./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 f973a40b26aaa32bb1cc01afeff98c3363a14790c658d13c89361ba4409a62b2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:53:18,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:53:18,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:53:18,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:53:18,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:53:18,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:53:18,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:53:18,452 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:53:18,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:53:18,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:53:18,456 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:53:18,456 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:53:18,457 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:53:18,457 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:53:18,458 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:53:18,458 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:53:18,459 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:53:18,459 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:53:18,459 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:53:18,463 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:53:18,463 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:53:18,468 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:53:18,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:53:18,469 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:53:18,469 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:53:18,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:53:18,470 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:53:18,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:53:18,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:53:18,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:53:18,473 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:53:18,473 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:53:18,474 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:53:18,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:53:18,475 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:53:18,476 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:53:18,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:53:18,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:53:18,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:53:18,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:53:18,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:53:18,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:53:18,479 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:53:18,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:53:18,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:53:18,479 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:53:18,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:53:18,480 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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f973a40b26aaa32bb1cc01afeff98c3363a14790c658d13c89361ba4409a62b2 [2024-11-09 06:53:18,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:53:18,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:53:18,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:53:18,839 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:53:18,840 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:53:18,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.i Unable to find full path for "g++" [2024-11-09 06:53:20,876 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:53:21,105 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:53:21,105 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.i [2024-11-09 06:53:21,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/data/b13cb289a/e82292752ecf4c3a9b9660cee3c01735/FLAGeaf3d37be [2024-11-09 06:53:21,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/data/b13cb289a/e82292752ecf4c3a9b9660cee3c01735 [2024-11-09 06:53:21,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:53:21,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:53:21,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:53:21,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:53:21,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:53:21,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:21,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e1e4e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21, skipping insertion in model container [2024-11-09 06:53:21,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:21,510 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:53:21,721 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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.i[916,929] [2024-11-09 06:53:21,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:53:21,866 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:53:21,879 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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.i[916,929] [2024-11-09 06:53:21,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:53:21,994 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:53:21,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21 WrapperNode [2024-11-09 06:53:21,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:53:21,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:53:21,996 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:53:21,996 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:53:22,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,084 INFO L138 Inliner]: procedures = 29, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 519 [2024-11-09 06:53:22,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:53:22,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:53:22,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:53:22,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:53:22,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,142 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,153 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:53:22,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:53:22,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:53:22,159 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:53:22,160 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (1/1) ... [2024-11-09 06:53:22,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:53:22,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:53:22,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:53:22,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:53:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:53:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 06:53:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:53:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 06:53:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:53:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-09 06:53:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:53:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:53:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:53:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:53:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:53:22,441 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:53:22,444 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:53:23,292 INFO L? ?]: Removed 139 outVars from TransFormulas that were not future-live. [2024-11-09 06:53:23,293 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:53:23,935 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:53:23,935 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:53:23,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:53:23 BoogieIcfgContainer [2024-11-09 06:53:23,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:53:23,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:53:23,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:53:23,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:53:23,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:53:21" (1/3) ... [2024-11-09 06:53:23,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b28770e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:53:23, skipping insertion in model container [2024-11-09 06:53:23,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:21" (2/3) ... [2024-11-09 06:53:23,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b28770e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:53:23, skipping insertion in model container [2024-11-09 06:53:23,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:53:23" (3/3) ... [2024-11-09 06:53:23,949 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-83.i [2024-11-09 06:53:23,969 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:53:23,969 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:53:24,038 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:53:24,049 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;@4b30742b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:53:24,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:53:24,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:53:24,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 06:53:24,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:24,066 INFO L215 NwaCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:24,067 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:24,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:24,074 INFO L85 PathProgramCache]: Analyzing trace with hash 473449368, now seen corresponding path program 1 times [2024-11-09 06:53:24,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:53:24,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254977346] [2024-11-09 06:53:24,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:24,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:53:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:53:25,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [979500288] [2024-11-09 06:53:25,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:25,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:53:25,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:53:25,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:53:25,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:53:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:53:26,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:53:26,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:53:26,592 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:53:26,596 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:53:26,598 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:53:26,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:53:26,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 06:53:26,810 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:53:26,908 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:53:26,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:53:26 BoogieIcfgContainer [2024-11-09 06:53:26,912 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:53:26,913 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:53:26,913 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:53:26,913 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:53:26,914 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:53:23" (3/4) ... [2024-11-09 06:53:26,917 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:53:26,918 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:53:26,920 INFO L158 Benchmark]: Toolchain (without parser) took 5460.83ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 124.8MB in the beginning and 132.5MB in the end (delta: -7.7MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-09 06:53:26,920 INFO L158 Benchmark]: CDTParser took 1.91ms. Allocated memory is still 134.2MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:53:26,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 534.87ms. Allocated memory is still 163.6MB. Free memory was 124.8MB in the beginning and 108.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:53:26,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.11ms. Allocated memory is still 163.6MB. Free memory was 108.0MB in the beginning and 103.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:53:26,924 INFO L158 Benchmark]: Boogie Preprocessor took 72.20ms. Allocated memory is still 163.6MB. Free memory was 103.8MB in the beginning and 99.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:53:26,924 INFO L158 Benchmark]: RCFGBuilder took 1778.27ms. Allocated memory is still 163.6MB. Free memory was 99.6MB in the beginning and 109.5MB in the end (delta: -9.9MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2024-11-09 06:53:26,925 INFO L158 Benchmark]: TraceAbstraction took 2972.44ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 108.5MB in the beginning and 132.5MB in the end (delta: -24.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-09 06:53:26,925 INFO L158 Benchmark]: Witness Printer took 5.85ms. Allocated memory is still 197.1MB. Free memory is still 132.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:53:26,931 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.91ms. Allocated memory is still 134.2MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 534.87ms. Allocated memory is still 163.6MB. Free memory was 124.8MB in the beginning and 108.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.11ms. Allocated memory is still 163.6MB. Free memory was 108.0MB in the beginning and 103.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.20ms. Allocated memory is still 163.6MB. Free memory was 103.8MB in the beginning and 99.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1778.27ms. Allocated memory is still 163.6MB. Free memory was 99.6MB in the beginning and 109.5MB in the end (delta: -9.9MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2972.44ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 108.5MB in the beginning and 132.5MB in the end (delta: -24.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Witness Printer took 5.85ms. Allocated memory is still 197.1MB. Free memory is still 132.5MB. 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 bitwiseOr at line 58, overapproximation of someUnaryDOUBLEoperation at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61, overapproximation of someBinaryDOUBLEComparisonOperation at line 61. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[1] = { 0 }; [L25-L27] double double_Array_0[5] = { 24.8, 0.8, 127.625, 128.75, 1.5 }; [L28-L30] signed char signed_char_Array_0[2] = { 5, 64 }; [L31-L33] signed short int signed_short_int_Array_0[1] = { -128 }; [L34-L36] unsigned char unsigned_char_Array_0[1] = { 4 }; [L37-L39] unsigned short int unsigned_short_int_Array_0[2] = { 25, 128 }; [L40] unsigned short int last_1_unsigned_short_int_Array_0_1_ = 128; [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] CALL updateLastVariables() [L92] EXPR unsigned_short_int_Array_0[1] [L92] last_1_unsigned_short_int_Array_0_1_ = unsigned_short_int_Array_0[1] [L102] RET updateLastVariables() [L103] CALL updateVariables() [L73] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L74] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L74] 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_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L74] 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_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L75] 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_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L75] 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_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L76] double_Array_0[1] = __VERIFIER_nondet_double() [L77] EXPR double_Array_0[1] [L77] EXPR double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F [L77] EXPR (double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F ) [L77] EXPR double_Array_0[1] [L77] EXPR double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F [L77] EXPR double_Array_0[1] [L77] EXPR double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F [L77] EXPR (double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L77] CALL assume_abort_if_not((double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not((double_Array_0[1] >= -461168.6018427382800e+13F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 4611686.018427382800e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L78] double_Array_0[3] = __VERIFIER_nondet_double() [L79] EXPR double_Array_0[3] [L79] EXPR double_Array_0[3] >= -461168.6018427382800e+13F && double_Array_0[3] <= -1.0e-20F [L79] EXPR (double_Array_0[3] >= -461168.6018427382800e+13F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 4611686.018427382800e+12F && double_Array_0[3] >= 1.0e-20F ) [L79] EXPR double_Array_0[3] [L79] EXPR double_Array_0[3] <= 4611686.018427382800e+12F && double_Array_0[3] >= 1.0e-20F [L79] EXPR double_Array_0[3] [L79] EXPR double_Array_0[3] <= 4611686.018427382800e+12F && double_Array_0[3] >= 1.0e-20F [L79] EXPR (double_Array_0[3] >= -461168.6018427382800e+13F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 4611686.018427382800e+12F && double_Array_0[3] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L79] CALL assume_abort_if_not((double_Array_0[3] >= -461168.6018427382800e+13F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 4611686.018427382800e+12F && double_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((double_Array_0[3] >= -461168.6018427382800e+13F && double_Array_0[3] <= -1.0e-20F) || (double_Array_0[3] <= 4611686.018427382800e+12F && double_Array_0[3] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L80] signed_char_Array_0[0] = __VERIFIER_nondet_char() [L81] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L81] CALL assume_abort_if_not(signed_char_Array_0[0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(signed_char_Array_0[0] >= -127) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] EXPR signed_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L82] CALL assume_abort_if_not(signed_char_Array_0[0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(signed_char_Array_0[0] <= 126) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L83] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L84] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L84] CALL assume_abort_if_not(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_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L85] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 255) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 255) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L86] CALL assume_abort_if_not(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_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(unsigned_char_Array_0[0] != 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L87] unsigned_short_int_Array_0[0] = __VERIFIER_nondet_ushort() [L88] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L88] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(unsigned_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L89] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(unsigned_short_int_Array_0[0] <= 65534) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L103] RET updateVariables() [L104] CALL step() [L44] signed_short_int_Array_0[0] = 200 [L45] EXPR signed_char_Array_0[0] [L45] signed_char_Array_0[1] = signed_char_Array_0[0] [L46] EXPR double_Array_0[1] [L46] double_Array_0[4] = double_Array_0[1] [L47] EXPR unsigned_short_int_Array_0[0] [L47] EXPR unsigned_char_Array_0[0] [L47] signed long int stepLocal_0 = unsigned_short_int_Array_0[0] / unsigned_char_Array_0[0]; [L48] BOOL_unsigned_char_Array_0[0] [L48] COND TRUE BOOL_unsigned_char_Array_0[0] [L49] EXPR unsigned_short_int_Array_0[0] [L49] EXPR ((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]) [L49] EXPR unsigned_short_int_Array_0[0] [L49] EXPR ((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]) [L49] EXPR (((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) [L49] EXPR unsigned_short_int_Array_0[0] [L49] EXPR ((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]) [L49] EXPR unsigned_short_int_Array_0[0] [L49] EXPR ((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]) [L49] EXPR (((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) [L49] unsigned_short_int_Array_0[1] = (((((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))))) [L57] EXPR unsigned_short_int_Array_0[0] [L57] EXPR unsigned_short_int_Array_0[1] [L57] signed long int stepLocal_2 = unsigned_short_int_Array_0[0] + unsigned_short_int_Array_0[1]; [L58] EXPR signed_short_int_Array_0[0] [L58] EXPR signed_char_Array_0[1] [L58] EXPR signed_short_int_Array_0[0] ^ signed_char_Array_0[1] [L58] signed long int stepLocal_1 = signed_short_int_Array_0[0] ^ signed_char_Array_0[1]; [L59] EXPR signed_char_Array_0[1] [L59] COND TRUE signed_char_Array_0[1] <= stepLocal_2 [L60] EXPR unsigned_short_int_Array_0[1] [L60] COND FALSE !(unsigned_short_int_Array_0[1] == stepLocal_1) [L63] EXPR double_Array_0[3] [L63] double_Array_0[2] = double_Array_0[3] [L68] EXPR signed_char_Array_0[1] [L68] EXPR signed_char_Array_0[1] [L68] COND FALSE !(signed_char_Array_0[1] > signed_char_Array_0[1]) [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR BOOL_unsigned_char_Array_0[0] [L95] EXPR BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))))))) : (((unsigned_short_int_Array_0[0] / unsigned_char_Array_0[0]) >= (((((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) < ((~ last_1_unsigned_short_int_Array_0_1_))) ? ((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) : ((~ last_1_unsigned_short_int_Array_0_1_))))) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0]))) [L95] EXPR unsigned_short_int_Array_0[1] [L95] EXPR unsigned_short_int_Array_0[0] [L95] EXPR ((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]) [L95] EXPR unsigned_short_int_Array_0[0] [L95] EXPR ((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]) [L95] EXPR (((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) [L95] EXPR unsigned_short_int_Array_0[0] [L95] EXPR ((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]) [L95] EXPR unsigned_short_int_Array_0[0] [L95] EXPR ((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]) [L95] EXPR (((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) [L95] EXPR BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))))))) : (((unsigned_short_int_Array_0[0] / unsigned_char_Array_0[0]) >= (((((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) < ((~ last_1_unsigned_short_int_Array_0_1_))) ? ((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) : ((~ last_1_unsigned_short_int_Array_0_1_))))) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0]))) [L95] EXPR (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))))))) : (((unsigned_short_int_Array_0[0] / unsigned_char_Array_0[0]) >= (((((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) < ((~ last_1_unsigned_short_int_Array_0_1_))) ? ((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) : ((~ last_1_unsigned_short_int_Array_0_1_))))) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && ((signed_char_Array_0[1] <= (unsigned_short_int_Array_0[0] + unsigned_short_int_Array_0[1])) ? ((unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[1]))) [L95] EXPR signed_char_Array_0[1] [L95] EXPR unsigned_short_int_Array_0[0] [L95] EXPR unsigned_short_int_Array_0[1] [L95] EXPR (signed_char_Array_0[1] <= (unsigned_short_int_Array_0[0] + unsigned_short_int_Array_0[1])) ? ((unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[1])) [L95] EXPR unsigned_short_int_Array_0[1] [L95] EXPR signed_short_int_Array_0[0] [L95] EXPR signed_char_Array_0[1] [L95] EXPR signed_short_int_Array_0[0] ^ signed_char_Array_0[1] [L95] EXPR (unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3])) [L95] EXPR double_Array_0[2] [L95] EXPR double_Array_0[3] [L95] EXPR (unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3])) [L95] EXPR (signed_char_Array_0[1] <= (unsigned_short_int_Array_0[0] + unsigned_short_int_Array_0[1])) ? ((unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[1])) [L95] EXPR (BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))))))) : (((unsigned_short_int_Array_0[0] / unsigned_char_Array_0[0]) >= (((((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) < ((~ last_1_unsigned_short_int_Array_0_1_))) ? ((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) : ((~ last_1_unsigned_short_int_Array_0_1_))))) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && ((signed_char_Array_0[1] <= (unsigned_short_int_Array_0[0] + unsigned_short_int_Array_0[1])) ? ((unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[1]))) [L95] EXPR ((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))))))) : (((unsigned_short_int_Array_0[0] / unsigned_char_Array_0[0]) >= (((((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) < ((~ last_1_unsigned_short_int_Array_0_1_))) ? ((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) : ((~ last_1_unsigned_short_int_Array_0_1_))))) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && ((signed_char_Array_0[1] <= (unsigned_short_int_Array_0[0] + unsigned_short_int_Array_0[1])) ? ((unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[1])))) && ((signed_char_Array_0[1] > signed_char_Array_0[1]) ? (double_Array_0[0] == ((double) ((((double_Array_0[3]) < (double_Array_0[1])) ? (double_Array_0[3]) : (double_Array_0[1]))))) : 1) [L95] EXPR (((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))))))) : (((unsigned_short_int_Array_0[0] / unsigned_char_Array_0[0]) >= (((((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) < ((~ last_1_unsigned_short_int_Array_0_1_))) ? ((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) : ((~ last_1_unsigned_short_int_Array_0_1_))))) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && ((signed_char_Array_0[1] <= (unsigned_short_int_Array_0[0] + unsigned_short_int_Array_0[1])) ? ((unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[1])))) && ((signed_char_Array_0[1] > signed_char_Array_0[1]) ? (double_Array_0[0] == ((double) ((((double_Array_0[3]) < (double_Array_0[1])) ? (double_Array_0[3]) : (double_Array_0[1]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 200)) [L95] EXPR ((((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))))))) : (((unsigned_short_int_Array_0[0] / unsigned_char_Array_0[0]) >= (((((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) < ((~ last_1_unsigned_short_int_Array_0_1_))) ? ((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) : ((~ last_1_unsigned_short_int_Array_0_1_))))) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && ((signed_char_Array_0[1] <= (unsigned_short_int_Array_0[0] + unsigned_short_int_Array_0[1])) ? ((unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[1])))) && ((signed_char_Array_0[1] > signed_char_Array_0[1]) ? (double_Array_0[0] == ((double) ((((double_Array_0[3]) < (double_Array_0[1])) ? (double_Array_0[3]) : (double_Array_0[1]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 200))) && (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0])) [L95] EXPR (((((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))))))) : (((unsigned_short_int_Array_0[0] / unsigned_char_Array_0[0]) >= (((((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) < ((~ last_1_unsigned_short_int_Array_0_1_))) ? ((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) : ((~ last_1_unsigned_short_int_Array_0_1_))))) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && ((signed_char_Array_0[1] <= (unsigned_short_int_Array_0[0] + unsigned_short_int_Array_0[1])) ? ((unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[1])))) && ((signed_char_Array_0[1] > signed_char_Array_0[1]) ? (double_Array_0[0] == ((double) ((((double_Array_0[3]) < (double_Array_0[1])) ? (double_Array_0[3]) : (double_Array_0[1]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 200))) && (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0]))) && (double_Array_0[4] == ((double) double_Array_0[1])) [L95-L96] return (((((BOOL_unsigned_char_Array_0[0] ? (unsigned_short_int_Array_0[1] == ((unsigned short int) (((((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) < 0 ) ? -((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))) : ((((unsigned_short_int_Array_0[0]) < 0 ) ? -(unsigned_short_int_Array_0[0]) : (unsigned_short_int_Array_0[0]))))))) : (((unsigned_short_int_Array_0[0] / unsigned_char_Array_0[0]) >= (((((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) < ((~ last_1_unsigned_short_int_Array_0_1_))) ? ((last_1_unsigned_short_int_Array_0_1_ * signed_char_Array_0[1])) : ((~ last_1_unsigned_short_int_Array_0_1_))))) ? (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_char_Array_0[0])) : (unsigned_short_int_Array_0[1] == ((unsigned short int) unsigned_short_int_Array_0[0])))) && ((signed_char_Array_0[1] <= (unsigned_short_int_Array_0[0] + unsigned_short_int_Array_0[1])) ? ((unsigned_short_int_Array_0[1] == (signed_short_int_Array_0[0] ^ signed_char_Array_0[1])) ? (double_Array_0[2] == ((double) (((((double_Array_0[1]) < 0 ) ? -(double_Array_0[1]) : (double_Array_0[1]))) + double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[3]))) : (double_Array_0[2] == ((double) double_Array_0[1])))) && ((signed_char_Array_0[1] > signed_char_Array_0[1]) ? (double_Array_0[0] == ((double) ((((double_Array_0[3]) < (double_Array_0[1])) ? (double_Array_0[3]) : (double_Array_0[1]))))) : 1)) && (signed_short_int_Array_0[0] == ((signed short int) 200))) && (signed_char_Array_0[1] == ((signed char) signed_char_Array_0[0]))) && (double_Array_0[4] == ((double) double_Array_0[1])) ; [L105] RET, EXPR property() [L105] 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_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_unsigned_short_int_Array_0_1_=128, signed_char_Array_0={6:0}, signed_short_int_Array_0={7:0}, unsigned_char_Array_0={8:0}, unsigned_short_int_Array_0={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 1, TraceHistogramMax: 11, 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=31occurred 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: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 2 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 06:53:26,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 