02:56,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:02:56,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278762503] [2024-11-09 07:02:56,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278762503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:02:56,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [179037997] [2024-11-09 07:02:56,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:02:56,995 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:02:56,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:02:56,996 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:02:56,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-09 07:02:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:02:58,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 07:02:58,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:02:59,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 07:03:01,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:03:03,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:03:04,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:03:05,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:03:06,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:03:07,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:03:08,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:03:09,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2024-11-09 07:03:09,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 07:03:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:03:09,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:03:10,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [179037997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:10,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7537834] [2024-11-09 07:03:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:10,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:03:10,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:10,360 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:03:10,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 07:03:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:10,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 07:03:10,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:12,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:03:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:03:12,985 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:03:12,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7537834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:03:12,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:03:12,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18, 14] total 34 [2024-11-09 07:03:12,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107853800] [2024-11-09 07:03:12,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:03:12,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:03:12,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:03:12,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:03:12,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=1234, Unknown=72, NotChecked=0, Total=1560 [2024-11-09 07:03:12,988 INFO L87 Difference]: Start difference. First operand 164 states and 215 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:03:15,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:17,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:03:17,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:03:17,509 INFO L93 Difference]: Finished difference Result 314 states and 412 transitions. [2024-11-09 07:03:17,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:03:17,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-09 07:03:17,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:03:17,511 INFO L225 Difference]: With dead ends: 314 [2024-11-09 07:03:17,511 INFO L226 Difference]: Without dead ends: 153 [2024-11-09 07:03:17,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 413 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=265, Invalid=1301, Unknown=74, NotChecked=0, Total=1640 [2024-11-09 07:03:17,513 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 88 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:03:17,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 339 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 07:03:17,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-09 07:03:17,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-09 07:03:17,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 138 states have (on average 1.2608695652173914) internal successors, (174), 138 states have internal predecessors, (174), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:03:17,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 198 transitions. [2024-11-09 07:03:17,528 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 198 transitions. Word has length 129 [2024-11-09 07:03:17,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:03:17,529 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 198 transitions. [2024-11-09 07:03:17,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:03:17,529 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 198 transitions. [2024-11-09 07:03:17,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:03:17,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:17,531 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:03:17,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2024-11-09 07:03:17,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-09 07:03:17,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2024-11-09 07:03:18,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:03:18,132 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:03:18,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:18,132 INFO L85 PathProgramCache]: Analyzing trace with hash 637005964, now seen corresponding path program 1 times [2024-11-09 07:03:18,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:03:18,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590799268] [2024-11-09 07:03:18,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:18,133 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 [2024-11-09 07:03:18,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:03:18,134 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:03:18,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-09 07:03:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:19,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-09 07:03:19,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:21,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:03:24,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:03:26,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:03:27,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:03:28,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:03:30,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:03:31,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:03:32,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-09 07:03:32,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2024-11-09 07:03:35,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 69 [2024-11-09 07:03:35,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 69 [2024-11-09 07:03:36,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 82 [2024-11-09 07:03:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 244 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 07:03:37,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:03:38,286 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1380 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_1380))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (or (bvslt (_ bv29916 32) .cse0) (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse1 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))) .cse0))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset)))))))) is different from false [2024-11-09 07:03:38,361 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1380 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1379 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store (store |c_#memory_int| c_~var_1_7_Pointer~0.base v_ArrVal_1379) c_~var_1_8_Pointer~0.base v_ArrVal_1380))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (or (bvslt (_ bv29916 32) .cse0) (= ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (bvadd (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse1 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))) (_ bv17222 32) .cse0)))))))) is different from false [2024-11-09 07:03:46,167 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1380 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1376 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_13_Pointer~0.offset (_ BitVec 32)) (|v_ULTIMATE.start_step_#t~mem12#1_75| (_ BitVec 8)) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1379 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1377 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_1377) c_~var_1_15_Pointer~0.base v_ArrVal_1376))) (let ((.cse6 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse8 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (let ((.cse5 ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) (bvmul (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse8 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))) (_ bv2 32)) .cse6))))) (let ((.cse7 (store .cse8 c_~var_1_1_Pointer~0.base (store (select .cse8 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset .cse5)))) (let ((.cse2 ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse7 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))) (.cse0 (store (store .cse7 c_~var_1_7_Pointer~0.base v_ArrVal_1379) c_~var_1_8_Pointer~0.base v_ArrVal_1380))) (let ((.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))) (.cse4 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse7 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))) (.cse3 (bvshl .cse2 .cse2))) (or (= ((_ zero_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) (bvmul (_ bv2 32) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset))))) .cse1))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset)))) (bvsgt .cse2 .cse3) (bvslt (_ bv29916 32) .cse1) (bvsge .cse4 (bvadd ((_ zero_extend 16) ((_ extract 15 0) .cse5)) ((_ zero_extend 24) |v_ULTIMATE.start_step_#t~mem12#1_75|))) (not (bvsle .cse4 .cse3)) (bvslt (_ bv29916 32) .cse6))))))))) is different from false [2024-11-09 07:03:46,700 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:03:46,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590799268] [2024-11-09 07:03:46,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590799268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:03:46,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2091833827] [2024-11-09 07:03:46,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:46,701 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:03:46,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:03:46,704 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:03:46,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2024-11-09 07:03:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:03:49,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-09 07:03:49,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:03:53,593 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 07:03:53,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 07:03:53,658 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 07:03:53,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 07:03:53,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 07:03:54,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2024-11-09 07:04:00,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 87 [2024-11-09 07:04:01,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 87 [2024-11-09 07:04:03,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 96 [2024-11-09 07:04:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:04:03,484 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:04:03,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2091833827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:03,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:04:03,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [31] total 45 [2024-11-09 07:04:03,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090290635] [2024-11-09 07:04:03,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:03,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 07:04:03,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:04:03,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 07:04:03,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=2991, Unknown=8, NotChecked=342, Total=3660 [2024-11-09 07:04:03,486 INFO L87 Difference]: Start difference. First operand 153 states and 198 transitions. Second operand has 18 states, 18 states have (on average 4.0) internal successors, (72), 17 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:04:12,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:15,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:19,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:31,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:32,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:32,550 INFO L93 Difference]: Finished difference Result 393 states and 505 transitions. [2024-11-09 07:04:32,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 07:04:32,552 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 17 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-09 07:04:32,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:32,554 INFO L225 Difference]: With dead ends: 393 [2024-11-09 07:04:32,554 INFO L226 Difference]: Without dead ends: 243 [2024-11-09 07:04:32,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1713 ImplicationChecksByTransitivity, 26.9s TimeCoverageRelationStatistics Valid=562, Invalid=4992, Unknown=8, NotChecked=444, Total=6006 [2024-11-09 07:04:32,559 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 300 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 1773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:32,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1125 Invalid, 1773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 23.5s Time] [2024-11-09 07:04:32,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-09 07:04:32,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 153. [2024-11-09 07:04:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 138 states have (on average 1.2608695652173914) internal successors, (174), 138 states have internal predecessors, (174), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:04:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 198 transitions. [2024-11-09 07:04:32,590 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 198 transitions. Word has length 129 [2024-11-09 07:04:32,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:32,594 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 198 transitions. [2024-11-09 07:04:32,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.0) internal successors, (72), 17 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:04:32,594 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 198 transitions. [2024-11-09 07:04:32,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:04:32,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:32,595 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:32,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2024-11-09 07:04:32,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2024-11-09 07:04:32,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:04:32,998 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:04:32,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:32,999 INFO L85 PathProgramCache]: Analyzing trace with hash 855860682, now seen corresponding path program 1 times [2024-11-09 07:04:33,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:04:33,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508893789] [2024-11-09 07:04:33,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:33,000 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 [2024-11-09 07:04:33,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:04:33,001 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:04:33,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2024-11-09 07:04:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:33,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 