./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.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_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 e6cf723dedb21ead1464ef57728681bb47076b157f75d61c820bb94e52d9bb55 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:27:18,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:27:18,671 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:27:18,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:27:18,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:27:18,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:27:18,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:27:18,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:27:18,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:27:18,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:27:18,727 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:27:18,728 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:27:18,728 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:27:18,729 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:27:18,730 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:27:18,730 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:27:18,730 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:27:18,731 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:27:18,731 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:27:18,732 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:27:18,732 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:27:18,733 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:27:18,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:27:18,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:27:18,734 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:27:18,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:27:18,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:27:18,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:27:18,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:27:18,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:27:18,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:27:18,741 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:27:18,741 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:27:18,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:27:18,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:27:18,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:27:18,756 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:27:18,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:27:18,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:27:18,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:27:18,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:27:18,759 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:27:18,759 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:27:18,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:27:18,760 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:27:18,760 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:27:18,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:27:18,761 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_d3d376a0-9fa2-435e-9948-85368ceb5c15/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6cf723dedb21ead1464ef57728681bb47076b157f75d61c820bb94e52d9bb55 [2024-11-09 06:27:19,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:27:19,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:27:19,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:27:19,216 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:27:19,217 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:27:19,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.i Unable to find full path for "g++" [2024-11-09 06:27:21,605 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:27:21,816 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:27:21,817 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.i [2024-11-09 06:27:21,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/data/47ff6f4a4/06aa7aebc97a445794763d443e03d7f5/FLAGcbf2d0e7a [2024-11-09 06:27:21,842 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/data/47ff6f4a4/06aa7aebc97a445794763d443e03d7f5 [2024-11-09 06:27:21,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:27:21,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:27:21,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:27:21,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:27:21,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:27:21,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:27:21" (1/1) ... [2024-11-09 06:27:21,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d5b9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:21, skipping insertion in model container [2024-11-09 06:27:21,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:27:21" (1/1) ... [2024-11-09 06:27:21,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:27:22,142 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_d3d376a0-9fa2-435e-9948-85368ceb5c15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.i[916,929] [2024-11-09 06:27:22,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:27:22,257 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:27:22,270 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_d3d376a0-9fa2-435e-9948-85368ceb5c15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.i[916,929] [2024-11-09 06:27:22,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:27:22,363 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:27:22,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22 WrapperNode [2024-11-09 06:27:22,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:27:22,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:27:22,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:27:22,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:27:22,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,424 INFO L138 Inliner]: procedures = 29, calls = 139, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 456 [2024-11-09 06:27:22,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:27:22,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:27:22,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:27:22,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:27:22,437 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:27:22,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:27:22,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:27:22,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:27:22,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (1/1) ... [2024-11-09 06:27:22,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:27:22,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:27:22,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:27:22,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:27:22,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:27:22,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 06:27:22,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:27:22,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 06:27:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:27:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-09 06:27:22,598 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:27:22,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:27:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:27:22,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:27:22,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:27:22,773 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:27:22,776 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:27:23,376 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2024-11-09 06:27:23,376 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:27:24,043 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:27:24,044 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:27:24,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:27:24 BoogieIcfgContainer [2024-11-09 06:27:24,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:27:24,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:27:24,050 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:27:24,054 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:27:24,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:27:21" (1/3) ... [2024-11-09 06:27:24,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cdfad65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:27:24, skipping insertion in model container [2024-11-09 06:27:24,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:22" (2/3) ... [2024-11-09 06:27:24,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cdfad65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:27:24, skipping insertion in model container [2024-11-09 06:27:24,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:27:24" (3/3) ... [2024-11-09 06:27:24,059 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-47.i [2024-11-09 06:27:24,078 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:27:24,079 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:27:24,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:27:24,166 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;@4126256a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:27:24,166 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:27:24,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:27:24,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 06:27:24,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:24,181 INFO L215 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 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 06:27:24,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:27:24,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:24,187 INFO L85 PathProgramCache]: Analyzing trace with hash -658137945, now seen corresponding path program 1 times [2024-11-09 06:27:24,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:27:24,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844681854] [2024-11-09 06:27:24,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:24,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:27:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:27:24,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:27:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:27:25,464 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:27:25,466 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:27:25,468 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:27:25,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:27:25,474 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:27:25,534 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:27:25,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:27:25 BoogieIcfgContainer [2024-11-09 06:27:25,540 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:27:25,540 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:27:25,540 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:27:25,541 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:27:25,541 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:27:24" (3/4) ... [2024-11-09 06:27:25,544 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:27:25,545 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:27:25,546 INFO L158 Benchmark]: Toolchain (without parser) took 3699.06ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 97.8MB in the beginning and 89.4MB in the end (delta: 8.3MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2024-11-09 06:27:25,547 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 134.2MB. Free memory was 105.7MB in the beginning and 105.5MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:27:25,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.73ms. Allocated memory is still 134.2MB. Free memory was 97.8MB in the beginning and 82.3MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:27:25,549 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.35ms. Allocated memory is still 134.2MB. Free memory was 82.3MB in the beginning and 78.5MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:27:25,550 INFO L158 Benchmark]: Boogie Preprocessor took 85.17ms. Allocated memory is still 134.2MB. Free memory was 78.5MB in the beginning and 75.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:27:25,551 INFO L158 Benchmark]: RCFGBuilder took 1533.42ms. Allocated memory is still 134.2MB. Free memory was 75.2MB in the beginning and 74.5MB in the end (delta: 638.1kB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2024-11-09 06:27:25,552 INFO L158 Benchmark]: TraceAbstraction took 1489.81ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 73.7MB in the beginning and 90.5MB in the end (delta: -16.8MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2024-11-09 06:27:25,553 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 184.5MB. Free memory was 90.5MB in the beginning and 89.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:27:25,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 134.2MB. Free memory was 105.7MB in the beginning and 105.5MB in the end (delta: 176.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 515.73ms. Allocated memory is still 134.2MB. Free memory was 97.8MB in the beginning and 82.3MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.35ms. Allocated memory is still 134.2MB. Free memory was 82.3MB in the beginning and 78.5MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.17ms. Allocated memory is still 134.2MB. Free memory was 78.5MB in the beginning and 75.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1533.42ms. Allocated memory is still 134.2MB. Free memory was 75.2MB in the beginning and 74.5MB in the end (delta: 638.1kB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1489.81ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 73.7MB in the beginning and 90.5MB in the end (delta: -16.8MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 184.5MB. Free memory was 90.5MB in the beginning and 89.4MB in the end (delta: 1.0MB). 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 54, overapproximation of someUnaryDOUBLEoperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 1, 1 }; [L25-L27] double double_Array_0[3] = { 3.5, 3.8, 24.575 }; [L28-L30] signed char signed_char_Array_0[3] = { 16, 16, 4 }; [L31-L33] signed long int signed_long_int_Array_0[1] = { 8 }; [L34] signed long int last_1_signed_long_int_Array_0_0_ = 8; [L88] isInitial = 1 [L89] FCALL initially() [L90] COND TRUE 1 [L91] CALL updateLastVariables() [L81] EXPR signed_long_int_Array_0[0] [L81] last_1_signed_long_int_Array_0_0_ = signed_long_int_Array_0[0] [L91] RET updateLastVariables() [L92] CALL updateVariables() [L65] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L66] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L66] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L67] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L67] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L68] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L69] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L69] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L70] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L71] double_Array_0[0] = __VERIFIER_nondet_double() [L72] EXPR double_Array_0[0] [L72] EXPR double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F [L72] EXPR double_Array_0[0] [L72] EXPR double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F [L72] EXPR (double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L72] CALL assume_abort_if_not((double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((double_Array_0[0] >= -922337.2036854765600e+13F && double_Array_0[0] <= -1.0e-20F) || (double_Array_0[0] <= 9223372.036854765600e+12F && double_Array_0[0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L73] signed_char_Array_0[1] = __VERIFIER_nondet_char() [L74] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L74] CALL assume_abort_if_not(signed_char_Array_0[1] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(signed_char_Array_0[1] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L75] EXPR signed_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L75] CALL assume_abort_if_not(signed_char_Array_0[1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(signed_char_Array_0[1] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L76] signed_char_Array_0[2] = __VERIFIER_nondet_char() [L77] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L77] CALL assume_abort_if_not(signed_char_Array_0[2] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(signed_char_Array_0[2] >= -63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L78] EXPR signed_char_Array_0[2] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L78] CALL assume_abort_if_not(signed_char_Array_0[2] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(signed_char_Array_0[2] <= 63) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L92] RET updateVariables() [L93] CALL step() [L38] COND FALSE !(-4 > last_1_signed_long_int_Array_0_0_) [L43] EXPR signed_char_Array_0[1] [L43] signed_char_Array_0[0] = signed_char_Array_0[1] [L45] EXPR BOOL_unsigned_char_Array_0[0] [L45] unsigned char stepLocal_0 = ! BOOL_unsigned_char_Array_0[0]; [L46] stepLocal_0 || BOOL_unsigned_char_Array_0[1] [L46] EXPR BOOL_unsigned_char_Array_0[1] [L46] stepLocal_0 || BOOL_unsigned_char_Array_0[1] [L46] COND FALSE !(stepLocal_0 || BOOL_unsigned_char_Array_0[1]) [L53] EXPR double_Array_0[0] [L53] double_Array_0[1] = double_Array_0[0] [L54] EXPR double_Array_0[1] [L54] EXPR double_Array_0[1] [L54] COND TRUE double_Array_0[1] <= double_Array_0[1] [L55] EXPR signed_long_int_Array_0[0] [L55] EXPR signed_long_int_Array_0[0] [L55] EXPR signed_long_int_Array_0[0] [L55] EXPR signed_char_Array_0[0] [L55] COND TRUE (signed_long_int_Array_0[0] + signed_long_int_Array_0[0]) >= (signed_long_int_Array_0[0] + signed_char_Array_0[0]) [L56] EXPR double_Array_0[0] [L56] EXPR ((double_Array_0[0]) < 0 ) ? -(double_Array_0[0]) : (double_Array_0[0]) [L56] EXPR double_Array_0[0] [L56] EXPR ((double_Array_0[0]) < 0 ) ? -(double_Array_0[0]) : (double_Array_0[0]) [L56] double_Array_0[2] = ((((double_Array_0[0]) < 0 ) ? -(double_Array_0[0]) : (double_Array_0[0]))) [L93] RET step() [L94] CALL, EXPR property() [L84] EXPR double_Array_0[1] [L84] EXPR double_Array_0[1] [L84] EXPR (double_Array_0[1] <= double_Array_0[1]) ? (((signed_long_int_Array_0[0] + signed_long_int_Array_0[0]) >= (signed_long_int_Array_0[0] + signed_char_Array_0[0])) ? (double_Array_0[2] == ((double) ((((double_Array_0[0]) < 0 ) ? -(double_Array_0[0]) : (double_Array_0[0]))))) : 1) : ((signed_long_int_Array_0[0] > signed_char_Array_0[0]) ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1) [L84] EXPR signed_long_int_Array_0[0] [L84] EXPR signed_char_Array_0[0] [L84] EXPR (signed_long_int_Array_0[0] > signed_char_Array_0[0]) ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1 [L84] EXPR double_Array_0[2] [L84] EXPR double_Array_0[0] [L84] EXPR (signed_long_int_Array_0[0] > signed_char_Array_0[0]) ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1 [L84] EXPR (double_Array_0[1] <= double_Array_0[1]) ? (((signed_long_int_Array_0[0] + signed_long_int_Array_0[0]) >= (signed_long_int_Array_0[0] + signed_char_Array_0[0])) ? (double_Array_0[2] == ((double) ((((double_Array_0[0]) < 0 ) ? -(double_Array_0[0]) : (double_Array_0[0]))))) : 1) : ((signed_long_int_Array_0[0] > signed_char_Array_0[0]) ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1) [L84] EXPR ((double_Array_0[1] <= double_Array_0[1]) ? (((signed_long_int_Array_0[0] + signed_long_int_Array_0[0]) >= (signed_long_int_Array_0[0] + signed_char_Array_0[0])) ? (double_Array_0[2] == ((double) ((((double_Array_0[0]) < 0 ) ? -(double_Array_0[0]) : (double_Array_0[0]))))) : 1) : ((signed_long_int_Array_0[0] > signed_char_Array_0[0]) ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) && ((-4 > last_1_signed_long_int_Array_0_0_) ? (((~ last_1_signed_long_int_Array_0_0_) <= last_1_signed_long_int_Array_0_0_) ? (signed_char_Array_0[0] == ((signed char) ((((signed_char_Array_0[1] + signed_char_Array_0[2]) < 0 ) ? -(signed_char_Array_0[1] + signed_char_Array_0[2]) : (signed_char_Array_0[1] + signed_char_Array_0[2]))))) : 1) : (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1]))) [L84] EXPR (((double_Array_0[1] <= double_Array_0[1]) ? (((signed_long_int_Array_0[0] + signed_long_int_Array_0[0]) >= (signed_long_int_Array_0[0] + signed_char_Array_0[0])) ? (double_Array_0[2] == ((double) ((((double_Array_0[0]) < 0 ) ? -(double_Array_0[0]) : (double_Array_0[0]))))) : 1) : ((signed_long_int_Array_0[0] > signed_char_Array_0[0]) ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) && ((-4 > last_1_signed_long_int_Array_0_0_) ? (((~ last_1_signed_long_int_Array_0_0_) <= last_1_signed_long_int_Array_0_0_) ? (signed_char_Array_0[0] == ((signed char) ((((signed_char_Array_0[1] + signed_char_Array_0[2]) < 0 ) ? -(signed_char_Array_0[1] + signed_char_Array_0[2]) : (signed_char_Array_0[1] + signed_char_Array_0[2]))))) : 1) : (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])))) && (((! BOOL_unsigned_char_Array_0[0]) || BOOL_unsigned_char_Array_0[1]) ? ((! BOOL_unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((((signed_char_Array_0[0]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[0]) : (signed_char_Array_0[0]))) < 0 ) ? -((((signed_char_Array_0[0]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[0]) : (signed_char_Array_0[0]))) : ((((signed_char_Array_0[0]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[0]) : (signed_char_Array_0[0]))))))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0]))) : 1) [L84] EXPR ((((double_Array_0[1] <= double_Array_0[1]) ? (((signed_long_int_Array_0[0] + signed_long_int_Array_0[0]) >= (signed_long_int_Array_0[0] + signed_char_Array_0[0])) ? (double_Array_0[2] == ((double) ((((double_Array_0[0]) < 0 ) ? -(double_Array_0[0]) : (double_Array_0[0]))))) : 1) : ((signed_long_int_Array_0[0] > signed_char_Array_0[0]) ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) && ((-4 > last_1_signed_long_int_Array_0_0_) ? (((~ last_1_signed_long_int_Array_0_0_) <= last_1_signed_long_int_Array_0_0_) ? (signed_char_Array_0[0] == ((signed char) ((((signed_char_Array_0[1] + signed_char_Array_0[2]) < 0 ) ? -(signed_char_Array_0[1] + signed_char_Array_0[2]) : (signed_char_Array_0[1] + signed_char_Array_0[2]))))) : 1) : (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])))) && (((! BOOL_unsigned_char_Array_0[0]) || BOOL_unsigned_char_Array_0[1]) ? ((! BOOL_unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((((signed_char_Array_0[0]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[0]) : (signed_char_Array_0[0]))) < 0 ) ? -((((signed_char_Array_0[0]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[0]) : (signed_char_Array_0[0]))) : ((((signed_char_Array_0[0]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[0]) : (signed_char_Array_0[0]))))))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0]))) : 1)) && (double_Array_0[1] == ((double) double_Array_0[0])) [L84-L85] return ((((double_Array_0[1] <= double_Array_0[1]) ? (((signed_long_int_Array_0[0] + signed_long_int_Array_0[0]) >= (signed_long_int_Array_0[0] + signed_char_Array_0[0])) ? (double_Array_0[2] == ((double) ((((double_Array_0[0]) < 0 ) ? -(double_Array_0[0]) : (double_Array_0[0]))))) : 1) : ((signed_long_int_Array_0[0] > signed_char_Array_0[0]) ? (double_Array_0[2] == ((double) double_Array_0[0])) : 1)) && ((-4 > last_1_signed_long_int_Array_0_0_) ? (((~ last_1_signed_long_int_Array_0_0_) <= last_1_signed_long_int_Array_0_0_) ? (signed_char_Array_0[0] == ((signed char) ((((signed_char_Array_0[1] + signed_char_Array_0[2]) < 0 ) ? -(signed_char_Array_0[1] + signed_char_Array_0[2]) : (signed_char_Array_0[1] + signed_char_Array_0[2]))))) : 1) : (signed_char_Array_0[0] == ((signed char) signed_char_Array_0[1])))) && (((! BOOL_unsigned_char_Array_0[0]) || BOOL_unsigned_char_Array_0[1]) ? ((! BOOL_unsigned_char_Array_0[1]) ? (signed_long_int_Array_0[0] == ((signed long int) (((((((signed_char_Array_0[0]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[0]) : (signed_char_Array_0[0]))) < 0 ) ? -((((signed_char_Array_0[0]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[0]) : (signed_char_Array_0[0]))) : ((((signed_char_Array_0[0]) < (signed_char_Array_0[0])) ? (signed_char_Array_0[0]) : (signed_char_Array_0[0]))))))) : (signed_long_int_Array_0[0] == ((signed long int) signed_char_Array_0[0]))) : 1)) && (double_Array_0[1] == ((double) double_Array_0[0])) ; [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_signed_long_int_Array_0_0_=8, signed_char_Array_0={6:0}, signed_long_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 9, 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=27occurred 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, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 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 06:27:25,605 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 e6cf723dedb21ead1464ef57728681bb47076b157f75d61c820bb94e52d9bb55 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:27:28,222 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:27:28,347 