f973a40b26aaa32bb1cc01afeff98c3363a14790c658d13c89361ba4409a62b2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:53:29,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:53:29,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:53:29,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:53:29,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:53:29,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:53:29,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:53:29,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:53:29,593 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:53:29,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:53:29,595 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:53:29,596 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:53:29,596 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:53:29,596 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:53:29,597 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:53:29,599 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:53:29,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:53:29,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:53:29,600 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:53:29,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:53:29,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:53:29,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:53:29,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:53:29,605 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:53:29,606 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:53:29,606 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:53:29,606 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:53:29,606 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:53:29,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:53:29,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:53:29,607 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:53:29,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:53:29,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:53:29,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:53:29,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:53:29,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:53:29,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:53:29,610 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:53:29,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:53:29,612 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:53:29,612 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:53:29,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:53:29,612 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:53:29,613 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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f973a40b26aaa32bb1cc01afeff98c3363a14790c658d13c89361ba4409a62b2 [2024-11-09 06:53:30,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:53:30,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:53:30,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:53:30,073 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:53:30,074 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:53:30,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.i Unable to find full path for "g++" [2024-11-09 06:53:32,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:53:32,479 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:53:32,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.i [2024-11-09 06:53:32,494 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/data/644e6ea77/ead6d6e9e71a4aea80e7b4a6c4300f00/FLAGd6bee1efa [2024-11-09 06:53:32,513 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/data/644e6ea77/ead6d6e9e71a4aea80e7b4a6c4300f00 [2024-11-09 06:53:32,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:53:32,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:53:32,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:53:32,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:53:32,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:53:32,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:53:32" (1/1) ... [2024-11-09 06:53:32,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14dfb545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:32, skipping insertion in model container [2024-11-09 06:53:32,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:53:32" (1/1) ... [2024-11-09 06:53:32,567 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:53:32,838 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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.i[916,929] [2024-11-09 06:53:32,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:53:32,984 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:53:32,998 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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-83.i[916,929] [2024-11-09 06:53:33,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:53:33,144 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:53:33,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33 WrapperNode [2024-11-09 06:53:33,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:53:33,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:53:33,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:53:33,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:53:33,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,187 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,256 INFO L138 Inliner]: procedures = 33, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 497 [2024-11-09 06:53:33,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:53:33,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:53:33,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:53:33,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:53:33,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:53:33,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:53:33,359 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:53:33,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:53:33,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (1/1) ... [2024-11-09 06:53:33,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:53:33,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:53:33,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:53:33,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:53:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:53:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-09 06:53:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-09 06:53:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 06:53:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-09 06:53:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:53:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2024-11-09 06:53:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-09 06:53:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:53:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:53:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:53:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:53:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 06:53:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-09 06:53:33,661 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:53:33,664 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:53:35,654 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-09 06:53:35,654 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:53:35,683 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:53:35,683 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:53:35,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:53:35 BoogieIcfgContainer [2024-11-09 06:53:35,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:53:35,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:53:35,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:53:35,692 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:53:35,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:53:32" (1/3) ... [2024-11-09 06:53:35,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6d5879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:53:35, skipping insertion in model container [2024-11-09 06:53:35,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:53:33" (2/3) ... [2024-11-09 06:53:35,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6d5879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:53:35, skipping insertion in model container [2024-11-09 06:53:35,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:53:35" (3/3) ... [2024-11-09 06:53:35,699 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-83.i [2024-11-09 06:53:35,719 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:53:35,719 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:53:35,785 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:53:35,791 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;@56b9ff43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:53:35,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:53:35,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 89 states have (on average 1.449438202247191) internal successors, (129), 90 states have internal predecessors, (129), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:53:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:53:35,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:35,810 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:35,810 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:35,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:35,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1161883649, now seen corresponding path program 1 times [2024-11-09 06:53:35,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:35,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324254381] [2024-11-09 06:53:35,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:35,845 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 06:53:35,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:35,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:35,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:36,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:53:36,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-09 06:53:36,404 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:36,405 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:53:36,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324254381] [2024-11-09 06:53:36,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324254381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:36,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:36,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:53:36,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102325597] [2024-11-09 06:53:36,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:36,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:53:36,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:36,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:53:36,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:53:36,457 INFO L87 Difference]: Start difference. First operand has 103 states, 89 states have (on average 1.449438202247191) internal successors, (129), 90 states have internal predecessors, (129), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:53:36,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:36,507 INFO L93 Difference]: Finished difference Result 199 states and 307 transitions. [2024-11-09 06:53:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:53:36,510 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-09 06:53:36,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:36,523 INFO L225 Difference]: With dead ends: 199 [2024-11-09 06:53:36,523 INFO L226 Difference]: Without dead ends: 99 [2024-11-09 06:53:36,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:53:36,535 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:53:36,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:53:36,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-09 06:53:36,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-09 06:53:36,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 86 states have (on average 1.3488372093023255) internal successors, (116), 86 states have internal predecessors, (116), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:53:36,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2024-11-09 06:53:36,601 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 104 [2024-11-09 06:53:36,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:36,602 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2024-11-09 06:53:36,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:53:36,603 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2024-11-09 06:53:36,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:53:36,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:36,607 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:36,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:53:36,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:36,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:36,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:36,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1236453421, now seen corresponding path program 1 times [2024-11-09 06:53:36,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:36,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841828707] [2024-11-09 06:53:36,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:36,816 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 06:53:36,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:36,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:36,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:37,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:53:37,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:37,336 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:53:37,336 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:37,336 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:53:37,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841828707] [2024-11-09 06:53:37,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841828707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:37,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:37,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:53:37,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516004085] [2024-11-09 06:53:37,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:37,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:53:37,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:37,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:53:37,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:53:37,348 INFO L87 Difference]: Start difference. First operand 99 states and 138 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:53:37,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:37,489 INFO L93 Difference]: Finished difference Result 200 states and 280 transitions. [2024-11-09 06:53:37,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:53:37,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-09 06:53:37,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:37,491 INFO L225 Difference]: With dead ends: 200 [2024-11-09 06:53:37,492 INFO L226 Difference]: Without dead ends: 104 [2024-11-09 06:53:37,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 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 06:53:37,511 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:53:37,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 