07:04:33,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:35,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:04:38,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:04:39,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:04:41,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:04:41,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:04:42,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:04:43,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:04:44,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-09 07:04:44,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:04:44,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-09 07:04:45,070 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 244 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 07:04:45,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:04:46,125 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:04:46,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508893789] [2024-11-09 07:04:46,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1508893789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:46,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [971265796] [2024-11-09 07:04:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:46,125 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:04:46,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:04:46,127 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:04:46,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2024-11-09 07:04:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:48,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-09 07:04:48,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:53,370 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 07:04:53,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 07:04:53,443 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 07:04:53,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 07:04:54,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2024-11-09 07:04:56,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 81 [2024-11-09 07:04:57,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 81 [2024-11-09 07:04:58,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 90 [2024-11-09 07:04:59,204 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:04:59,205 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:04:59,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [971265796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:59,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:04:59,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [20] total 35 [2024-11-09 07:04:59,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089606792] [2024-11-09 07:04:59,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:59,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 07:04:59,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:04:59,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 07:04:59,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1359, Unknown=22, NotChecked=0, Total=1560 [2024-11-09 07:04:59,208 INFO L87 Difference]: Start difference. First operand 153 states and 198 transitions. Second operand has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 16 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:05:07,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:10,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:15,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:24,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:28,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:29,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:29,336 INFO L93 Difference]: Finished difference Result 430 states and 551 transitions. [2024-11-09 07:05:29,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 07:05:29,337 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 16 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-09 07:05:29,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:29,339 INFO L225 Difference]: With dead ends: 430 [2024-11-09 07:05:29,339 INFO L226 Difference]: Without dead ends: 280 [2024-11-09 07:05:29,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=355, Invalid=2929, Unknown=22, NotChecked=0, Total=3306 [2024-11-09 07:05:29,341 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 358 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:29,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1121 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1511 Invalid, 1 Unknown, 0 Unchecked, 25.1s Time] [2024-11-09 07:05:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-09 07:05:29,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 140. [2024-11-09 07:05:29,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 125 states have (on average 1.256) internal successors, (157), 125 states have internal predecessors, (157), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:05:29,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 181 transitions. [2024-11-09 07:05:29,360 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 181 transitions. Word has length 129 [2024-11-09 07:05:29,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:29,361 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 181 transitions. [2024-11-09 07:05:29,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.235294117647059) internal successors, (72), 16 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:05:29,361 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 181 transitions. [2024-11-09 07:05:29,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:05:29,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:29,362 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:29,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Ended with exit code 0 [2024-11-09 07:05:29,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:29,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 07:05:29,763 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:05:29,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:29,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1623251094, now seen corresponding path program 1 times [2024-11-09 07:05:29,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:05:29,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975131050] [2024-11-09 07:05:29,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:29,764 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 [2024-11-09 07:05:29,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:05:29,765 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:05:29,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-09 07:05:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:30,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-09 07:05:30,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:31,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:05:33,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:05:37,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:05:38,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:05:40,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:05:41,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:05:43,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:05:44,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:05:45,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31 [2024-11-09 07:05:46,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 76 [2024-11-09 07:05:47,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 96 [2024-11-09 07:05:48,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 86 [2024-11-09 07:05:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 244 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 07:05:49,236 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:05:49,726 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1535 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_1535))) (= (select (select .cse0 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset))))))) is different from false [2024-11-09 07:05:51,247 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_13_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1531 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1532 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_7_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1535 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_1532) c_~var_1_15_Pointer~0.base