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:27:28,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:27:28,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:27:28,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:27:28,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:27:28,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:27:28,405 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:27:28,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:27:28,407 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:27:28,407 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:27:28,408 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:27:28,409 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:27:28,410 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:27:28,410 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:27:28,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:27:28,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:27:28,412 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:27:28,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:27:28,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:27:28,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:27:28,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:27:28,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:27:28,414 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:27:28,415 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:27:28,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:27:28,415 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:27:28,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:27:28,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:27:28,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:27:28,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:27:28,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:27:28,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:27:28,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:27:28,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:27:28,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:27:28,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:27:28,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:27:28,420 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:27:28,420 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:27:28,421 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:27:28,421 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:27:28,421 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_d3d376a0-9fa2-435e-9948-85368ceb5c15/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6cf723dedb21ead1464ef57728681bb47076b157f75d61c820bb94e52d9bb55 [2024-11-09 06:27:28,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:27:28,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:27:28,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:27:28,907 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:27:28,908 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:27:28,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.i Unable to find full path for "g++" [2024-11-09 06:27:30,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:27:31,305 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:27:31,306 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.i [2024-11-09 06:27:31,319 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/data/f9d144d29/bdd191c523a2468790fe9420ac4ccb5b/FLAGaaae70e40 [2024-11-09 06:27:31,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/data/f9d144d29/bdd191c523a2468790fe9420ac4ccb5b [2024-11-09 06:27:31,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:27:31,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:27:31,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:27:31,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:27:31,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:27:31,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:31,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77763384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31, skipping insertion in model container [2024-11-09 06:27:31,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:31,392 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:27:31,676 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_d3d376a0-9fa2-435e-9948-85368ceb5c15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.i[916,929] [2024-11-09 06:27:31,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:27:31,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:27:31,849 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_d3d376a0-9fa2-435e-9948-85368ceb5c15/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-47.i[916,929] [2024-11-09 06:27:31,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:27:31,954 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:27:31,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31 WrapperNode [2024-11-09 06:27:31,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:27:31,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:27:31,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:27:31,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:27:31,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:31,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:32,063 INFO L138 Inliner]: procedures = 33, calls = 139, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 454 [2024-11-09 06:27:32,064 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:27:32,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:27:32,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:27:32,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:27:32,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:32,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:32,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:32,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:32,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:32,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:32,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:32,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:32,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:27:32,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:27:32,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:27:32,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:27:32,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (1/1) ... [2024-11-09 06:27:32,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:27:32,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:27:32,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:27:32,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:27:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:27:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-09 06:27:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-09 06:27:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 06:27:32,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:27:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 06:27:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2024-11-09 06:27:32,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:27:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:27:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:27:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:27:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:27:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 06:27:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:27:32,446 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:27:32,449 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:27:33,329 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-09 06:27:33,329 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:27:33,352 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:27:33,352 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:27:33,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:27:33 BoogieIcfgContainer [2024-11-09 06:27:33,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:27:33,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:27:33,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:27:33,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:27:33,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:27:31" (1/3) ... [2024-11-09 06:27:33,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2cba78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:27:33, skipping insertion in model container [2024-11-09 06:27:33,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:27:31" (2/3) ... [2024-11-09 06:27:33,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2cba78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:27:33, skipping insertion in model container [2024-11-09 06:27:33,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:27:33" (3/3) ... [2024-11-09 06:27:33,378 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-47.i [2024-11-09 06:27:33,395 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:27:33,395 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:27:33,479 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:27:33,489 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;@3113f4ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:27:33,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:27:33,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:27:33,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:27:33,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:33,515 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:33,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:27:33,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:33,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1021203961, now seen corresponding path program 1 times [2024-11-09 06:27:33,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:33,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332867006] [2024-11-09 06:27:33,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:33,544 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 06:27:33,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:33,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:33,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:33,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:27:33,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:34,037 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:27:34,037 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:34,038 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:34,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332867006] [2024-11-09 06:27:34,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332867006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:34,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:34,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:27:34,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246634302] [2024-11-09 06:27:34,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:34,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:27:34,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:34,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:27:34,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:27:34,112 INFO L87 Difference]: Start difference. First operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:27:34,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:34,213 INFO L93 Difference]: Finished difference Result 186 states and 287 transitions. [2024-11-09 06:27:34,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:27:34,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-09 06:27:34,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:34,229 INFO L225 Difference]: With dead ends: 186 [2024-11-09 06:27:34,229 INFO L226 Difference]: Without dead ends: 93 [2024-11-09 06:27:34,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 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 06:27:34,236 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:34,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:27:34,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-09 06:27:34,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-09 06:27:34,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.4268292682926829) internal successors, (117), 82 states have internal predecessors, (117), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:27:34,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-11-09 06:27:34,289 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 84 [2024-11-09 06:27:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:34,291 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-11-09 06:27:34,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:27:34,292 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-11-09 06:27:34,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:27:34,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:34,295 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:34,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:34,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:34,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:27:34,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:34,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1584819593, now seen corresponding path program 1 times [2024-11-09 06:27:34,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:34,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592537081] [2024-11-09 06:27:34,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:34,500 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 06:27:34,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:34,504 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:34,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:34,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:27:34,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:27:34,938 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:34,939 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:34,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592537081] [2024-11-09 06:27:34,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592537081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:34,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:34,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:34,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305251665] [2024-11-09 06:27:34,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:34,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:27:34,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:34,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:27:34,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:34,948 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:27:35,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:35,059 INFO L93 Difference]: Finished difference Result 186 states and 271 transitions. [2024-11-09 06:27:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:27:35,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-09 06:27:35,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:35,063 INFO L225 Difference]: With dead ends: 186 [2024-11-09 06:27:35,065 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 06:27:35,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 06:27:35,068 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:35,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:27:35,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 06:27:35,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-09 06:27:35,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.411764705882353) internal successors, (120), 85 states have internal predecessors, (120), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:27:35,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-11-09 06:27:35,090 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 84 [2024-11-09 06:27:35,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:35,091 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-11-09 06:27:35,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:27:35,092 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-11-09 06:27:35,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:27:35,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:35,095 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:35,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:35,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:35,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:27:35,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:35,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1198742533, now seen corresponding path program 1 times [2024-11-09 06:27:35,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:35,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701744027] [2024-11-09 06:27:35,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:35,304 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 06:27:35,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:35,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:35,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:35,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:27:35,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:35,736 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:27:35,739 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:27:35,739 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:35,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701744027] [2024-11-09 06:27:35,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [701744027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:35,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:35,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:27:35,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056793814] [2024-11-09 06:27:35,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:35,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:27:35,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:27:35,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:27:35,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:27:35,748 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:27:35,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:27:35,922 INFO L93 Difference]: Finished difference Result 194 states and 280 transitions. [2024-11-09 06:27:35,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:27:35,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-09 06:27:35,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:27:35,925 INFO L225 Difference]: With dead ends: 194 [2024-11-09 06:27:35,925 INFO L226 Difference]: Without dead ends: 101 [2024-11-09 06:27:35,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 06:27:35,927 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 1 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:27:35,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 503 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:27:35,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-09 06:27:35,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-11-09 06:27:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 89 states have internal predecessors, (124), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 06:27:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2024-11-09 06:27:35,938 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 84 [2024-11-09 06:27:35,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:27:35,939 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2024-11-09 06:27:35,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:27:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2024-11-09 06:27:35,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:27:35,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:27:35,942 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:35,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:27:36,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:36,143 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:27:36,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:27:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1196895491, now seen corresponding path program 1 times [2024-11-09 06:27:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:27:36,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592995467] [2024-11-09 06:27:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:36,145 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 06:27:36,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:27:36,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:36,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:27:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:36,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:27:36,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:37,089 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 06:27:37,742 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 109 treesize of output 82 [2024-11-09 06:27:38,090 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 109 treesize of output 82 [2024-11-09 06:27:38,515 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 109 treesize of output 82 [2024-11-09 06:27:38,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:27:38,860 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 152 treesize of output 62 [2024-11-09 06:27:39,011 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:27:39,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:27:39,332 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_80 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_28| (_ BitVec 64))) (or (not (= (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_80) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_28|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_28|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_28|)))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_28|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_28|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2024-11-09 06:27:39,395 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:27:39,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592995467] [2024-11-09 06:27:39,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592995467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:27:39,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2080779995] [2024-11-09 06:27:39,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:39,396 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:27:39,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:27:39,400 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:27:39,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-09 06:27:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:40,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:27:40,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:27:41,174 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 21 treesize of output 10 [2024-11-09 06:27:50,168 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 119 treesize of output 90 [2024-11-09 06:27:50,632 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 119 treesize of output 90 [2024-11-09 06:27:51,172 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 119 treesize of output 90 [2024-11-09 06:27:55,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:27:55,425 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 162 treesize of output 66 [2024-11-09 06:27:59,597 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:27:59,597 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:27:59,735 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_28| (_ BitVec 64)) (v_ArrVal_106 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_106) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_28|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_28|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_28|)))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_28|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_28|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2024-11-09 06:27:59,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2080779995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:27:59,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731544502] [2024-11-09 06:27:59,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:27:59,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:27:59,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:27:59,795 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:27:59,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:28:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:00,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:28:00,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:28:00,978 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 26 treesize of output 1 [2024-11-09 06:28:01,934 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 59 treesize of output 44 [2024-11-09 06:28:02,175 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 59 treesize of output 44 [2024-11-09 06:28:02,474 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 59 treesize of output 44 [2024-11-09 06:28:02,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:28:02,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 127 treesize of output 68 [2024-11-09 06:28:03,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:28:03,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 183 treesize of output 112 [2024-11-09 06:28:04,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:28:04,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 479 treesize of output 167 [2024-11-09 06:28:04,617 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 65 proven. 