516 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:53:37,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-09 06:53:37,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-09 06:53:37,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 90 states have internal predecessors, (120), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:53:37,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 142 transitions. [2024-11-09 06:53:37,536 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 142 transitions. Word has length 104 [2024-11-09 06:53:37,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:37,538 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 142 transitions. [2024-11-09 06:53:37,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:53:37,538 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2024-11-09 06:53:37,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:53:37,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:37,543 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:37,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:37,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:37,744 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:37,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:37,745 INFO L85 PathProgramCache]: Analyzing trace with hash -556395051, now seen corresponding path program 1 times [2024-11-09 06:53:37,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:37,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102733006] [2024-11-09 06:53:37,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:37,747 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 06:53:37,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:37,751 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:37,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:38,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:53:38,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:38,256 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:53:38,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:38,259 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:53:38,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102733006] [2024-11-09 06:53:38,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102733006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:38,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:38,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:53:38,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947714232] [2024-11-09 06:53:38,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:38,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:53:38,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:38,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:53:38,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:53:38,265 INFO L87 Difference]: Start difference. First operand 103 states and 142 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:53:38,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:38,390 INFO L93 Difference]: Finished difference Result 206 states and 285 transitions. [2024-11-09 06:53:38,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:53:38,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-09 06:53:38,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:38,393 INFO L225 Difference]: With dead ends: 206 [2024-11-09 06:53:38,393 INFO L226 Difference]: Without dead ends: 106 [2024-11-09 06:53:38,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:53:38,395 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:53:38,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 635 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:53:38,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-09 06:53:38,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-09 06:53:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 92 states have (on average 1.326086956521739) internal successors, (122), 92 states have internal predecessors, (122), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:53:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2024-11-09 06:53:38,406 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 104 [2024-11-09 06:53:38,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:38,407 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2024-11-09 06:53:38,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:53:38,407 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2024-11-09 06:53:38,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:53:38,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:38,409 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:38,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 06:53:38,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:38,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:38,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:38,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1218612311, now seen corresponding path program 1 times [2024-11-09 06:53:38,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:38,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7157746] [2024-11-09 06:53:38,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:38,612 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 06:53:38,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:38,617 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:38,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:39,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:53:39,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:39,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-09 06:53:40,712 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 29 treesize of output 24 [2024-11-09 06:53:40,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:53:40,751 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 50 treesize of output 28 [2024-11-09 06:53:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:53:40,855 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:40,855 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:53:40,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7157746] [2024-11-09 06:53:40,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7157746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:40,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:40,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:53:40,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834836737] [2024-11-09 06:53:40,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:40,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:53:40,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:40,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:53:40,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:53:40,859 INFO L87 Difference]: Start difference. First operand 105 states and 144 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:53:43,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:43,594 INFO L93 Difference]: Finished difference Result 316 states and 437 transitions. [2024-11-09 06:53:43,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:53:43,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-09 06:53:43,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:43,597 INFO L225 Difference]: With dead ends: 316 [2024-11-09 06:53:43,597 INFO L226 Difference]: Without dead ends: 214 [2024-11-09 06:53:43,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:53:43,599 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 106 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:53:43,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 419 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 06:53:43,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-09 06:53:43,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 149. [2024-11-09 06:53:43,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 124 states have (on average 1.314516129032258) internal successors, (163), 124 states have internal predecessors, (163), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 06:53:43,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 207 transitions. [2024-11-09 06:53:43,637 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 207 transitions. Word has length 104 [2024-11-09 06:53:43,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:43,640 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 207 transitions. [2024-11-09 06:53:43,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:53:43,640 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 207 transitions. [2024-11-09 06:53:43,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:53:43,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:43,646 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:43,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:43,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:43,847 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:43,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:43,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1359160921, now seen corresponding path program 1 times [2024-11-09 06:53:43,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:43,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141662241] [2024-11-09 06:53:43,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:43,849 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 06:53:43,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:43,852 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:43,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 06:53:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:44,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:53:44,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:44,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-09 06:53:45,804 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 06:53:45,908 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 33 [2024-11-09 06:53:46,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:53:46,041 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 39 treesize of output 17 [2024-11-09 06:53:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:53:46,175 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:46,175 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:53:46,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141662241] [2024-11-09 06:53:46,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141662241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:46,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:46,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:53:46,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764162449] [2024-11-09 06:53:46,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:46,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:53:46,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:46,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:53:46,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:53:46,179 INFO L87 Difference]: Start difference. First operand 149 states and 207 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:53:47,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:53:52,328 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 06:53:55,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:55,600 INFO L93 Difference]: Finished difference Result 362 states and 496 transitions. [2024-11-09 06:53:55,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:53:55,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-09 06:53:55,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:55,603 INFO L225 Difference]: With dead ends: 362 [2024-11-09 06:53:55,603 INFO L226 Difference]: Without dead ends: 260 [2024-11-09 06:53:55,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:53:55,605 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 200 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:53:55,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 318 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 507 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2024-11-09 06:53:55,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-09 06:53:55,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 166. [2024-11-09 06:53:55,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 141 states have (on average 1.3191489361702127) internal successors, (186), 141 states have internal predecessors, (186), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 06:53:55,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 230 transitions. [2024-11-09 06:53:55,635 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 230 transitions. Word has length 104 [2024-11-09 06:53:55,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:55,636 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 230 transitions. [2024-11-09 06:53:55,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:53:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 230 transitions. [2024-11-09 06:53:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:53:55,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:55,638 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:53:55,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-09 06:53:55,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:55,839 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:55,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:55,839 INFO L85 PathProgramCache]: Analyzing trace with hash -229186981, now seen corresponding path program 1 times [2024-11-09 06:53:55,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:55,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [363816242] [2024-11-09 06:53:55,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:55,840 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 06:53:55,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:55,844 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:53:55,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 06:53:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:56,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:53:56,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:57,318 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 06:53:57,714 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 06:53:57,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2024-11-09 06:53:58,014 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 20 [2024-11-09 06:53:58,140 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 40 [2024-11-09 06:53:58,344 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:53:58,345 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 84 treesize of output 44 [2024-11-09 06:53:58,431 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:53:58,432 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:58,432 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:53:58,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [363816242] [2024-11-09 06:53:58,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [363816242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:58,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:58,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:53:58,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566276519] [2024-11-09 