v_ArrVal_1531))) (let ((.cse2 ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse1 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset))))) (let ((.cse3 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))) (.cse4 (bvshl .cse2 .cse2))) (or (let ((.cse0 (store (store .cse1 c_~var_1_7_Pointer~0.base (store (select .cse1 c_~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset (bvadd .cse2 .cse3 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset)))))) c_~var_1_8_Pointer~0.base v_ArrVal_1535))) (= (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset))) ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))) (select (select .cse0 c_~var_1_7_Pointer~0.base) ~var_1_7_Pointer~0.offset))) (bvsgt .cse2 .cse4) (bvsle .cse3 .cse4)))))) is different from false [2024-11-09 07:05:51,475 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:05:51,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975131050] [2024-11-09 07:05:51,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975131050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:05:51,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [894573405] [2024-11-09 07:05:51,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:51,476 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:05:51,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:05:51,477 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:05:51,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2024-11-09 07:05:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:54,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-09 07:05:54,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:58,715 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 07:05:58,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 07:05:58,785 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 07:05:58,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 07:05:58,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 07:05:59,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 66 [2024-11-09 07:06:00,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 48 [2024-11-09 07:06:03,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 77 [2024-11-09 07:06:03,085 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:06:03,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:06:03,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [894573405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:03,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:06:03,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [26] total 34 [2024-11-09 07:06:03,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923348155] [2024-11-09 07:06:03,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:03,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:06:03,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:06:03,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:06:03,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1334, Unknown=3, NotChecked=154, Total=1722 [2024-11-09 07:06:03,087 INFO L87 Difference]: Start difference. First operand 140 states and 181 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:06:07,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:10,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:13,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:19,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:20,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:20,120 INFO L93 Difference]: Finished difference Result 339 states and 437 transitions. [2024-11-09 07:06:20,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:06:20,121 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-09 07:06:20,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:20,123 INFO L225 Difference]: With dead ends: 339 [2024-11-09 07:06:20,123 INFO L226 Difference]: Without dead ends: 202 [2024-11-09 07:06:20,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=333, Invalid=2023, Unknown=4, NotChecked=190, Total=2550 [2024-11-09 07:06:20,125 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 243 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:20,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 645 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 566 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2024-11-09 07:06:20,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-09 07:06:20,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 177. [2024-11-09 07:06:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 162 states have (on average 1.2530864197530864) internal successors, (203), 162 states have internal predecessors, (203), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:06:20,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 227 transitions. [2024-11-09 07:06:20,143 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 227 transitions. Word has length 129 [2024-11-09 07:06:20,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:20,144 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 227 transitions. [2024-11-09 07:06:20,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:06:20,144 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 227 transitions. [2024-11-09 07:06:20,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:06:20,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:20,145 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:20,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2024-11-09 07:06:20,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2024-11-09 07:06:20,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:20,546 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:20,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:20,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1685290708, now seen corresponding path program 1 times [2024-11-09 07:06:20,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:06:20,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824567690] [2024-11-09 07:06:20,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:20,548 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 [2024-11-09 07:06:20,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:06:20,551 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:06:20,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2024-11-09 07:06:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:21,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 07:06:21,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:24,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-09 07:06:24,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-09 07:06:24,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2024-11-09 07:06:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:06:24,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:06:24,460 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:06:24,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824567690] [2024-11-09 07:06:24,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824567690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:24,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:24,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:06:24,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040511935] [2024-11-09 07:06:24,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:24,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:06:24,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:06:24,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:06:24,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:06:24,463 INFO L87 Difference]: Start difference. First operand 177 states and 227 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:06:27,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:29,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:32,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:33,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:33,632 INFO L93 Difference]: Finished difference Result 413 states and 528 transitions. [2024-11-09 07:06:33,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:33,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-09 07:06:33,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:33,635 INFO L225 Difference]: With dead ends: 413 [2024-11-09 07:06:33,635 INFO