24 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 06:28:04,617 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:28:07,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731544502] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:28:07,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:28:07,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 15] total 28 [2024-11-09 06:28:07,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438556325] [2024-11-09 06:28:07,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:28:07,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 06:28:07,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:28:07,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 06:28:07,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1210, Unknown=29, NotChecked=146, Total=1560 [2024-11-09 06:28:07,946 INFO L87 Difference]: Start difference. First operand 100 states and 142 transitions. Second operand has 29 states, 29 states have (on average 3.586206896551724) internal successors, (104), 28 states have internal predecessors, (104), 5 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-09 06:28:20,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:28:20,095 INFO L93 Difference]: Finished difference Result 292 states and 413 transitions. [2024-11-09 06:28:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 06:28:20,097 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.586206896551724) internal successors, (104), 28 states have internal predecessors, (104), 5 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 84 [2024-11-09 06:28:20,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:28:20,100 INFO L225 Difference]: With dead ends: 292 [2024-11-09 06:28:20,100 INFO L226 Difference]: Without dead ends: 195 [2024-11-09 06:28:20,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 281 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=409, Invalid=2646, Unknown=33, NotChecked=218, Total=3306 [2024-11-09 06:28:20,106 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 353 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:28:20,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 947 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-11-09 06:28:20,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-09 06:28:20,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 127. [2024-11-09 06:28:20,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 110 states have (on average 1.3727272727272728) internal successors, (151), 110 states have internal predecessors, (151), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 06:28:20,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 179 transitions. [2024-11-09 06:28:20,128 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 179 transitions. Word has length 84 [2024-11-09 06:28:20,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:28:20,129 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 179 transitions. [2024-11-09 06:28:20,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.586206896551724) internal successors, (104), 28 states have internal predecessors, (104), 5 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-09 06:28:20,130 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 179 transitions. [2024-11-09 06:28:20,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:28:20,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:28:20,133 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:20,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-09 06:28:20,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Ended with exit code 0 [2024-11-09 06:28:20,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:28:20,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:28:20,735 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:28:20,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:28:20,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1710773606, now seen corresponding path program 1 times [2024-11-09 06:28:20,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:28:20,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694342433] [2024-11-09 06:28:20,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:20,737 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 06:28:20,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:28:20,738 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:20,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:21,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:28:21,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:28:21,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:28:21,164 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 154 treesize of output 46 [2024-11-09 06:28:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:28:21,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:28:21,292 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:28:21,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694342433] [2024-11-09 06:28:21,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694342433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:28:21,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:28:21,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:28:21,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166154913] [2024-11-09 06:28:21,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:28:21,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:28:21,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:28:21,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:28:21,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:28:21,295 INFO L87 Difference]: Start difference. First operand 127 states and 179 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:28:25,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:28:25,418 INFO L93 Difference]: Finished difference Result 296 states and 416 transitions. [2024-11-09 06:28:25,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:28:25,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-09 06:28:25,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:28:25,422 INFO L225 Difference]: With dead ends: 296 [2024-11-09 06:28:25,422 INFO L226 Difference]: Without dead ends: 172 [2024-11-09 06:28:25,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:28:25,424 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 57 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:28:25,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 366 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 06:28:25,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-09 06:28:25,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 129. [2024-11-09 06:28:25,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 112 states have (on average 1.3660714285714286) internal successors, (153), 112 states have internal predecessors, (153), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 06:28:25,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 181 transitions. [2024-11-09 06:28:25,444 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 181 transitions. Word has length 84 [2024-11-09 06:28:25,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:28:25,445 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 181 transitions. [2024-11-09 06:28:25,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:28:25,449 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 181 transitions. [2024-11-09 06:28:25,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:28:25,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:28:25,451 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:25,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:25,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:25,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:28:25,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:28:25,653 INFO L85 PathProgramCache]: Analyzing trace with hash 189889919, now seen corresponding path program 1 times [2024-11-09 06:28:25,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:28:25,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744994823] [2024-11-09 06:28:25,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:25,654 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 06:28:25,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:28:25,658 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:25,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:25,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:28:25,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:28:25,879 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:28:25,880 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:28:25,880 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:28:25,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744994823] [2024-11-09 06:28:25,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744994823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:28:25,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:28:25,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:28:25,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167150626] [2024-11-09 06:28:25,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:28:25,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:28:25,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:28:25,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:28:25,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:28:25,882 INFO L87 Difference]: Start difference. First operand 129 states and 181 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:28:25,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:28:25,956 INFO L93 Difference]: Finished difference Result 255 states and 359 transitions. [2024-11-09 06:28:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:28:25,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2024-11-09 06:28:25,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:28:25,957 INFO L225 Difference]: With dead ends: 255 [2024-11-09 06:28:25,958 INFO L226 Difference]: Without dead ends: 129 [2024-11-09 06:28:25,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 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 06:28:25,959 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:28:25,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 388 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:28:25,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-09 06:28:25,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-09 06:28:25,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 112 states have (on average 1.3571428571428572) internal successors, (152), 112 states have internal predecessors, (152), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 06:28:25,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 180 transitions. [2024-11-09 06:28:25,973 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 180 transitions. Word has length 84 [2024-11-09 06:28:25,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:28:25,974 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 180 transitions. [2024-11-09 06:28:25,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:28:25,974 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 180 transitions. [2024-11-09 06:28:25,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 06:28:25,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:28:25,976 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:25,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:26,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:26,177 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:28:26,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:28:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash -2076711007, now seen corresponding path program 1 times [2024-11-09 06:28:26,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:28:26,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586045459] [2024-11-09 06:28:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:26,178 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 06:28:26,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:28:26,181 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:26,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:26,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:28:26,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:28:26,905 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 06:28:27,515 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 109 treesize of output 82 [2024-11-09 06:28:27,905 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 109 treesize of output 82 [2024-11-09 06:28:28,484 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 109 treesize of output 82 [2024-11-09 06:28:28,729 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 109 treesize of output 82 [2024-11-09 06:28:28,848 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:28:28,849 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 152 treesize of output 62 [2024-11-09 06:28:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:28:28,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:28:29,373 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_198 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_52| (_ BitVec 64))) (or (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_52|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_52|)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.leq .cse0 .cse0)) (not (= (let ((.cse2 (let ((.cse3 (select (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_198) |c_~#double_Array_0~0.base|))) (concat (select .cse3 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse3 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_52|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_52|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_52|)))))) is different from false [2024-11-09 06:28:29,444 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_197 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_198 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_52| (_ BitVec 64))) (or (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_52|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_52|)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.leq .cse0 .cse0)) (not (= (let ((.cse2 (let ((.cse3 (select (store (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_197) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_198) |c_~#double_Array_0~0.base|))) (concat (select .cse3 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse3 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_52|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_52|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_52|)))))) is different from false [2024-11-09 06:28:29,517 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:28:29,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586045459] [2024-11-09 06:28:29,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586045459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:28:29,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1343976737] [2024-11-09 06:28:29,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:29,517 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:28:29,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:28:29,519 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:28:29,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-09 06:28:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:30,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:28:30,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:28:31,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-09 06:28:32,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:28:32,084 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 1 case distinctions, treesize of input 33 treesize of output 31 [2024-11-09 06:28:32,236 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 37 treesize of output 31 [2024-11-09 06:28:32,309 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 37 treesize of output 31 [2024-11-09 06:28:32,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:28:32,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 18 [2024-11-09 06:28:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:28:32,572 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:28:32,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1343976737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:28:32,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:28:32,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-11-09 06:28:32,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83645022] [2024-11-09 06:28:32,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:28:32,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:28:32,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:28:32,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:28:32,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=224, Unknown=2, NotChecked=62, Total=342 [2024-11-09 06:28:32,574 INFO L87 Difference]: Start difference. First operand 129 states and 180 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:28:35,828 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 [] [2024-11-09 06:28:36,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:28:36,705 INFO L93 Difference]: Finished difference Result 383 states and 536 transitions. [2024-11-09 06:28:36,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:28:36,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 85 [2024-11-09 06:28:36,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:28:36,709 INFO L225 Difference]: With dead ends: 383 [2024-11-09 06:28:36,709 INFO L226 Difference]: Without dead ends: 257 [2024-11-09 06:28:36,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=61, Invalid=251, Unknown=2, NotChecked=66, Total=380 [2024-11-09 06:28:36,711 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 314 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:28:36,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 335 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 415 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-09 06:28:36,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-09 06:28:36,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 143. [2024-11-09 06:28:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 126 states have (on average 1.380952380952381) internal successors, (174), 126 states have internal predecessors, (174), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-09 06:28:36,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 202 transitions. [2024-11-09 06:28:36,731 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 202 transitions. Word has length 85 [2024-11-09 06:28:36,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:28:36,731 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 202 transitions. [2024-11-09 06:28:36,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:28:36,732 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 202 transitions. [2024-11-09 06:28:36,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 06:28:36,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:28:36,733 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:28:36,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:36,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2024-11-09 06:28:37,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:28:37,134 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:28:37,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:28:37,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1432249281, now seen corresponding path program 1 times [2024-11-09 06:28:37,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:28:37,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215616350] [2024-11-09 06:28:37,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:37,136 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 06:28:37,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:28:37,140 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:37,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:28:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:37,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:28:37,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:28:37,617 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 16 treesize of output 11 [2024-11-09 06:28:37,881 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 16 treesize of output 11 [2024-11-09 06:28:38,088 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 16 treesize of output 11 [2024-11-09 06:28:38,238 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 11 [2024-11-09 06:28:38,614 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 0 case distinctions, treesize of input 38 treesize of output 25 [2024-11-09 06:28:39,023 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 0 case distinctions, treesize of input 38 treesize of output 34 [2024-11-09 06:28:39,221 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 42 treesize of output 36 [2024-11-09 06:28:39,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:28:39,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 46 [2024-11-09 06:28:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 46 proven. 62 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-09 06:28:39,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:28:40,294 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_249 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_int| |c_~#double_Array_0~0.base| v_ArrVal_249))) (let ((.cse0 (select .cse3 |c_~#signed_char_Array_0~0.base|))) (let ((.cse1 ((_ sign_extend 24) ((_ extract 7 0) (select .cse0 |c_~#signed_char_Array_0~0.offset|))))) (or (= ((_ sign_extend 24) ((_ extract 7 0) (select .cse0 (bvadd (_ bv1 32) |c_~#signed_char_Array_0~0.offset|)))) .cse1) (let ((.cse2 (select (select .cse3 |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|))) (bvsge (bvmul (_ bv2 32) .cse2) (bvadd .cse2 .cse1)))))))) is different from false [2024-11-09 06:28:40,397 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_249 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd (_ bv1 32) |c_~#signed_char_Array_0~0.offset|))) (let ((.cse2 (store (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| (let ((.cse5 (select |c_#memory_int| |c_~#signed_char_Array_0~0.base|))) (store .cse5 |c_~#signed_char_Array_0~0.offset| ((_ sign_extend 24) ((_ extract 7 0) (select .cse5 .cse4)))))) |c_~#double_Array_0~0.base| v_ArrVal_249))) (let ((.cse3 (select .cse2 |c_~#signed_char_Array_0~0.base|))) (let ((.cse1 ((_ sign_extend 24) ((_ extract 7 0) (select .cse3 |c_~#signed_char_Array_0~0.offset|))))) (or (let ((.cse0 (select (select .cse2 |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|))) (bvsge (bvmul (_ bv2 32) .cse0) (bvadd .cse1 .cse0))) (= .cse1 ((_ sign_extend 24) ((_ extract 7 0) (select .cse3 .cse4)))))))))) is different from false [2024-11-09 06:28:40,487 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:28:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215616350] [2024-11-09 06:28:40,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215616350] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:28:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1310191220] [2024-11-09 06:28:40,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:40,487 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:28:40,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:28:40,489 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:28:40,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-09 06:28:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:41,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:28:41,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:28:41,892 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 16 treesize of output 11 [2024-11-09 06:28:42,244 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 16 treesize of output 11 [2024-11-09 06:28:42,653 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 16 treesize of output 11 [2024-11-09 06:28:42,890 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 20 treesize of output 19 [2024-11-09 06:28:43,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 27 [2024-11-09 06:28:44,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2024-11-09 06:28:44,971 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 46 treesize of output 38 [2024-11-09 06:28:46,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 50 [2024-11-09 06:28:46,231 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 61 proven. 