06:53:58,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:58,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:53:58,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:58,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:53:58,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:53:58,437 INFO L87 Difference]: Start difference. First operand 166 states and 230 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:01,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:54:01,919 INFO L93 Difference]: Finished difference Result 390 states and 534 transitions. [2024-11-09 06:54:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:54:01,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-09 06:54:01,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:54:01,923 INFO L225 Difference]: With dead ends: 390 [2024-11-09 06:54:01,924 INFO L226 Difference]: Without dead ends: 288 [2024-11-09 06:54:01,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-11-09 06:54:01,925 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 496 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:54:01,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 427 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 612 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 06:54:01,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-09 06:54:01,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 193. [2024-11-09 06:54:01,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 168 states have (on average 1.3392857142857142) internal successors, (225), 168 states have internal predecessors, (225), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 06:54:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 269 transitions. [2024-11-09 06:54:01,946 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 269 transitions. Word has length 104 [2024-11-09 06:54:01,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:54:01,946 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 269 transitions. [2024-11-09 06:54:01,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 269 transitions. [2024-11-09 06:54:01,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:54:01,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:54:01,948 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:54:01,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-09 06:54:02,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:02,149 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:54:02,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:54:02,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1250255335, now seen corresponding path program 1 times [2024-11-09 06:54:02,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:54:02,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326447711] [2024-11-09 06:54:02,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:02,150 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 06:54:02,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:54:02,152 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:02,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:02,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:54:02,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:03,483 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 06:54:03,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:54:04,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 14 [2024-11-09 06:54:04,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:54:04,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:54:04,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-09 06:54:04,664 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-09 06:54:04,664 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:04,984 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:54:04,984 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:54:04,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326447711] [2024-11-09 06:54:04,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326447711] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:54:04,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:54:04,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 13 [2024-11-09 06:54:04,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173680100] [2024-11-09 06:54:04,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:54:04,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:54:04,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:54:04,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:54:04,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:54:04,986 INFO L87 Difference]: Start difference. First operand 193 states and 269 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:05,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:54:05,121 INFO L93 Difference]: Finished difference Result 313 states and 438 transitions. [2024-11-09 06:54:05,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:54:05,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-09 06:54:05,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:54:05,127 INFO L225 Difference]: With dead ends: 313 [2024-11-09 06:54:05,127 INFO L226 Difference]: Without dead ends: 195 [2024-11-09 06:54:05,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:54:05,128 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:54:05,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 267 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:54:05,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-09 06:54:05,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2024-11-09 06:54:05,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 170 states have (on average 1.3352941176470587) internal successors, (227), 170 states have internal predecessors, (227), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 06:54:05,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 271 transitions. [2024-11-09 06:54:05,146 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 271 transitions. Word has length 104 [2024-11-09 06:54:05,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:54:05,146 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 271 transitions. [2024-11-09 06:54:05,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:05,147 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 271 transitions. [2024-11-09 06:54:05,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 06:54:05,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:54:05,148 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:54:05,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:05,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:05,349 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:54:05,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:54:05,350 INFO L85 PathProgramCache]: Analyzing trace with hash -363200487, now seen corresponding path program 1 times [2024-11-09 06:54:05,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:54:05,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541678614] [2024-11-09 06:54:05,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:05,351 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 06:54:05,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:54:05,352 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:05,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:05,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:54:05,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:06,598 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 06:54:07,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:54:07,358 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 28 treesize of output 16 [2024-11-09 06:54:07,788 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-09 06:54:07,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:08,014 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:54:08,014 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:54:08,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541678614] [2024-11-09 06:54:08,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541678614] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:54:08,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:54:08,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-09 06:54:08,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389497394] [2024-11-09 06:54:08,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:54:08,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:54:08,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:54:08,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:54:08,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-09 06:54:08,016 INFO L87 Difference]: Start difference. First operand 195 states and 271 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:08,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:54:08,210 INFO L93 Difference]: Finished difference Result 335 states and 468 transitions. [2024-11-09 06:54:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:54:08,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 104 [2024-11-09 06:54:08,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:54:08,213 INFO L225 Difference]: With dead ends: 335 [2024-11-09 06:54:08,213 INFO L226 Difference]: Without dead ends: 206 [2024-11-09 06:54:08,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:54:08,214 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 25 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:54:08,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 419 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:54:08,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-09 06:54:08,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 196. [2024-11-09 06:54:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 171 states have (on average 1.327485380116959) internal successors, (227), 171 states have internal predecessors, (227), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 06:54:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 271 transitions. [2024-11-09 06:54:08,230 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 271 transitions. Word has length 104 [2024-11-09 06:54:08,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:54:08,231 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 271 transitions. [2024-11-09 06:54:08,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:08,231 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 271 transitions. [2024-11-09 06:54:08,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 06:54:08,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:54:08,233 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:54:08,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:08,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:08,434 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:54:08,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:54:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash 479105694, now seen corresponding path program 1 times [2024-11-09 06:54:08,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:54:08,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376863634] [2024-11-09 06:54:08,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:08,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:54:08,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:54:08,435 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:08,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:08,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 06:54:08,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:09,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-09 06:54:09,928 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 06:54:10,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:54:10,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 14 [2024-11-09 06:54:11,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2024-11-09 06:54:11,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2024-11-09 06:54:11,618 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 55 treesize of output 35 [2024-11-09 06:54:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-09 06:54:11,766 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:19,544 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:54:19,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376863634] [2024-11-09 06:54:19,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [376863634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:54:19,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [540058440] [2024-11-09 06:54:19,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:19,545 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:54:19,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:54:19,548 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:54:19,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-09 06:54:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:20,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:54:20,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:20,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-09 06:54:21,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2024-11-09 06:54:21,795 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:54:21,795 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:54:21,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [540058440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:54:21,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:54:21,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 18 [2024-11-09 06:54:21,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551736170] [2024-11-09 06:54:21,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:54:21,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:54:21,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:54:21,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:54:21,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=549, Unknown=44, NotChecked=0, Total=702 [2024-11-09 06:54:21,798 INFO L87 Difference]: Start difference. First operand 196 states and 271 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:54:23,698 INFO L93 Difference]: Finished difference Result 385 states and 532 transitions. [2024-11-09 06:54:23,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:54:23,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 105 [2024-11-09 06:54:23,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:54:23,703 INFO L225 Difference]: With dead ends: 385 [2024-11-09 06:54:23,703 INFO L226 Difference]: Without dead ends: 264 [2024-11-09 06:54:23,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=118, Invalid=650, Unknown=44, NotChecked=0, Total=812 [2024-11-09 06:54:23,704 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 82 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:54:23,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 495 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 06:54:23,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-09 06:54:23,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 216. [2024-11-09 06:54:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 191 states have (on average 1.356020942408377) internal successors, (259), 191 states have internal predecessors, (259), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 