L226 Difference]: Without dead ends: 239 [2024-11-09 07:06:33,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:06:33,636 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 170 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:33,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 390 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-09 07:06:33,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-09 07:06:33,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 213. [2024-11-09 07:06:33,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 198 states have (on average 1.2474747474747474) internal successors, (247), 198 states have internal predecessors, (247), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:06:33,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 271 transitions. [2024-11-09 07:06:33,657 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 271 transitions. Word has length 129 [2024-11-09 07:06:33,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:33,657 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 271 transitions. [2024-11-09 07:06:33,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 7 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:06:33,658 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 271 transitions. [2024-11-09 07:06:33,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 07:06:33,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:33,659 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:33,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2024-11-09 07:06:33,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:33,860 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:33,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:33,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1098484694, now seen corresponding path program 1 times [2024-11-09 07:06:33,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:06:33,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173214460] [2024-11-09 07:06:33,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:33,861 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 [2024-11-09 07:06:33,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:06:33,865 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:06:33,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-09 07:06:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:35,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-09 07:06:35,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:36,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:06:38,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:06:42,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:06:44,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:06:45,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:06:47,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:06:48,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:06:49,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 31 [2024-11-09 07:06:51,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31 [2024-11-09 07:06:51,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2024-11-09 07:06:52,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2024-11-09 07:06:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 244 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 07:06:54,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:55,396 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1642 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_1642))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))) (or (= (select (select .cse0 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset) (bvadd .cse1 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (not (bvsgt .cse1 (bvshl .cse1 .cse1))))))) is different from false [2024-11-09 07:07:07,789 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:07:07,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173214460] [2024-11-09 07:07:07,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173214460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:07:07,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [522633909] [2024-11-09 07:07:07,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:07,789 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:07:07,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:07:07,791 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:07:07,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2024-11-09 07:07:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:09,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 07:07:09,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:14,276 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 07:07:14,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 07:07:14,350 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 07:07:14,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 07:07:14,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2024-11-09 07:07:15,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 48 [2024-11-09 07:07:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:07:16,296 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:07:16,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [522633909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:16,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:07:16,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [26] total 30 [2024-11-09 07:07:16,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432849303] [2024-11-09 07:07:16,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:16,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:07:16,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:07:16,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:07:16,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1082, Unknown=55, NotChecked=70, Total=1406 [2024-11-09 07:07:16,298 INFO L87 Difference]: Start difference. First operand 213 states and 271 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:07:19,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:07:21,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:07:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:07:26,860 INFO L93 Difference]: Finished difference Result 482 states and 610 transitions. [2024-11-09 07:07:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:07:26,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 129 [2024-11-09 07:07:26,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:07:26,862 INFO L225 Difference]: With dead ends: 482 [2024-11-09 07:07:26,862 INFO L226 Difference]: Without dead ends: 272 [2024-11-09 07:07:26,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=260, Invalid=1404, Unknown=62, NotChecked=80, Total=1806 [2024-11-09 07:07:26,864 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 298 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:07:26,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 432 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-09 07:07:26,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-09 07:07:26,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 243. [2024-11-09 07:07:26,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.236842105263158) internal successors, (282), 228 states have internal predecessors, (282), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:07:26,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 306 transitions. [2024-11-09 07:07:26,881 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 306 transitions. Word has length 129 [2024-11-09 07:07:26,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:07:26,881 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 306 transitions. [2024-11-09 07:07:26,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 8 states have internal predecessors, (72), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:07:26,882 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 306 transitions. [2024-11-09 07:07:26,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 07:07:26,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:07:26,883 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:26,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2024-11-09 07:07:27,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2024-11-09 