62 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-09 06:28:46,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:28:46,370 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_273 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| |c_~#double_Array_0~0.base| v_ArrVal_273))) (let ((.cse3 (select .cse2 |c_~#signed_char_Array_0~0.base|))) (let ((.cse1 ((_ sign_extend 24) ((_ extract 7 0) (select .cse3 |c_~#signed_char_Array_0~0.offset|))))) (or (let ((.cse0 (select (select .cse2 |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|))) (bvsge (bvmul (_ bv2 32) .cse0) (bvadd .cse1 .cse0))) (= .cse1 ((_ sign_extend 24) ((_ extract 7 0) (select .cse3 (bvadd (_ bv1 32) |c_~#signed_char_Array_0~0.offset|)))))))))) is different from false [2024-11-09 06:28:46,486 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_273 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (bvadd (_ bv1 32) |c_~#signed_char_Array_0~0.offset|))) (let ((.cse2 (store (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| (let ((.cse5 (select |c_#memory_int| |c_~#signed_char_Array_0~0.base|))) (store .cse5 |c_~#signed_char_Array_0~0.offset| ((_ sign_extend 24) ((_ extract 7 0) (select .cse5 .cse4)))))) |c_~#double_Array_0~0.base| v_ArrVal_273))) (let ((.cse3 (select .cse2 |c_~#signed_char_Array_0~0.base|))) (let ((.cse1 ((_ sign_extend 24) ((_ extract 7 0) (select .cse3 |c_~#signed_char_Array_0~0.offset|))))) (or (let ((.cse0 (select (select .cse2 |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|))) (bvsge (bvmul .cse0 (_ bv2 32)) (bvadd .cse0 .cse1))) (= ((_ sign_extend 24) ((_ extract 7 0) (select .cse3 .cse4))) .cse1))))))) is different from false [2024-11-09 06:28:46,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1310191220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:28:46,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599807862] [2024-11-09 06:28:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:46,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:28:46,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:28:46,594 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:28:46,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 06:28:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:28:46,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 06:28:46,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:28:48,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-09 06:28:48,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2024-11-09 06:28:49,248 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 46 treesize of output 35 [2024-11-09 06:28:49,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:28:49,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 40 [2024-11-09 06:28:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 74 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:28:49,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:28:50,066 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_293 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv1 32) |c_~#signed_char_Array_0~0.offset|))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| (let ((.cse2 (select |c_#memory_int| |c_~#signed_char_Array_0~0.base|))) (store .cse2 |c_~#signed_char_Array_0~0.offset| ((_ sign_extend 24) ((_ extract 7 0) (select .cse2 .cse1)))))) |c_~#double_Array_0~0.base| v_ArrVal_293) |c_~#signed_char_Array_0~0.base|))) (= ((_ sign_extend 24) ((_ extract 7 0) (select .cse0 |c_~#signed_char_Array_0~0.offset|))) ((_ sign_extend 24) ((_ extract 7 0) (select .cse0 .cse1))))))) is different from false [2024-11-09 06:28:50,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599807862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:28:50,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:28:50,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 15] total 37 [2024-11-09 06:28:50,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327681784] [2024-11-09 06:28:50,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:28:50,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-09 06:28:50,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:28:50,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-09 06:28:50,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1574, Unknown=37, NotChecked=430, Total=2256 [2024-11-09 06:28:50,117 INFO L87 Difference]: Start difference. First operand 143 states and 202 transitions. Second operand has 38 states, 34 states have (on average 4.235294117647059) internal successors, (144), 36 states have internal predecessors, (144), 13 states have call successors, (27), 10 states have call predecessors, (27), 13 states have return successors, (27), 10 states have call predecessors, (27), 13 states have call successors, (27) [2024-11-09 06:29:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:04,766 INFO L93 Difference]: Finished difference Result 751 states and 1020 transitions. [2024-11-09 06:29:04,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 06:29:04,767 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 34 states have (on average 4.235294117647059) internal successors, (144), 36 states have internal predecessors, (144), 13 states have call successors, (27), 10 states have call predecessors, (27), 13 states have return successors, (27), 10 states have call predecessors, (27), 13 states have call successors, (27) Word has length 86 [2024-11-09 06:29:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:04,771 INFO L225 Difference]: With dead ends: 751 [2024-11-09 06:29:04,772 INFO L226 Difference]: Without dead ends: 611 [2024-11-09 06:29:04,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1670 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1039, Invalid=5416, Unknown=45, NotChecked=810, Total=7310 [2024-11-09 06:29:04,776 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 1664 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 2618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:04,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 1379 Invalid, 2618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-09 06:29:04,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-09 06:29:04,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 417. [2024-11-09 06:29:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 368 states have (on average 1.3451086956521738) internal successors, (495), 370 states have internal predecessors, (495), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-09 06:29:04,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 563 transitions. [2024-11-09 06:29:04,864 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 563 transitions. Word has length 86 [2024-11-09 06:29:04,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:04,865 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 563 transitions. [2024-11-09 06:29:04,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 34 states have (on average 4.235294117647059) internal successors, (144), 36 states have internal predecessors, (144), 13 states have call successors, (27), 10 states have call predecessors, (27), 13 states have return successors, (27), 10 states have call predecessors, (27), 13 states have call successors, (27) [2024-11-09 06:29:04,866 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 563 transitions. [2024-11-09 06:29:04,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 06:29:04,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:04,868 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:04,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 06:29:05,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:29:05,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2024-11-09 06:29:05,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:29:05,474 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:05,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:05,475 INFO L85 PathProgramCache]: Analyzing trace with hash -670302247, now seen corresponding path program 1 times [2024-11-09 06:29:05,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:05,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601133442] [2024-11-09 06:29:05,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:05,477 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 06:29:05,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:05,479 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:29:05,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Waiting until timeout for monitored process [2024-11-09 06:29:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:05,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:29:05,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:05,896 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:05,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 36 [2024-11-09 06:29:05,978 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:29:05,978 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:05,978 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:05,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601133442] [2024-11-09 06:29:05,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601133442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:05,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:05,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:29:05,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730434659] [2024-11-09 06:29:05,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:05,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:29:05,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:05,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:29:05,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:29:05,982 INFO L87 Difference]: Start difference. First operand 417 states and 563 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:29:07,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:07,845 INFO L93 Difference]: Finished difference Result 954 states and 1289 transitions. [2024-11-09 06:29:07,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:29:07,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-11-09 06:29:07,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:07,852 INFO L225 Difference]: With dead ends: 954 [2024-11-09 06:29:07,852 INFO L226 Difference]: Without dead ends: 540 [2024-11-09 06:29:07,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 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 06:29:07,855 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 48 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:07,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 370 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-09 06:29:07,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-09 06:29:07,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 429. [2024-11-09 06:29:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 380 states have (on average 1.3342105263157895) internal successors, (507), 382 states have internal predecessors, (507), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-09 06:29:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 575 transitions. [2024-11-09 06:29:07,918 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 575 transitions. Word has length 86 [2024-11-09 06:29:07,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:07,919 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 575 transitions. [2024-11-09 06:29:07,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:29:07,919 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 575 transitions. [2024-11-09 06:29:07,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 06:29:07,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:07,922 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:07,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Ended with exit code 0 [2024-11-09 06:29:08,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:29:08,123 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:08,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:08,124 INFO L85 PathProgramCache]: Analyzing trace with hash -709643561, now seen corresponding path program 1 times [2024-11-09 06:29:08,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:08,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699909257] [2024-11-09 06:29:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:08,125 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 06:29:08,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:08,129 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:29:08,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:29:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:08,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:29:08,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:29:08,612 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:08,612 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:08,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699909257] [2024-11-09 06:29:08,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699909257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:08,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:08,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:29:08,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935859140] [2024-11-09 06:29:08,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:08,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:29:08,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:08,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:29:08,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:29:08,614 INFO L87 Difference]: Start difference. First operand 429 states and 575 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:29:09,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:09,141 INFO L93 Difference]: Finished difference Result 1057 states and 1409 transitions. [2024-11-09 06:29:09,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:29:09,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-11-09 06:29:09,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:09,147 INFO L225 Difference]: With dead ends: 1057 [2024-11-09 06:29:09,147 INFO L226 Difference]: Without dead ends: 631 [2024-11-09 06:29:09,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:29:09,150 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 85 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:09,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 318 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:29:09,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-09 06:29:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 577. [2024-11-09 06:29:09,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 506 states have (on average 1.316205533596838) internal successors, (666), 508 states have internal predecessors, (666), 48 states have call successors, (48), 22 states have call predecessors, (48), 22 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 06:29:09,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 762 transitions. [2024-11-09 06:29:09,267 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 762 transitions. Word has length 86 [2024-11-09 06:29:09,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:09,268 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 762 transitions. [2024-11-09 06:29:09,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:29:09,268 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 762 transitions. [2024-11-09 06:29:09,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 06:29:09,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:09,270 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:29:09,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:29:09,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:29:09,471 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:09,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2035040029, now seen corresponding path program 1 times [2024-11-09 06:29:09,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:09,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540753718] [2024-11-09 06:29:09,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:09,472 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 06:29:09,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:09,474 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:29:09,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:29:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:09,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:29:09,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:10,241 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 06:29:11,077 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 107 treesize of output 80 [2024-11-09 06:29:11,402 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 107 treesize of output 80 [2024-11-09 06:29:11,787 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 107 treesize of output 80 [2024-11-09 06:29:11,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:11,933 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 150 treesize of output 60 [2024-11-09 06:29:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 4 proven. 92 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 06:29:12,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:29:12,601 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_351 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_77| (_ BitVec 64))) (or (not (= (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_351) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_77|)))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_77|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2024-11-09 06:29:12,669 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:12,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540753718] [2024-11-09 06:29:12,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540753718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:29:12,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1974785837] [2024-11-09 06:29:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:12,670 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:29:12,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:29:12,673 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:29:12,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-09 06:29:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:14,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:29:14,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:15,328 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 19 treesize of output 8 [2024-11-09 06:29:21,189 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 103 treesize of output 74 [2024-11-09 06:29:21,646 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 103 treesize of output 74 [2024-11-09 06:29:22,215 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 103 treesize of output 74 [2024-11-09 06:29:22,490 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 140 treesize of output 64 [2024-11-09 06:29:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 4 proven. 92 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 06:29:24,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:29:24,910 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_376 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_77| (_ BitVec 64))) (or (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_77|)) (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_376) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_77|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2024-11-09 06:29:24,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1974785837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:29:24,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586812543] [2024-11-09 06:29:24,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:24,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:29:24,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:29:24,961 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:29:24,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 06:29:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:25,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:29:25,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:25,941 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 26 treesize of output 1 [2024-11-09 06:29:26,773 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 58 treesize of output 43 [2024-11-09 06:29:27,007 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 58 treesize of output 43 [2024-11-09 06:29:27,270 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 58 treesize of output 43 [2024-11-09 06:29:27,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:27,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 121 treesize of output 77 [2024-11-09 06:29:27,727 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:27,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 192 treesize of output 124 [2024-11-09 06:29:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 4 proven. 101 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 06:29:28,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:29:30,243 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_402 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_77| (_ BitVec 64))) (or (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_77|)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.leq .cse0 .cse0)) (not (= (let ((.cse2 (let ((.cse3 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_402) |c_~#double_Array_0~0.base|))) (concat (select .cse3 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse3 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_77|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_77|)))))) is different from false [2024-11-09 06:29:30,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586812543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:29:30,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:29:30,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 14] total 34 [2024-11-09 06:29:30,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774143705] [2024-11-09 06:29:30,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:29:30,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 06:29:30,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:30,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 06:29:30,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1672, Unknown=5, NotChecked=258, Total=2162 [2024-11-09 06:29:30,314 INFO L87 Difference]: Start difference. First operand 577 states and 762 transitions. Second operand has 35 states, 32 states have (on average 3.5) internal successors, (112), 31 states have internal predecessors, (112), 8 states have call successors, (23), 8 states have call predecessors, (23), 9 states have return successors, (24), 5 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-09 06:29:41,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:43,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:45,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:47,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:49,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:51,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:53,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:55,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:57,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:59,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:01,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:04,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:06,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:08,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:10,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:12,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:14,079 WARN L539 Checker$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 06:30:16,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:18,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:20,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:22,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:24,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:26,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:28,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:30,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:32,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:34,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:36,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:38,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:40,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:42,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:44,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:46,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:48,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:50,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:52,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:55,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:57,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:30:59,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:01,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:03,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:05,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:07,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:09,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:11,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:13,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:15,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:17,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:19,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:21,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:23,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:25,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:27,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:29,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:31,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:33,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:35,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:37,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:39,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:41,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:43,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:49,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:52,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:02,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:04,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:06,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:08,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:10,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:12,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:18,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:22,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:25,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:27,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:29,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:31,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:33,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:35,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:38,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:40,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:42,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:44,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:46,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:48,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:50,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:52,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:32:52,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:52,697 INFO L93 Difference]: Finished difference Result 1492 states and 1972 transitions. [2024-11-09 06:32:52,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 06:32:52,698 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 32 states have (on average 3.5) internal successors, (112), 31 states have internal predecessors, (112), 8 states have call successors, (23), 8 states have call predecessors, (23), 9 states have return successors, (24), 5 states have call predecessors, (24), 8 states have call successors, (24) Word has length 86 [2024-11-09 06:32:52,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:52,705 INFO L225 Difference]: With dead ends: 1492 [2024-11-09 06:32:52,705 INFO L226 Difference]: Without dead ends: 1050 [2024-11-09 06:32:52,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 279 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1161 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=490, Invalid=3169, Unknown=13, NotChecked=360, Total=4032 [2024-11-09 06:32:52,709 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 571 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 42 mSolverCounterUnsat, 87 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 182.