06:54:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 303 transitions. [2024-11-09 06:54:23,731 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 303 transitions. Word has length 105 [2024-11-09 06:54:23,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:54:23,731 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 303 transitions. [2024-11-09 06:54:23,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:23,734 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 303 transitions. [2024-11-09 06:54:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 06:54:23,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:54:23,736 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:54:23,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2024-11-09 06:54:23,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:24,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:24,137 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:54:24,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:54:24,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1640722658, now seen corresponding path program 1 times [2024-11-09 06:54:24,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:54:24,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [528174354] [2024-11-09 06:54:24,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:24,138 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 06:54:24,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:54:24,139 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:24,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:24,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:54:24,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:24,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-09 06:54:26,173 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 06:54:27,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 14 [2024-11-09 06:54:27,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 14 [2024-11-09 06:54:28,017 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 64 treesize of output 40 [2024-11-09 06:54:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 90 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-09 06:54:28,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:28,920 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:54:28,921 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:54:28,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [528174354] [2024-11-09 06:54:28,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [528174354] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:54:28,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:54:28,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-09 06:54:28,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430610958] [2024-11-09 06:54:28,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:54:28,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:54:28,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:54:28,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:54:28,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:54:28,923 INFO L87 Difference]: Start difference. First operand 216 states and 303 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:32,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:54:32,010 INFO L93 Difference]: Finished difference Result 347 states and 487 transitions. [2024-11-09 06:54:32,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:54:32,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 105 [2024-11-09 06:54:32,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:54:32,015 INFO L225 Difference]: With dead ends: 347 [2024-11-09 06:54:32,015 INFO L226 Difference]: Without dead ends: 214 [2024-11-09 06:54:32,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:54:32,016 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 11 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:54:32,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 380 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 06:54:32,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-09 06:54:32,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 213. [2024-11-09 06:54:32,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 188 states have (on average 1.351063829787234) internal successors, (254), 188 states have internal predecessors, (254), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 06:54:32,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 298 transitions. [2024-11-09 06:54:32,032 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 298 transitions. Word has length 105 [2024-11-09 06:54:32,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:54:32,032 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 298 transitions. [2024-11-09 06:54:32,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 298 transitions. [2024-11-09 06:54:32,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 06:54:32,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:54:32,034 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:54:32,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:32,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:32,235 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:54:32,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:54:32,235 INFO L85 PathProgramCache]: Analyzing trace with hash -159423714, now seen corresponding path program 1 times [2024-11-09 06:54:32,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:54:32,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183701994] [2024-11-09 06:54:32,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:32,236 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 06:54:32,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:54:32,237 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:32,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 06:54:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:32,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 06:54:32,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:32,878 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 06:54:33,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:54:33,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:54:34,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:54:34,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:54:35,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 06:54:35,876 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 39 treesize of output 27 [2024-11-09 06:54:35,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 19 [2024-11-09 06:54:36,101 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 32 treesize of output 28 [2024-11-09 06:54:36,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-11-09 06:54:36,357 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 132 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-09 06:54:36,357 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:41,898 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:54:41,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183701994] [2024-11-09 06:54:41,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183701994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:54:41,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [837291771] [2024-11-09 06:54:41,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:41,899 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:54:41,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:54:41,901 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:54:41,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-09 06:54:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:42,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 06:54:42,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:42,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:54:43,362 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 06:54:43,692 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 06:54:43,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:54:44,365 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 06:54:44,922 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 06:54:45,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2024-11-09 06:54:45,522 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 06:54:45,679 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 06:54:45,852 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 06:54:45,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:48,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [837291771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:54:48,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80779564] [2024-11-09 06:54:48,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:48,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:54:48,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:54:48,538 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:54:48,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 06:54:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:48,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:54:48,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:50,211 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 06:54:50,246 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 06:54:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:54:50,279 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:54:50,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80779564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:54:50,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:54:50,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12, 8] total 18 [2024-11-09 06:54:50,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470301721] [2024-11-09 06:54:50,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:54:50,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:54:50,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:54:50,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:54:50,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=483, Unknown=85, NotChecked=0, Total=702 [2024-11-09 06:54:50,281 INFO L87 Difference]: Start difference. First operand 213 states and 298 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:53,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:54:53,340 INFO L93 Difference]: Finished difference Result 368 states and 509 transitions. [2024-11-09 06:54:53,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:54:53,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 106 [2024-11-09 06:54:53,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:54:53,344 INFO L225 Difference]: With dead ends: 368 [2024-11-09 06:54:53,344 INFO L226 Difference]: Without dead ends: 248 [2024-11-09 06:54:53,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 351 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=149, Invalid=520, Unknown=87, NotChecked=0, Total=756 [2024-11-09 06:54:53,345 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 256 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:54:53,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 281 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 06:54:53,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-09 06:54:53,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 213. [2024-11-09 06:54:53,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 188 states have (on average 1.3351063829787233) internal successors, (251), 188 states have internal predecessors, (251), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 06:54:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 295 transitions. [2024-11-09 06:54:53,363 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 295 transitions. Word has length 106 [2024-11-09 06:54:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:54:53,364 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 295 transitions. [2024-11-09 06:54:53,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:54:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 295 transitions. [2024-11-09 06:54:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 06:54:53,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:54:53,365 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:54:53,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 06:54:53,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:54:53,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-09 06:54:53,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:54:53,966 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:54:53,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:54:53,967 INFO L85 PathProgramCache]: Analyzing trace with hash 656666246, now seen corresponding path program 1 times [2024-11-09 06:54:53,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:54:53,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393775345] [2024-11-09 06:54:53,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:53,967 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 06:54:53,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:54:53,969 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:53,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 06:54:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:54,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 06:54:54,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:55,104 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 06:54:56,203 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:54:56,204 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 133 treesize of output 79 [2024-11-09 06:54:59,119 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 141 treesize of output 110 [2024-11-09 06:55:00,033 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 141 treesize of output 110 [2024-11-09 06:55:03,603 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 141 treesize of output 110 [2024-11-09 06:55:04,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 122 [2024-11-09 06:55:04,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:04,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 122 treesize of output 105 [2024-11-09 06:55:10,922 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 161 treesize of output 126 [2024-11-09 06:55:17,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:17,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 230 treesize of output 152 [2024-11-09 06:55:18,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:55:18,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 438 treesize of output 150 [2024-11-09 06:55:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 12 proven. 