07:07:27,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:07:27,284 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:07:27,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:27,284 INFO L85 PathProgramCache]: Analyzing trace with hash 438153644, now seen corresponding path program 1 times [2024-11-09 07:07:27,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:07:27,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372436017] [2024-11-09 07:07:27,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:27,285 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 [2024-11-09 07:07:27,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:07:27,286 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:07:27,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2024-11-09 07:07:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:28,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 07:07:28,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:30,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 07:07:30,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:07:30,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:07:30,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-09 07:07:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:07:30,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:07:30,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:07:30,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372436017] [2024-11-09 07:07:30,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372436017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:30,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:30,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 07:07:30,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688150878] [2024-11-09 07:07:30,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:30,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:07:30,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:07:30,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:07:30,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:07:30,659 INFO L87 Difference]: Start difference. First operand 243 states and 306 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:07:34,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:37,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:07:37,958 INFO L93 Difference]: Finished difference Result 603 states and 758 transitions. [2024-11-09 07:07:37,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:07:37,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 130 [2024-11-09 07:07:37,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:07:37,961 INFO L225 Difference]: With dead ends: 603 [2024-11-09 07:07:37,961 INFO L226 Difference]: Without dead ends: 363 [2024-11-09 07:07:37,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-09 07:07:37,962 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 162 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:07:37,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 625 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-09 07:07:37,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-09 07:07:37,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 291. [2024-11-09 07:07:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 276 states have (on average 1.2572463768115942) internal successors, (347), 276 states have internal predecessors, (347), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:07:37,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 371 transitions. [2024-11-09 07:07:37,983 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 371 transitions. Word has length 130 [2024-11-09 07:07:37,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:07:37,984 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 371 transitions. [2024-11-09 07:07:37,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:07:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 371 transitions. [2024-11-09 07:07:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 07:07:37,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:07:37,986 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:38,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2024-11-09 07:07:38,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:07:38,186 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:07:38,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:38,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1933585618, now seen corresponding path program 1 times [2024-11-09 07:07:38,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:07:38,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989889195] [2024-11-09 07:07:38,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:38,187 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 [2024-11-09 07:07:38,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:07:38,188 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:07:38,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2024-11-09 07:07:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:39,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-09 07:07:39,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:41,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:07:43,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:07:44,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:07:46,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:07:47,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:07:48,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:07:49,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:07:49,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2024-11-09 07:07:50,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2024-11-09 07:07:50,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 39 [2024-11-09 07:07:51,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 39 [2024-11-09 07:07:51,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 45 [2024-11-09 07:07:51,676 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 07:07:51,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:07:52,627 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_1_Pointer~0.offset (_ BitVec 32)) (|v_ULTIMATE.start_property_#t~mem94#1_60| (_ BitVec 8)) (v_ArrVal_1755 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1756 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv17222 32) |c_ULTIMATE.start_step_#t~ite10#1| (bvneg ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem7#1|)) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))))))) c_~var_1_7_Pointer~0.base v_ArrVal_1755) c_~var_1_8_Pointer~0.base v_ArrVal_1756))) (bvsge ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvadd ((_ zero_extend 24) |v_ULTIMATE.start_property_#t~mem94#1_60|) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset)))))))) is different from false [2024-11-09 07:07:52,661 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_1_Pointer~0.offset (_ BitVec 32)) (|v_ULTIMATE.start_property_#t~mem94#1_60| (_ BitVec 8)) (v_ArrVal_1755 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1756 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv47138 32) (bvneg ((_ zero_extend 24) |c_ULTIMATE.start_step_#t~mem7#1|)) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))))))) c_~var_1_7_Pointer~0.base v_ArrVal_1755) c_~var_1_8_Pointer~0.base v_ArrVal_1756))) (bvsge ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvadd ((_ zero_extend 24) |v_ULTIMATE.start_property_#t~mem94#1_60|) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset)))))))) is different from false [2024-11-09 07:07:52,695 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_13_Pointer~0.offset (_ BitVec 32)) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (|v_ULTIMATE.start_property_#t~mem94#1_60| (_ BitVec 8)) (v_ArrVal_1755 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1756 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv47138 32) (bvmul (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select |c_#memory_int| c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))) (_ bv2 32))))))) c_~var_1_7_Pointer~0.base v_ArrVal_1755) c_~var_1_8_Pointer~0.base v_ArrVal_1756))) (bvsge ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset))) ((_ zero_extend 24) |v_ULTIMATE.start_property_#t~mem94#1_60|)))))) is