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 87 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 183.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:52,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1245 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2256 Invalid, 87 Unknown, 0 Unchecked, 183.7s Time] [2024-11-09 06:32:52,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2024-11-09 06:32:52,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 732. [2024-11-09 06:32:52,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 643 states have (on average 1.3063763608087091) internal successors, (840), 648 states have internal predecessors, (840), 59 states have call successors, (59), 29 states have call predecessors, (59), 29 states have return successors, (59), 54 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-09 06:32:52,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 958 transitions. [2024-11-09 06:32:52,821 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 958 transitions. Word has length 86 [2024-11-09 06:32:52,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:52,822 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 958 transitions. [2024-11-09 06:32:52,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 32 states have (on average 3.5) internal successors, (112), 31 states have internal predecessors, (112), 8 states have call successors, (23), 8 states have call predecessors, (23), 9 states have return successors, (24), 5 states have call predecessors, (24), 8 states have call successors, (24) [2024-11-09 06:32:52,822 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 958 transitions. [2024-11-09 06:32:52,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 06:32:52,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:52,824 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:32:52,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 06:32:53,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:32:53,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-09 06:32:53,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:32:53,425 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:32:53,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:53,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1159021023, now seen corresponding path program 1 times [2024-11-09 06:32:53,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:32:53,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055495221] [2024-11-09 06:32:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:53,426 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 06:32:53,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:32:53,430 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:32:53,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:32:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:53,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:32:53,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:53,711 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-09 06:32:53,711 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:32:53,712 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:32:53,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055495221] [2024-11-09 06:32:53,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055495221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:32:53,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:32:53,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:32:53,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145487440] [2024-11-09 06:32:53,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:53,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:32:53,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:32:53,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:32:53,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:32:53,714 INFO L87 Difference]: Start difference. First operand 732 states and 958 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 06:32:53,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:32:53,953 INFO L93 Difference]: Finished difference Result 1302 states and 1707 transitions. [2024-11-09 06:32:53,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:32:53,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 86 [2024-11-09 06:32:53,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:32:53,957 INFO L225 Difference]: With dead ends: 1302 [2024-11-09 06:32:53,957 INFO L226 Difference]: Without dead ends: 621 [2024-11-09 06:32:53,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:32:53,959 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 1 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:32:53,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 585 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:32:53,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-09 06:32:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 499. [2024-11-09 06:32:54,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 438 states have (on average 1.2922374429223744) internal successors, (566), 441 states have internal predecessors, (566), 39 states have call successors, (39), 21 states have call predecessors, (39), 21 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-09 06:32:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 644 transitions. [2024-11-09 06:32:54,033 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 644 transitions. Word has length 86 [2024-11-09 06:32:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:32:54,033 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 644 transitions. [2024-11-09 06:32:54,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-09 06:32:54,034 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 644 transitions. [2024-11-09 06:32:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 06:32:54,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:32:54,035 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:32:54,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:32:54,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:32:54,236 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:32:54,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:32:54,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1689251668, now seen corresponding path program 1 times [2024-11-09 06:32:54,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:32:54,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977400120] [2024-11-09 06:32:54,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:32:54,237 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 06:32:54,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:32:54,238 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:32:54,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Waiting until timeout for monitored process [2024-11-09 06:32:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:32:54,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:32:54,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:32:54,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:32:54,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:32:54,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 121 treesize of output 67 [2024-11-09 06:32:56,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:32:56,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 172 treesize of output 52 [2024-11-09 06:32:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:32:56,764 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:32:56,765 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:32:56,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977400120] [2024-11-09 06:32:56,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977400120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:32:56,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:32:56,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:32:56,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142207288] [2024-11-09 06:32:56,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:56,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:32:56,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:32:56,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:32:56,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2024-11-09 06:32:56,767 INFO L87 Difference]: Start difference. First operand 499 states and 644 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:32:59,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:01,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:04,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:10,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:12,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:14,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:16,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:18,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:20,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:22,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:24,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:26,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:28,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:30,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:32,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:34,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:36,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:38,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:40,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:42,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:44,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:46,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:48,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:50,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:52,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:54,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:56,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:33:58,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:00,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:02,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:04,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:06,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:08,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:10,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:12,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:14,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:16,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:18,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:20,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:22,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:24,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:26,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:28,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:30,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:33,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:35,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:37,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:39,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:41,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:43,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:45,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:34:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:34:45,287 INFO L93 Difference]: Finished difference Result 797 states and 1035 transitions. [2024-11-09 06:34:45,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:34:45,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 87 [2024-11-09 06:34:45,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:34:45,293 INFO L225 Difference]: With dead ends: 797 [2024-11-09 06:34:45,293 INFO L226 Difference]: Without dead ends: 622 [2024-11-09 06:34:45,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=20, Invalid=33, Unknown=3, NotChecked=0, Total=56 [2024-11-09 06:34:45,295 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 99 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 1 mSolverCounterUnsat, 51 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 51 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:34:45,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 519 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 270 Invalid, 51 Unknown, 0 Unchecked, 104.3s Time] [2024-11-09 06:34:45,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-09 06:34:45,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 499. [2024-11-09 06:34:45,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 438 states have (on average 1.2808219178082192) internal successors, (561), 441 states have internal predecessors, (561), 39 states have call successors, (39), 21 states have call predecessors, (39), 21 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-09 06:34:45,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 639 transitions. [2024-11-09 06:34:45,379 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 639 transitions. Word has length 87 [2024-11-09 06:34:45,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:34:45,379 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 639 transitions. [2024-11-09 06:34:45,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:34:45,380 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 639 transitions. [2024-11-09 06:34:45,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 06:34:45,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:34:45,381 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:34:45,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Ended with exit code 0 [2024-11-09 06:34:45,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:34:45,582 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:34:45,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:34:45,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1650297396, now seen corresponding path program 1 times [2024-11-09 06:34:45,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:34:45,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917152777] [2024-11-09 06:34:45,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:34:45,583 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 06:34:45,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:34:45,586 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:34:45,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:34:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:34:45,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:34:45,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:34:46,294 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 06:34:47,069 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 109 treesize of output 82 [2024-11-09 06:34:47,618 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 109 treesize of output 82 [2024-11-09 06:34:48,226 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 109 treesize of output 82 [2024-11-09 06:34:48,474 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:34:48,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 126 treesize of output 67 [2024-11-09 06:34:53,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:34:53,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 183 treesize of output 112 [2024-11-09 06:34:53,706 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:34:53,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 280 treesize of output 106 [2024-11-09 06:34:54,218 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:34:54,218 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:34:54,218 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:34:54,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917152777] [2024-11-09 06:34:54,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917152777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:34:54,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:34:54,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-09 06:34:54,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329660412] [2024-11-09 06:34:54,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:54,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 06:34:54,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:34:54,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 06:34:54,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=230, Unknown=2, NotChecked=0, Total=272 [2024-11-09 06:34:54,222 INFO L87 Difference]: Start difference. First operand 499 states and 639 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:34:57,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:01,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:03,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:05,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:07,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:09,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:11,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:13,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:15,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:17,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:19,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:21,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:23,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:25,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:27,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:30,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:32,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:34,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:36,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:38,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:40,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:42,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:44,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:46,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:48,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:50,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:52,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:56,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:35:58,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:00,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:03,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:05,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:07,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:09,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:11,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:13,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:15,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:22,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:24,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:26,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:28,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:30,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:32,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:33,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:33,361 INFO L93 Difference]: Finished difference Result 1335 states and 1732 transitions. [2024-11-09 06:36:33,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 06:36:33,362 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2024-11-09 06:36:33,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:33,365 INFO L225 Difference]: With dead ends: 1335 [2024-11-09 06:36:33,365 INFO L226 Difference]: Without dead ends: 939 [2024-11-09 06:36:33,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=173, Invalid=879, Unknown=4, NotChecked=0, Total=1056 [2024-11-09 06:36:33,367 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 330 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 9 mSolverCounterUnsat, 43 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 91.