152 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 06:55:18,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:20,158 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:20,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393775345] [2024-11-09 06:55:20,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393775345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:20,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1717712257] [2024-11-09 06:55:20,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:20,158 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:55:20,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:55:20,160 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:55:20,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 06:55:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:22,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 06:55:22,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:23,170 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 06:55:33,316 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 127 treesize of output 63 [2024-11-09 06:55:34,114 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 113 treesize of output 82 [2024-11-09 06:55:35,153 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 113 treesize of output 82 [2024-11-09 06:55:42,821 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 113 treesize of output 82 [2024-11-09 06:55:43,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 90 [2024-11-09 06:55:43,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 90 treesize of output 79 [2024-11-09 06:55:52,303 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 88 [2024-11-09 06:55:58,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 164 treesize of output 128 [2024-11-09 06:56:04,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 113 [2024-11-09 06:56:04,090 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-09 06:56:04,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:04,366 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_499 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_98| (_ BitVec 64))) (let ((.cse1 (let ((.cse2 (let ((.cse3 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_499) |c_~#double_Array_0~0.base|))) (concat (select .cse3 (bvadd (_ bv12 32) |c_~#double_Array_0~0.offset|)) (select .cse3 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|)))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (or (fp.eq (let ((.cse0 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_98|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) .cse1) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_98|)) .cse1))))) is different from false [2024-11-09 06:56:04,559 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_497 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_499 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_105| (_ BitVec 64)) (v_ArrVal_496 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_98| (_ BitVec 64))) (let ((.cse1 (let ((.cse2 (let ((.cse3 (select (store (let ((.cse4 (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_496) |c_~#signed_char_Array_0~0.base| v_ArrVal_497))) (store .cse4 |c_~#double_Array_0~0.base| (store (store (select .cse4 |c_~#double_Array_0~0.base|) (bvadd (_ bv32 32) |c_~#double_Array_0~0.offset|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_105|)) (bvadd (_ bv36 32) |c_~#double_Array_0~0.offset|) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_105|)))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_499) |c_~#double_Array_0~0.base|))) (concat (select .cse3 (bvadd (_ bv12 32) |c_~#double_Array_0~0.offset|)) (select .cse3 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|)))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (or (fp.eq (let ((.cse0 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_98|)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) .cse1) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_98|)) .cse1))))) is different from false [2024-11-09 06:56:04,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1717712257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:04,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761810337] [2024-11-09 06:56:04,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:04,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:56:04,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:56:04,623 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:56:04,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 06:56:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:05,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 06:56:05,463 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:07,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:07,106 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 143 treesize of output 59 [2024-11-09 06:56:07,646 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 121 treesize of output 94 [2024-11-09 06:56:08,323 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 121 treesize of output 94 [2024-11-09 06:56:15,386 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 121 treesize of output 94 [2024-11-09 06:56:16,017 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 211 treesize of output 165 [2024-11-09 06:56:16,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 19 [2024-11-09 06:56:16,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:16,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 151 treesize of output 100 [2024-11-09 06:56:20,622 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 213 treesize of output 171 [2024-11-09 06:56:23,195 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:23,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 282 treesize of output 168 [2024-11-09 06:56:28,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:56:28,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 490 treesize of output 168 [2024-11-09 06:56:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-09 06:56:28,705 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:28,956 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_98| (_ BitVec 64)) (v_ArrVal_537 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_537) |c_~#double_Array_0~0.base|))) (concat (select .cse3 (bvadd (_ bv12 32) |c_~#double_Array_0~0.offset|)) (select .cse3 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|)))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (or (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_98|)) .cse0)) (fp.eq (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_98|)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))) .cse0)))) is different from false [2024-11-09 06:56:29,159 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_112| (_ BitVec 64)) (|~#signed_char_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_534 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_98| (_ BitVec 64)) (v_ArrVal_537 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (let ((.cse9 (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_534))) (store .cse9 |c_~#signed_char_Array_0~0.base| (let ((.cse10 (select .cse9 |c_~#signed_char_Array_0~0.base|))) (store .cse10 (bvadd (_ bv1 32) |~#signed_char_Array_0~0.offset|) ((_ sign_extend 24) ((_ extract 7 0) (select .cse10 |~#signed_char_Array_0~0.offset|))))))))) (let ((.cse3 (bvadd (_ bv12 32) |c_~#double_Array_0~0.offset|)) (.cse4 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|)) (.cse2 (select .cse8 |c_~#double_Array_0~0.base|))) (let ((.cse0 (let ((.cse6 (let ((.cse7 (select (store (store .cse8 |c_~#double_Array_0~0.base| (store (store .cse2 (bvadd (_ bv32 32) |c_~#double_Array_0~0.offset|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_112|)) (bvadd (_ bv36 32) |c_~#double_Array_0~0.offset|) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_112|))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_537) |c_~#double_Array_0~0.base|))) (concat (select .cse7 .cse3) (select .cse7 .cse4))))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6))))) (or (not (= .cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_98|)))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_112|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_112|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_112|)) (let ((.cse1 (concat (select .cse2 .cse3) (select .cse2 .cse4)))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (fp.eq (let ((.cse5 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_98|)))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))) .cse0)))))) is different from false [2024-11-09 06:56:29,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761810337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:29,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:56:29,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 15] total 29 [2024-11-09 06:56:29,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198325397] [2024-11-09 06:56:29,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:29,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-09 06:56:29,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:29,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-09 06:56:29,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1009, Unknown=51, NotChecked=276, Total=1482 [2024-11-09 06:56:29,416 INFO L87 Difference]: Start difference. First operand 213 states and 295 transitions. Second operand has 30 states, 30 states have (on average 4.8) internal successors, (144), 29 states have internal predecessors, (144), 8 states have call successors, (30), 8 states have call predecessors, (30), 9 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) [2024-11-09 06:56:33,424 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 06:56:35,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:37,438 WARN L539 Checker$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 06:56:39,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:41,450 WARN L539 Checker$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 06:56:43,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:56:57,834 WARN L539 Checker$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 06:56:59,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:01,853 WARN L539 Checker$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 06:57:03,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:05,867 WARN L539 Checker$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 06:57:07,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:22,357 WARN L539 Checker$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 06:57:24,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:26,380 WARN L539 Checker$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 06:57:28,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:30,398 WARN L539 Checker$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 06:57:32,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:46,678 WARN L539 Checker$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 06:57:48,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:50,692 WARN L539 Checker$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 06:57:52,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:54,708 WARN L539 Checker$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 06:57:56,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:57:58,724 WARN L539 Checker$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 06:58:00,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:02,731 WARN L539 Checker$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 06:58:04,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:06,737 WARN L539 Checker$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 06:58:08,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:10,782 WARN L539 Checker$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 06:58:12,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:14,805 WARN L539 Checker$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 06:58:16,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:18,813 WARN L539 Checker$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 06:58:20,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:23,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:25,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:27,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:29,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:45,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:47,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:49,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:51,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:53,421 WARN L539 Checker$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 06:58:55,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:58:57,429 WARN L539 Checker$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 06:58:59,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:01,443 WARN L539 Checker$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 06:59:03,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:05,452 WARN L539 Checker$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 06:59:07,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:09,465 WARN L539 Checker$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 06:59:11,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:13,476 WARN L539 Checker$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 06:59:15,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:17,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:19,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:21,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:23,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:25,650 WARN L539 Checker$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 06:59:27,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:29,666 WARN L539 Checker$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 06:59:31,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:33,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:35,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:37,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:39,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:41,769 WARN L539 Checker$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 06:59:43,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:45,775 WARN L539 Checker$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 06:59:47,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:49,791 WARN L539 Checker$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 06:59:51,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:59:53,796 WARN L539 Checker$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 06:59:55,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:08,106 WARN L539 Checker$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 07:00:10,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:12,118 WARN L539 Checker$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 07:00:14,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:16,247 WARN L539 Checker$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 07:00:18,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:20,263 WARN L539 Checker$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 07:00:22,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:36,635 WARN L539 Checker$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 07:00:38,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:40,642 WARN L539 Checker$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 07:00:42,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:44,726 WARN L539 Checker$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 07:00:46,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:48,742 WARN L539 Checker$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 