different from false [2024-11-09 07:07:52,741 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_13_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1753 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1752 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_property_#t~mem94#1_60| (_ BitVec 8)) (v_ArrVal_1755 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1756 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store (let ((.cse1 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_1753) c_~var_1_15_Pointer~0.base v_ArrVal_1752))) (store .cse1 c_~var_1_1_Pointer~0.base (store (select .cse1 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ sign_extend 16) ((_ extract 15 0) (bvadd (bvmul (bvneg ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse1 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset)))) (_ bv2 32)) (_ bv47138 32))))))) c_~var_1_7_Pointer~0.base v_ArrVal_1755) c_~var_1_8_Pointer~0.base v_ArrVal_1756))) (bvsge ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvadd ((_ zero_extend 24) |v_ULTIMATE.start_property_#t~mem94#1_60|) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset)))))))) is different from false [2024-11-09 07:07:52,807 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:07:52,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989889195] [2024-11-09 07:07:52,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989889195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:07:52,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1817226875] [2024-11-09 07:07:52,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:52,807 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:07:52,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:07:52,808 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:07:52,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2024-11-09 07:07:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:55,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 07:07:55,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:59,965 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 07:07:59,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 07:08:00,055 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 07:08:00,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 07:08:00,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 07:08:00,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 29 [2024-11-09 07:08:03,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 93 [2024-11-09 07:08:03,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 93 [2024-11-09 07:08:06,888 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:08:06,888 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:08:06,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1817226875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:06,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:08:06,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [20] total 35 [2024-11-09 07:08:06,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254395279] [2024-11-09 07:08:06,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:06,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 07:08:06,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:08:06,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 07:08:06,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=1295, Unknown=43, NotChecked=308, Total=1806 [2024-11-09 07:08:06,891 INFO L87 Difference]: Start difference. First operand 291 states and 371 transitions. Second operand has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 17 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:08:18,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:08:30,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:08:32,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:32,414 INFO L93 Difference]: Finished difference Result 686 states and 868 transitions. [2024-11-09 07:08:32,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 07:08:32,416 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 17 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 130 [2024-11-09 07:08:32,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:32,418 INFO L225 Difference]: With dead ends: 686 [2024-11-09 07:08:32,418 INFO L226 Difference]: Without dead ends: 398 [2024-11-09 07:08:32,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=317, Invalid=2626, Unknown=43, NotChecked=436, Total=3422 [2024-11-09 07:08:32,419 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 249 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:32,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 897 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1197 Invalid, 2 Unknown, 0 Unchecked, 20.9s Time] [2024-11-09 07:08:32,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-09 07:08:32,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 307. [2024-11-09 07:08:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 292 states have (on average 1.2568493150684932) internal successors, (367), 292 states have internal predecessors, (367), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:08:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 391 transitions. [2024-11-09 07:08:32,440 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 391 transitions. Word has length 130 [2024-11-09 07:08:32,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:32,440 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 391 transitions. [2024-11-09 07:08:32,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 17 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:08:32,441 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 391 transitions. [2024-11-09 07:08:32,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 07:08:32,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:32,442 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:32,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2024-11-09 07:08:32,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2024-11-09 07:08:32,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:08:32,844 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:08:32,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:32,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1374037810, now seen corresponding path program 1 times [2024-11-09 07:08:32,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:08:32,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044066457] [2024-11-09 07:08:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:32,847 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 [2024-11-09 07:08:32,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:08:32,850 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:08:32,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2024-11-09 07:08:33,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:33,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 07:08:33,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:34,319 INFO L349 Elim1Store]: treesize reduction 3, result has 91.9 percent of original size [2024-11-09 07:08:34,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 84 [2024-11-09 07:08:34,486 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:08:34,487 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:08:34,487 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:08:34,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044066457] [2024-11-09 07:08:34,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044066457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:34,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:08:34,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 07:08:34,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927523901] [2024-11-09 07:08:34,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:34,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:08:34,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:08:34,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:08:34,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:08:34,489 INFO L87 Difference]: Start difference. First operand 307 states and 391 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:08:39,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:08:43,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:08:45,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:08:45,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:45,797 