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 43 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:33,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 895 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1463 Invalid, 43 Unknown, 0 Unchecked, 92.4s Time] [2024-11-09 06:36:33,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-11-09 06:36:33,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 618. [2024-11-09 06:36:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 543 states have (on average 1.283609576427256) internal successors, (697), 544 states have internal predecessors, (697), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:36:33,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 791 transitions. [2024-11-09 06:36:33,452 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 791 transitions. Word has length 88 [2024-11-09 06:36:33,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:33,452 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 791 transitions. [2024-11-09 06:36:33,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 16 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:36:33,453 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 791 transitions. [2024-11-09 06:36:33,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 06:36:33,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:33,454 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:36:33,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:36:33,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:36:33,656 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:36:33,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:33,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1063491382, now seen corresponding path program 1 times [2024-11-09 06:36:33,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:36:33,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1350645875] [2024-11-09 06:36:33,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:33,657 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 06:36:33,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:36:33,659 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:36:33,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Waiting until timeout for monitored process [2024-11-09 06:36:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:34,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:36:34,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:34,458 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 06:36:35,181 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 109 treesize of output 82 [2024-11-09 06:36:35,624 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 109 treesize of output 82 [2024-11-09 06:36:36,237 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 109 treesize of output 82 [2024-11-09 06:36:36,580 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:36:36,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 126 treesize of output 67 [2024-11-09 06:36:40,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:36:40,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 141 treesize of output 70 [2024-11-09 06:36:40,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:36:40,986 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 156 treesize of output 60 [2024-11-09 06:36:41,074 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:36:41,074 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:36:41,074 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:36:41,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1350645875] [2024-11-09 06:36:41,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1350645875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:41,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:36:41,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:36:41,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119185448] [2024-11-09 06:36:41,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:41,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:36:41,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:36:41,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:36:41,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2024-11-09 06:36:41,076 INFO L87 Difference]: Start difference. First operand 618 states and 791 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:36:43,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:47,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:49,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:51,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:53,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:55,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:57,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:36:59,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:01,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:03,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:05,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:07,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:09,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:11,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:13,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:15,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:17,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:19,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:21,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:23,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:25,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:28,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:30,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:32,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:34,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:36,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:38,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:42,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:44,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:46,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:48,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:50,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:52,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:54,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:56,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:58,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:00,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:03,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:05,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:07,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:09,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:11,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:13,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:13,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:13,821 INFO L93 Difference]: Finished difference Result 1243 states and 1611 transitions. [2024-11-09 06:38:13,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:38:13,822 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2024-11-09 06:38:13,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:13,825 INFO L225 Difference]: With dead ends: 1243 [2024-11-09 06:38:13,825 INFO L226 Difference]: Without dead ends: 777 [2024-11-09 06:38:13,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=43, Invalid=109, Unknown=4, NotChecked=0, Total=156 [2024-11-09 06:38:13,826 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 239 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 5 mSolverCounterUnsat, 43 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 43 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:13,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 432 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 636 Invalid, 43 Unknown, 0 Unchecked, 88.4s Time] [2024-11-09 06:38:13,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-09 06:38:13,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 618. [2024-11-09 06:38:13,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 543 states have (on average 1.274401473296501) internal successors, (692), 544 states have internal predecessors, (692), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:38:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 786 transitions. [2024-11-09 06:38:13,924 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 786 transitions. Word has length 88 [2024-11-09 06:38:13,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:13,925 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 786 transitions. [2024-11-09 06:38:13,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:38:13,925 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 786 transitions. [2024-11-09 06:38:13,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 06:38:13,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:13,927 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:38:13,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Ended with exit code 0 [2024-11-09 06:38:14,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:38:14,128 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:38:14,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash -246829864, now seen corresponding path program 1 times [2024-11-09 06:38:14,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:38:14,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087352064] [2024-11-09 06:38:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:14,130 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 06:38:14,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:38:14,133 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:38:14,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:38:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:14,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:38:14,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:38:15,729 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 109 treesize of output 82 [2024-11-09 06:38:16,308 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 109 treesize of output 82 [2024-11-09 06:38:17,021 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 109 treesize of output 82 [2024-11-09 06:38:17,267 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 109 treesize of output 82 [2024-11-09 06:38:17,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:17,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 121 treesize of output 77 [2024-11-09 06:38:24,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:24,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 193 treesize of output 125 [2024-11-09 06:38:24,796 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:24,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 337 treesize of output 127 [2024-11-09 06:38:25,231 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:38:25,231 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:38:25,231 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:38:25,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087352064] [2024-11-09 06:38:25,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087352064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:25,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:25,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-09 06:38:25,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513577646] [2024-11-09 06:38:25,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:25,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:38:25,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:38:25,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:38:25,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=253, Unknown=3, NotChecked=0, Total=306 [2024-11-09 06:38:25,233 INFO L87 Difference]: Start difference. First operand 618 states and 786 transitions. Second operand has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 17 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:38:27,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:32,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:34,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:36,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:38,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:40,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:42,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:44,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:46,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:48,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:50,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:52,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:54,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:56,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:58,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:00,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:02,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:04,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:06,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:08,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:10,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:12,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:14,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:16,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:18,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:20,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:22,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:24,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:29,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:31,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:33,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:35,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:37,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:39,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:41,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:43,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:46,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:48,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:50,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:56,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:58,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:00,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:02,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:04,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:06,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:07,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:07,027 INFO L93 Difference]: Finished difference Result 1216 states and 1572 transitions. [2024-11-09 06:40:07,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 06:40:07,029 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 17 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2024-11-09 06:40:07,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:07,032 INFO L225 Difference]: With dead ends: 1216 [2024-11-09 06:40:07,032 INFO L226 Difference]: Without dead ends: 992 [2024-11-09 06:40:07,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=194, Invalid=923, Unknown=5, NotChecked=0, Total=1122 [2024-11-09 06:40:07,034 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 475 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 19 mSolverCounterUnsat, 45 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 1538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 45 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:07,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 950 Invalid, 1538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1474 Invalid, 45 Unknown, 0 Unchecked, 95.5s Time] [2024-11-09 06:40:07,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2024-11-09 06:40:07,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 665. [2024-11-09 06:40:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 590 states have (on average 1.2915254237288136) internal successors, (762), 591 states have internal predecessors, (762), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:40:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 856 transitions. [2024-11-09 06:40:07,118 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 856 transitions. Word has length 89 [2024-11-09 06:40:07,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:07,118 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 856 transitions. [2024-11-09 06:40:07,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7777777777777777) internal successors, (50), 17 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:40:07,119 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 856 transitions. [2024-11-09 06:40:07,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 06:40:07,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:07,120 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:07,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:07,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:07,321 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:07,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:07,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1509938581, now seen corresponding path program 1 times [2024-11-09 06:40:07,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:07,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308109446] [2024-11-09 06:40:07,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:07,322 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 06:40:07,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:07,325 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:07,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 (25)] Waiting until timeout for monitored process [2024-11-09 06:40:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:07,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 06:40:07,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:08,310 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 109 treesize of output 82 [2024-11-09 06:40:08,634 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 109 treesize of output 82 [2024-11-09 06:40:08,928 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 109 treesize of output 82 [2024-11-09 06:40:09,046 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 172 treesize of output 98 [2024-11-09 06:40:10,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:10,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 416 treesize of output 146 [2024-11-09 06:40:10,388 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:40:10,388 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:40:11,591 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:40:11,591 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:11,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308109446] [2024-11-09 06:40:11,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308109446] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:40:11,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:40:11,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-09 06:40:11,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654165257] [2024-11-09 06:40:11,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:11,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:40:11,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:11,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:40:11,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:40:11,593 INFO L87 Difference]: Start difference. First operand 665 states and 856 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:13,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:13,261 INFO L93 Difference]: Finished difference Result 727 states and 936 transitions. [2024-11-09 06:40:13,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:40:13,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2024-11-09 06:40:13,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:13,265 INFO L225 Difference]: With dead ends: 727 [2024-11-09 06:40:13,266 INFO L226 Difference]: Without dead ends: 725 [2024-11-09 06:40:13,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:40:13,267 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 88 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:13,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 470 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 06:40:13,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-09 06:40:13,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 713. [2024-11-09 06:40:13,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 638 states have (on average 1.2946708463949843) internal successors, (826), 639 states have internal predecessors, (826), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:40:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 920 transitions. [2024-11-09 06:40:13,354 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 920 transitions. Word has length 89 [2024-11-09 06:40:13,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:13,354 INFO L471 AbstractCegarLoop]: Abstraction has 713 states and 920 transitions. [2024-11-09 06:40:13,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:13,355 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 920 transitions. [2024-11-09 06:40:13,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 06:40:13,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:13,356 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:13,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 (25)] Ended with exit code 0 [2024-11-09 06:40:13,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:13,557 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:13,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:13,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1511785623, now seen corresponding path program 1 times [2024-11-09 06:40:13,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:13,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760761281] [2024-11-09 06:40:13,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:13,558 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 06:40:13,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:13,560 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:13,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:13,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:40:13,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:40:13,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:40:13,813 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:13,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760761281] [2024-11-09 06:40:13,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760761281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:13,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:13,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:40:13,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534338944] [2024-11-09 06:40:13,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:13,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:40:13,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:13,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:40:13,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:40:13,815 INFO L87 Difference]: Start difference. First operand 713 states and 920 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:13,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:13,911 INFO L93 Difference]: Finished difference Result 1255 states and 1630 transitions. [2024-11-09 06:40:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:40:13,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2024-11-09 06:40:13,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:13,914 INFO L225 Difference]: With dead ends: 1255 [2024-11-09 06:40:13,914 INFO L226 Difference]: Without dead ends: 725 [2024-11-09 06:40:13,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 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 06:40:13,916 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:13,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 505 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:40:13,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-09 06:40:13,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 725. [2024-11-09 06:40:13,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 650 states have (on average 1.2892307692307692) internal successors, (838), 651 states have internal predecessors, (838), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:40:13,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 932 transitions. [2024-11-09 06:40:13,997 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 932 transitions. Word has length 89 [2024-11-09 06:40:13,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:13,997 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 932 transitions. [2024-11-09 06:40:13,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:13,998 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 932 transitions. [2024-11-09 06:40:13,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:40:13,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:13,999 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:14,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Ended with exit code 0 [2024-11-09 06:40:14,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:14,200 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:14,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:14,200 INFO L85 PathProgramCache]: Analyzing trace with hash -527356662, now seen corresponding path program 1 times [2024-11-09 06:40:14,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:14,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197251749] [2024-11-09 06:40:14,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:14,201 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 06:40:14,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:14,202 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:14,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 (27)] Waiting until timeout for monitored process [2024-11-09 06:40:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:14,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:40:14,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:15,017 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 06:40:15,133 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 06:40:15,161 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 06:40:15,182 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 06:40:15,259 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:40:15,260 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:40:15,260 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:15,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197251749] [2024-11-09 06:40:15,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [197251749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:15,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:15,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:40:15,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796349572] [2024-11-09 06:40:15,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:15,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:40:15,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:15,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:40:15,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:40:15,262 INFO L87 Difference]: Start difference. First operand 725 states and 932 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:16,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:16,279 INFO L93 Difference]: Finished difference Result 1523 states and 1998 transitions. [2024-11-09 06:40:16,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:40:16,280 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 90 [2024-11-09 06:40:16,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:16,284 INFO L225 Difference]: With dead ends: 1523 [2024-11-09 06:40:16,284 INFO L226 Difference]: Without dead ends: 981 [2024-11-09 06:40:16,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:40:16,286 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 164 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:16,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 378 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:40:16,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-11-09 06:40:16,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 940. [2024-11-09 06:40:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 865 states have (on average 1.3144508670520232) internal successors, (1137), 866 states have internal predecessors, (1137), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:40:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1231 transitions. [2024-11-09 06:40:16,378 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1231 transitions. Word has length 90 [2024-11-09 06:40:16,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:16,381 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1231 transitions. [2024-11-09 06:40:16,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:16,381 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1231 transitions. [2024-11-09 06:40:16,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:40:16,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:16,383 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:16,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 (27)] Ended with exit code 0 [2024-11-09 06:40:16,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:16,584 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:16,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:16,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2142607594, now seen corresponding path program 1 times [2024-11-09 06:40:16,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:16,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1576912578] [2024-11-09 06:40:16,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:16,586 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 06:40:16,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:16,589 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:16,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:16,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:16,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:40:16,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:16,860 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 06:40:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:40:16,876 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:40:16,876 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:16,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1576912578] [2024-11-09 06:40:16,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1576912578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:16,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:16,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:40:16,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461010231] [2024-11-09 06:40:16,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:16,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:40:16,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:16,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:40:16,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:40:16,878 INFO L87 Difference]: Start difference. First operand 940 states and 1231 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:16,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:16,950 INFO L93 Difference]: Finished difference Result 1480 states and 1955 transitions. [2024-11-09 06:40:16,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:40:16,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 90 [2024-11-09 06:40:16,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:16,953 INFO L225 Difference]: With dead ends: 1480 [2024-11-09 06:40:16,953 INFO L226 Difference]: Without dead ends: 940 [2024-11-09 06:40:16,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 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 06:40:16,954 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:16,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 258 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:40:16,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-11-09 06:40:17,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2024-11-09 06:40:17,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 865 states have (on average 1.300578034682081) internal successors, (1125), 866 states have internal predecessors, (1125), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:40:17,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1219 transitions. [2024-11-09 06:40:17,041 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1219 transitions. Word has length 90 [2024-11-09 06:40:17,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:17,041 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1219 transitions. [2024-11-09 06:40:17,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:17,041 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1219 transitions. [2024-11-09 06:40:17,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:40:17,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:17,043 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:17,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Ended with exit code 0 [2024-11-09 06:40:17,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:17,244 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:17,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:17,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1923752876, now seen corresponding path program 1 times [2024-11-09 06:40:17,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:17,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897443337] [2024-11-09 06:40:17,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:17,245 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 06:40:17,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:17,246 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:17,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 (29)] Waiting until timeout for monitored process [2024-11-09 06:40:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:17,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:40:17,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:17,532 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 06:40:17,566 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:40:17,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:40:17,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897443337] [2024-11-09 06:40:17,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897443337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:17,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:17,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:40:17,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712640954] [2024-11-09 06:40:17,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:17,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:40:17,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:17,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:40:17,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:40:17,569 INFO L87 Difference]: Start difference. First operand 940 states and 1219 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:17,986 INFO L93 Difference]: Finished difference Result 1448 states and 1883 transitions. [2024-11-09 06:40:17,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:40:17,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 90 [2024-11-09 06:40:17,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:17,989 INFO L225 Difference]: With dead ends: 1448 [2024-11-09 06:40:17,990 INFO L226 Difference]: Without dead ends: 940 [2024-11-09 06:40:17,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 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 06:40:17,990 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:17,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 319 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:40:17,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2024-11-09 06:40:18,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 940. [2024-11-09 06:40:18,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 865 states have (on average 1.2867052023121388) internal successors, (1113), 866 states have internal predecessors, (1113), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:40:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1207 transitions. [2024-11-09 06:40:18,084 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1207 transitions. Word has length 90 [2024-11-09 06:40:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:18,084 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1207 transitions. [2024-11-09 06:40:18,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:18,085 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1207 transitions. [2024-11-09 06:40:18,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:40:18,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:18,086 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:18,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 (29)] Forceful destruction successful, exit code 0 [2024-11-09 06:40:18,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:18,287 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:18,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:18,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1553565970, now seen corresponding path program 1 times [2024-11-09 06:40:18,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:18,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164280907] [2024-11-09 06:40:18,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:18,288 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 06:40:18,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:18,291 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:18,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:18,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:40:18,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:19,648 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 109 treesize of output 82 [2024-11-09 06:40:19,981 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 109 treesize of output 82 [2024-11-09 06:40:20,336 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 109 treesize of output 82 [2024-11-09 06:40:20,661 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 109 treesize of output 82 [2024-11-09 06:40:20,752 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:20,752 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 152 treesize of output 62 [2024-11-09 06:40:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:40:20,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:40:21,398 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_660 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_659 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_139| (_ BitVec 64)) (v_ArrVal_663 (_ BitVec 32))) (or (not (= (let ((.cse0 (let ((.cse1 (select (store (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_659) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_660) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_139|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_139|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_139|)))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_139|) v_ArrVal_663))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2024-11-09 06:40:21,445 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:21,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164280907] [2024-11-09 06:40:21,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164280907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:40:21,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [489923084] [2024-11-09 06:40:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:21,445 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:40:21,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:40:21,449 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:40:21,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-09 06:40:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:22,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:40:22,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:23,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2024-11-09 06:40:23,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:23,801 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 1 case distinctions, treesize of input 43 treesize of output 37 [2024-11-09 06:40:23,928 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 55 treesize of output 47 [2024-11-09 06:40:23,987 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 55 treesize of output 47 [2024-11-09 06:40:24,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:24,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 28 [2024-11-09 06:40:24,213 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:40:24,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:40:24,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [489923084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:24,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:40:24,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 18 [2024-11-09 06:40:24,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149707239] [2024-11-09 06:40:24,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:24,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:40:24,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:24,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:40:24,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=387, Unknown=6, NotChecked=40, Total=506 [2024-11-09 06:40:24,216 INFO L87 Difference]: Start difference. First operand 940 states and 1207 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:26,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:26,397 INFO L93 Difference]: Finished difference Result 1866 states and 2421 transitions. [2024-11-09 06:40:26,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:40:26,399 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 90 [2024-11-09 06:40:26,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:26,404 INFO L225 Difference]: With dead ends: 1866 [2024-11-09 06:40:26,404 INFO L226 Difference]: Without dead ends: 1464 [2024-11-09 06:40:26,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=81, Invalid=423, Unknown=6, NotChecked=42, Total=552 [2024-11-09 06:40:26,406 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 227 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:26,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 578 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 06:40:26,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2024-11-09 06:40:26,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 984. [2024-11-09 06:40:26,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 909 states have (on average 1.283828382838284) internal successors, (1167), 910 states have internal predecessors, (1167), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:40:26,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1261 transitions. [2024-11-09 06:40:26,493 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1261 transitions. Word has length 90 [2024-11-09 06:40:26,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:26,494 INFO L471 AbstractCegarLoop]: Abstraction has 984 states and 1261 transitions. [2024-11-09 06:40:26,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:26,494 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1261 transitions. [2024-11-09 06:40:26,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:40:26,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:26,496 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:26,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Ended with exit code 0 [2024-11-09 06:40:26,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2024-11-09 06:40:26,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:40:26,897 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:26,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:26,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1136180821, now seen corresponding path program 1 times [2024-11-09 06:40:26,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:26,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725921006] [2024-11-09 06:40:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:26,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:40:26,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:26,898 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:26,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:27,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:40:27,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:27,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-09 06:40:27,220 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:40:27,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:40:27,221 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:27,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725921006] [2024-11-09 06:40:27,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725921006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:27,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:27,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:40:27,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702157497] [2024-11-09 06:40:27,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:27,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:40:27,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:27,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:40:27,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:40:27,223 INFO L87 Difference]: Start difference. First operand 984 states and 1261 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:28,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:28,047 INFO L93 Difference]: Finished difference Result 1528 states and 1967 transitions. [2024-11-09 06:40:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:40:28,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 90 [2024-11-09 06:40:28,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:28,051 INFO L225 Difference]: With dead ends: 1528 [2024-11-09 06:40:28,051 INFO L226 Difference]: Without dead ends: 984 [2024-11-09 06:40:28,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 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 06:40:28,053 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:28,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 317 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:40:28,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-09 06:40:28,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 984. [2024-11-09 06:40:28,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 909 states have (on average 1.2706270627062706) internal successors, (1155), 910 states have internal predecessors, (1155), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:40:28,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1249 transitions. [2024-11-09 06:40:28,143 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1249 transitions. Word has length 90 [2024-11-09 06:40:28,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:28,143 INFO L471 AbstractCegarLoop]: Abstraction has 984 states and 1249 transitions. [2024-11-09 06:40:28,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:40:28,144 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1249 transitions. [2024-11-09 06:40:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:40:28,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:28,145 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:28,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:28,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:28,346 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:28,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:28,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1953829271, now seen corresponding path program 1 times [2024-11-09 06:40:28,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:28,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851056597] [2024-11-09 06:40:28,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:28,347 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 06:40:28,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:28,348 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:28,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Waiting until timeout for monitored process [2024-11-09 06:40:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:28,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 06:40:28,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:29,561 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 109 treesize of output 82 [2024-11-09 06:40:29,922 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 109 treesize of output 82 [2024-11-09 06:40:30,394 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 109 treesize of output 82 [2024-11-09 06:40:30,618 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 109 treesize of output 82 [2024-11-09 06:40:30,685 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:30,685 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 152 treesize of output 62 [2024-11-09 06:40:30,791 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:40:30,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:40:31,230 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_733 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_152| (_ BitVec 64)) (v_ArrVal_734 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (let ((.cse0 (let ((.cse1 (select (store (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_733) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_734) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_152|)))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_152|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2024-11-09 06:40:31,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:31,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851056597] [2024-11-09 06:40:31,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851056597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:40:31,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1682904921] [2024-11-09 06:40:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:31,285 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:40:31,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:40:31,288 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:40:31,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-09 06:40:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:32,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 06:40:32,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:33,204 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 26 treesize of output 1 [2024-11-09 06:40:33,494 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 109 treesize of output 82 [2024-11-09 06:40:33,808 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 109 treesize of output 82 [2024-11-09 06:40:34,185 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 109 treesize of output 82 [2024-11-09 06:40:34,379 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 109 treesize of output 82 [2024-11-09 06:40:34,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:34,405 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 152 treesize of output 62 [2024-11-09 06:40:34,492 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-09 06:40:34,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:40:34,592 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_765 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_152| (_ BitVec 64))) (or (not (= (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_765) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_152|)))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_152|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2024-11-09 06:40:34,707 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_764 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_765 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_152| (_ BitVec 64))) (or (not (= (let ((.cse0 (let ((.cse1 (select (store (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_764) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_765) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_152|)))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_152|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2024-11-09 06:40:34,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1682904921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:40:34,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466582913] [2024-11-09 06:40:34,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:34,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:40:34,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:40:34,751 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:40:34,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 06:40:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:35,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:40:35,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:35,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2024-11-09 06:40:36,252 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 59 treesize of output 44 [2024-11-09 06:40:36,443 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 59 treesize of output 44 [2024-11-09 06:40:36,685 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 59 treesize of output 44 [2024-11-09 06:40:36,945 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 59 treesize of output 44 [2024-11-09 06:40:37,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:37,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 127 treesize of output 68 [2024-11-09 06:40:37,312 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:37,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 183 treesize of output 112 [2024-11-09 06:40:38,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:38,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 479 treesize of output 167 [2024-11-09 06:40:38,465 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 65 proven. 