INFO L93 Difference]: Finished difference Result 649 states and 821 transitions. [2024-11-09 07:08:45,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 07:08:45,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 130 [2024-11-09 07:08:45,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:45,800 INFO L225 Difference]: With dead ends: 649 [2024-11-09 07:08:45,800 INFO L226 Difference]: Without dead ends: 345 [2024-11-09 07:08:45,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:08:45,801 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 33 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:45,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 691 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2024-11-09 07:08:45,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-09 07:08:45,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 273. [2024-11-09 07:08:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 258 states have (on average 1.244186046511628) internal successors, (321), 258 states have internal predecessors, (321), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 07:08:45,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 345 transitions. [2024-11-09 07:08:45,822 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 345 transitions. Word has length 130 [2024-11-09 07:08:45,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:45,825 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 345 transitions. [2024-11-09 07:08:45,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:08:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 345 transitions. [2024-11-09 07:08:45,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 07:08:45,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:45,827 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:45,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2024-11-09 07:08:46,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:08:46,027 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:08:46,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:46,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1504447173, now seen corresponding path program 1 times [2024-11-09 07:08:46,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:08:46,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745836465] [2024-11-09 07:08:46,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:46,028 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 [2024-11-09 07:08:46,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:08:46,029 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -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) [2024-11-09 07:08:46,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2024-11-09 07:08:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:47,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-09 07:08:47,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:49,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:08:52,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:08:53,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:08:54,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:08:56,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:08:57,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:08:58,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:08:58,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2024-11-09 07:09:00,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2024-11-09 07:09:00,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2024-11-09 07:09:01,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 35 [2024-11-09 07:09:01,374 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 6 proven. 244 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 07:09:01,374 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:09:01,889 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1863 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_1863))) (bvsle ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))) (bvshl .cse1 .cse1))))) is different from false [2024-11-09 07:09:01,920 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1863 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1862 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store |c_#memory_int| c_~var_1_7_Pointer~0.base v_ArrVal_1862) c_~var_1_8_Pointer~0.base v_ArrVal_1863))) (bvsle ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) c_~var_1_13_Pointer~0.offset))))) (bvshl .cse1 .cse1))))) is different from false [2024-11-09 07:09:03,204 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1860 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_13_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1863 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1861 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1862 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_1861) c_~var_1_15_Pointer~0.base v_ArrVal_1860))) (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse2 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset))))) (let ((.cse4 (bvshl .cse3 .cse3))) (or (let ((.cse0 (store (store .cse2 c_~var_1_7_Pointer~0.base v_ArrVal_1862) c_~var_1_8_Pointer~0.base v_ArrVal_1863))) (bvsle ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (select (select .cse0 c_~var_1_13_Pointer~0.base) ~var_1_13_Pointer~0.offset))))) (bvshl .cse1 .cse1)))) (bvsgt .cse3 .cse4) (not (bvsle ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse2 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) .cse4))))))) is different from false [2024-11-09 07:09:03,349 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:09:03,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745836465] [2024-11-09 07:09:03,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1745836465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:09:03,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1101311147] [2024-11-09 07:09:03,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:03,350 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:09:03,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:09:03,351 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:09:03,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026af440-8e32-49dd-a96d-6789ad5c8796/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2024-11-09 07:09:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:06,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 07:09:06,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:09:10,366 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-09 07:09:10,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 33 [2024-11-09 07:09:10,430 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-09 07:09:10,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 35 [2024-11-09 07:09:10,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 07:09:11,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 53 [2024-11-09 07:09:12,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 53 [2024-11-09 07:09:13,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 42 [2024-11-09 07:09:13,387 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 07:09:13,387 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:09:13,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1101311147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:13,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:09:13,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [25] total 34 [2024-11-09 07:09:13,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247865915] [2024-11-09 07:09:13,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:13,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 07:09:13,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:09:13,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 07:09:13,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1451, Unknown=5, NotChecked=240, Total=1892 [2024-11-09 07:09:13,389 INFO L87 Difference]: Start difference. First operand 273 states and 345 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 07:09:17,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:09:20,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]