24 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-09 06:40:38,465 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:40:40,345 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_795 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_152| (_ BitVec 64))) (or (not (= (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_long_int_Array_0~0.base| v_ArrVal_795) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_152|)))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_152|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2024-11-09 06:40:40,454 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_794 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_795 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_152| (_ BitVec 64))) (or (not (= (let ((.cse0 (let ((.cse1 (select (store (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_794) |c_~#signed_long_int_Array_0~0.base| v_ArrVal_795) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_152|)))) (let ((.cse2 (let ((.cse3 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_152|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_152|)))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (fp.leq .cse2 .cse2)))) is different from false [2024-11-09 06:40:40,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466582913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:40:40,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:40:40,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 16] total 24 [2024-11-09 06:40:40,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811401531] [2024-11-09 06:40:40,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:40:40,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 06:40:40,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:40:40,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 06:40:40,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=975, Unknown=10, NotChecked=340, Total=1482 [2024-11-09 06:40:40,504 INFO L87 Difference]: Start difference. First operand 984 states and 1249 transitions. Second operand has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-09 06:40:48,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:48,302 INFO L93 Difference]: Finished difference Result 1654 states and 2101 transitions. [2024-11-09 06:40:48,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 06:40:48,303 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 90 [2024-11-09 06:40:48,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:48,307 INFO L225 Difference]: With dead ends: 1654 [2024-11-09 06:40:48,307 INFO L226 Difference]: Without dead ends: 1186 [2024-11-09 06:40:48,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 317 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=328, Invalid=2033, Unknown=11, NotChecked=490, Total=2862 [2024-11-09 06:40:48,309 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 383 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:48,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 806 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-09 06:40:48,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2024-11-09 06:40:48,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 954. [2024-11-09 06:40:48,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 879 states have (on average 1.2639362912400456) internal successors, (1111), 880 states have internal predecessors, (1111), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:40:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1205 transitions. [2024-11-09 06:40:48,384 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1205 transitions. Word has length 90 [2024-11-09 06:40:48,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:48,384 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1205 transitions. [2024-11-09 06:40:48,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.88) internal successors, (97), 24 states have internal predecessors, (97), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-09 06:40:48,384 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1205 transitions. [2024-11-09 06:40:48,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:40:48,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:48,386 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:48,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2024-11-09 06:40:48,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-09 06:40:48,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Ended with exit code 0 [2024-11-09 06:40:48,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:48,990 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:48,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:48,991 INFO L85 PathProgramCache]: Analyzing trace with hash 869471514, now seen corresponding path program 1 times [2024-11-09 06:40:48,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:40:48,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671491484] [2024-11-09 06:40:48,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:48,992 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 06:40:48,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:40:48,993 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:48,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:40:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:49,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 06:40:49,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:50,421 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 107 treesize of output 80 [2024-11-09 06:40:50,835 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 107 treesize of output 80 [2024-11-09 06:40:51,323 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 107 treesize of output 80 [2024-11-09 06:40:51,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:51,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 129 treesize of output 55 [2024-11-09 06:40:51,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:40:51,584 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 144 treesize of output 54 [2024-11-09 06:40:51,675 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 06:40:51,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:40:51,828 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_822 (Array (_ BitVec 32) (_ BitVec 32)))) (not (fp.lt (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_822) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from false [2024-11-09 06:40:51,854 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:40:51,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671491484] [2024-11-09 06:40:51,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671491484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:40:51,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [55684413] [2024-11-09 06:40:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:51,854 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:40:51,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:40:51,857 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:40:51,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-09 06:40:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:53,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 06:40:53,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:40:53,756 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 19 treesize of output 8 [2024-11-09 06:40:59,494 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 103 treesize of output 74 [2024-11-09 06:41:00,029 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 103 treesize of output 74 [2024-11-09 06:41:00,645 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 103 treesize of output 74 [2024-11-09 06:41:00,944 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 111 treesize of output 73 [2024-11-09 06:41:05,239 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 150 treesize of output 66 [2024-11-09 06:41:07,638 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 06:41:07,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:41:08,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [55684413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:41:08,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780260200] [2024-11-09 06:41:08,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:08,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:41:08,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:41:08,020 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:41:08,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 06:41:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:10,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:41:10,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:10,486 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:41:10,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 120 treesize of output 76 [2024-11-09 06:41:10,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:41:10,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 217 treesize of output 79 [2024-11-09 06:41:11,522 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-09 06:41:11,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:41:12,982 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:41:12,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780260200] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:41:12,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:41:12,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 13, 12] total 40 [2024-11-09 06:41:12,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446837380] [2024-11-09 06:41:12,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:41:12,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:41:12,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:41:12,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:41:12,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1610, Unknown=22, NotChecked=82, Total=1892 [2024-11-09 06:41:12,984 INFO L87 Difference]: Start difference. First operand 954 states and 1205 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:41:15,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:41:15,439 INFO L93 Difference]: Finished difference Result 1948 states and 2478 transitions. [2024-11-09 06:41:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:41:15,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 90 [2024-11-09 06:41:15,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:41:15,443 INFO L225 Difference]: With dead ends: 1948 [2024-11-09 06:41:15,443 INFO L226 Difference]: Without dead ends: 1240 [2024-11-09 06:41:15,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 368 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=211, Invalid=2123, Unknown=22, NotChecked=94, Total=2450 [2024-11-09 06:41:15,444 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 60 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:41:15,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 907 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:41:15,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2024-11-09 06:41:15,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 999. [2024-11-09 06:41:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 924 states have (on average 1.2705627705627707) internal successors, (1174), 925 states have internal predecessors, (1174), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:41:15,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1268 transitions. [2024-11-09 06:41:15,543 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1268 transitions. Word has length 90 [2024-11-09 06:41:15,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:41:15,544 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1268 transitions. [2024-11-09 06:41:15,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:41:15,544 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1268 transitions. [2024-11-09 06:41:15,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:41:15,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:41:15,546 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:41:15,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Ended with exit code 0 [2024-11-09 06:41:15,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-09 06:41:15,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2024-11-09 06:41:16,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:41:16,147 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:41:16,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:41:16,147 INFO L85 PathProgramCache]: Analyzing trace with hash 282665500, now seen corresponding path program 1 times [2024-11-09 06:41:16,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:41:16,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [894675814] [2024-11-09 06:41:16,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:16,148 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 06:41:16,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:41:16,149 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:41:16,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:41:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:16,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 06:41:16,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:17,544 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 107 treesize of output 80 [2024-11-09 06:41:17,970 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 107 treesize of output 80 [2024-11-09 06:41:18,443 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 107 treesize of output 80 [2024-11-09 06:41:18,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:41:18,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 119 treesize of output 75 [2024-11-09 06:41:22,868 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:41:22,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 164 treesize of output 62 [2024-11-09 06:41:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 06:41:22,964 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:41:23,354 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:41:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [894675814] [2024-11-09 06:41:23,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [894675814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:41:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1102179209] [2024-11-09 06:41:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:23,354 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:41:23,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:41:23,355 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:41:23,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2024-11-09 06:41:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:24,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 06:41:24,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:25,406 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 19 treesize of output 8 [2024-11-09 06:41:33,310 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 103 treesize of output 74 [2024-11-09 06:41:33,852 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 103 treesize of output 74 [2024-11-09 06:41:34,614 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 103 treesize of output 74 [2024-11-09 06:41:36,944 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 114 treesize of output 65 [2024-11-09 06:41:43,238 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 142 treesize of output 62 [2024-11-09 06:41:45,515 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 06:41:45,515 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:41:45,571 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_918 (Array (_ BitVec 32) (_ BitVec 32)))) (not (fp.lt (let ((.cse0 (let ((.cse1 (select (store |c_#memory_int| |c_~#signed_char_Array_0~0.base| v_ArrVal_918) |c_~#double_Array_0~0.base|))) (concat (select .cse1 (bvadd (_ bv4 32) |c_~#double_Array_0~0.offset|)) (select .cse1 |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from false [2024-11-09 06:41:45,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1102179209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:41:45,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640327252] [2024-11-09 06:41:45,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:45,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:41:45,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:41:45,600 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:41:45,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-09 06:41:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:45,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:41:45,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:46,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:41:46,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 78 treesize of output 34 [2024-11-09 06:41:46,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:41:46,140 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 93 treesize of output 33 [2024-11-09 06:41:46,283 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-09 06:41:46,283 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:41:46,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640327252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:41:46,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:41:46,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12, 13] total 28 [2024-11-09 06:41:46,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187909196] [2024-11-09 06:41:46,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:41:46,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:41:46,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:41:46,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:41:46,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=783, Unknown=19, NotChecked=58, Total=992 [2024-11-09 06:41:46,285 INFO L87 Difference]: Start difference. First operand 999 states and 1268 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:41:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:41:47,200 INFO L93 Difference]: Finished difference Result 1915 states and 2442 transitions. [2024-11-09 06:41:47,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:41:47,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 90 [2024-11-09 06:41:47,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:41:47,204 INFO L225 Difference]: With dead ends: 1915 [2024-11-09 06:41:47,204 INFO L226 Difference]: Without dead ends: 1162 [2024-11-09 06:41:47,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=136, Invalid=841, Unknown=19, NotChecked=60, Total=1056 [2024-11-09 06:41:47,206 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 48 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:41:47,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 450 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:41:47,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-11-09 06:41:47,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 954. [2024-11-09 06:41:47,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 879 states have (on average 1.2639362912400456) internal successors, (1111), 880 states have internal predecessors, (1111), 47 states have call successors, (47), 27 states have call predecessors, (47), 27 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 06:41:47,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1205 transitions. [2024-11-09 06:41:47,292 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1205 transitions. Word has length 90 [2024-11-09 06:41:47,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:41:47,293 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1205 transitions. [2024-11-09 06:41:47,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 06:41:47,293 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1205 transitions. [2024-11-09 06:41:47,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-09 06:41:47,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:41:47,294 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:41:47,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2024-11-09 06:41:47,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:41:47,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-09 06:41:47,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:41:47,895 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:41:47,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:41:47,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1124673192, now seen corresponding path program 1 times [2024-11-09 06:41:47,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:41:47,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111754936] [2024-11-09 06:41:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:47,896 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 06:41:47,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:41:47,900 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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 06:41:47,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/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)] Waiting until timeout for monitored process [2024-11-09 06:41:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:48,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:41:48,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:48,490 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 06:41:49,368 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 107 treesize of output 80 [2024-11-09 06:41:49,802 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 107 treesize of output 80 [2024-11-09 06:41:50,321 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 107 treesize of output 80 [2024-11-09 06:41:50,521 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:41:50,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 119 treesize of output 75 [2024-11-09 06:41:54,849 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:41:54,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 149 treesize of output 81 [2024-11-09 06:41:55,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:41:55,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 164 treesize of output 62 [2024-11-09 06:41:55,112 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-09 06:41:55,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:41:55,541 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:41:55,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111754936] [2024-11-09 06:41:55,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111754936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:41:55,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [643751819] [2024-11-09 06:41:55,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:55,545 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:41:55,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:41:55,547 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:41:55,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3d376a0-9fa2-435e-9948-85368ceb5c15/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2024-11-09 06:41:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:57,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:41:57,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:41:57,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-09 06:42:05,856 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 111 treesize of output 80 [2024-11-09 06:42:06,554 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 111 treesize of output 80 [2024-11-09 06:42:07,358 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 111 treesize of output 80 [2024-11-09 06:42:09,751 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 122 treesize of output 69 [2024-11-09 06:42:16,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 72