07:00:50,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:52,915 WARN L539 Checker$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 07:00:54,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:00:56,933 WARN L539 Checker$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 07:00:58,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:01,001 WARN L539 Checker$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 07:01:03,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:05,018 WARN L539 Checker$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 07:01:07,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:09,322 WARN L539 Checker$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 07:01:11,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:13,342 WARN L539 Checker$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 07:01:15,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:17,412 WARN L539 Checker$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 07:01:19,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:21,429 WARN L539 Checker$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 07:01:23,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:25,484 WARN L539 Checker$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 07:01:27,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:29,503 WARN L539 Checker$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 07:01:31,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:33,757 WARN L539 Checker$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 07:01:35,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:37,772 WARN L539 Checker$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 07:01:39,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:41,914 WARN L539 Checker$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 07:01:43,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:45,933 WARN L539 Checker$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 07:01:47,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:50,002 WARN L539 Checker$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 07:01:52,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:54,020 WARN L539 Checker$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 07:01:56,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:01:58,110 WARN L539 Checker$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 07:02:00,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:02,125 WARN L539 Checker$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 07:02:04,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:16,556 WARN L539 Checker$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 07:02:18,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:20,572 WARN L539 Checker$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 07:02:22,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:24,656 WARN L539 Checker$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 07:02:26,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:28,669 WARN L539 Checker$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 07:02:30,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:32,755 WARN L539 Checker$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 07:02:34,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:36,775 WARN L539 Checker$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 07:02:38,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:40,845 WARN L539 Checker$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 07:02:42,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:44,859 WARN L539 Checker$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 07:02:46,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:49,025 WARN L539 Checker$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 07:02:51,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:53,044 WARN L539 Checker$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 07:02:55,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:02:57,098 WARN L539 Checker$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 07:02:59,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:01,113 WARN L539 Checker$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 07:03:03,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:05,201 WARN L539 Checker$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 07:03:07,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:09,218 WARN L539 Checker$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 07:03:11,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:13,365 WARN L539 Checker$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 07:03:15,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:17,380 WARN L539 Checker$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 07:03:19,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:21,463 WARN L539 Checker$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 07:03:23,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:25,484 WARN L539 Checker$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 07:03:27,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:29,571 WARN L539 Checker$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 07:03:31,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:33,586 WARN L539 Checker$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 07:03:35,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:37,737 WARN L539 Checker$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 07:03:39,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:41,751 WARN L539 Checker$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 07:03:43,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:45,826 WARN L539 Checker$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 07:03:47,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:49,841 WARN L539 Checker$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 07:03:51,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:53,928 WARN L539 Checker$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 07:03:55,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:03:57,951 WARN L539 Checker$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 07:03:59,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:02,102 WARN L539 Checker$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 07:04:04,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:06,120 WARN L539 Checker$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 07:04:08,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:10,140 WARN L539 Checker$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 07:04:12,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:14,145 WARN L539 Checker$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 07:04:16,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:20,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:26,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:04:45,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:45,301 INFO L93 Difference]: Finished difference Result 609 states and 829 transitions. [2024-11-09 07:04:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 07:04:45,303 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.8) internal successors, (144), 29 states have internal predecessors, (144), 8 states have call successors, (30), 8 states have call predecessors, (30), 9 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) Word has length 106 [2024-11-09 07:04:45,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:45,306 INFO L225 Difference]: With dead ends: 609 [2024-11-09 07:04:45,306 INFO L226 Difference]: Without dead ends: 489 [2024-11-09 07:04:45,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 370 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 161.8s TimeCoverageRelationStatistics Valid=422, Invalid=2154, Unknown=92, NotChecked=412, Total=3080 [2024-11-09 07:04:45,308 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 1503 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 110 mSolverCounterUnsat, 190 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 404.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 190 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 405.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:45,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 791 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1757 Invalid, 190 Unknown, 0 Unchecked, 405.0s Time] [2024-11-09 07:04:45,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-09 07:04:45,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 358. [2024-11-09 07:04:45,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 311 states have (on average 1.315112540192926) internal successors, (409), 311 states have internal predecessors, (409), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 07:04:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 489 transitions. [2024-11-09 07:04:45,354 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 489 transitions. Word has length 106 [2024-11-09 07:04:45,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:45,355 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 489 transitions. [2024-11-09 07:04:45,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.8) internal successors, (144), 29 states have internal predecessors, (144), 8 states have call successors, (30), 8 states have call predecessors, (30), 9 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) [2024-11-09 07:04:45,355 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 489 transitions. [2024-11-09 07:04:45,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 07:04:45,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:45,357 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:45,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-09 07:04:45,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:04:45,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-09 07:04:45,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:45,958 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:04:45,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:45,958 INFO L85 PathProgramCache]: Analyzing trace with hash -114067320, now seen corresponding path program 1 times [2024-11-09 07:04:45,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:04:45,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385075556] [2024-11-09 07:04:45,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:45,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:04:45,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:04:45,960 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:04:45,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-09 07:04:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:46,305 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:04:46,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:46,334 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-09 07:04:46,334 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:04:46,334 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:04:46,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385075556] [2024-11-09 07:04:46,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385075556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:46,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:46,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:04:46,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699880952] [2024-11-09 07:04:46,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:46,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:04:46,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:04:46,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:04:46,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:04:46,337 INFO L87 Difference]: Start difference. First operand 358 states and 489 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:04:46,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:46,559 INFO L93 Difference]: Finished difference Result 640 states and 876 transitions. [2024-11-09 07:04:46,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:04:46,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-09 07:04:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:46,567 INFO L225 Difference]: With dead ends: 640 [2024-11-09 07:04:46,567 INFO L226 Difference]: Without dead ends: 358 [2024-11-09 07:04:46,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 103 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 07:04:46,569 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:46,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:04:46,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-09 07:04:46,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2024-11-09 07:04:46,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 311 states have (on average 1.3086816720257235) internal successors, (407), 311 states have internal predecessors, (407), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 07:04:46,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 487 transitions. [2024-11-09 07:04:46,618 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 487 transitions. Word has length 106 [2024-11-09 07:04:46,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:46,618 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 487 transitions. [2024-11-09 07:04:46,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:04:46,619 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 487 transitions. [2024-11-09 07:04:46,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 07:04:46,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:46,621 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:46,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-11-09 07:04:46,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:04:46,822 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:04:46,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:46,822 INFO L85 PathProgramCache]: Analyzing trace with hash -855372169, now seen corresponding path program 1 times [2024-11-09 07:04:46,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:04:46,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100415564] [2024-11-09 07:04:46,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:46,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:04:46,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:04:46,824 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:04:46,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:04:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:47,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:04:47,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:47,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:04:48,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:04:48,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:04:49,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:04:49,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:04:50,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:04:51,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2024-11-09 07:04:51,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:04:51,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-09 07:04:51,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-09 07:04:51,715 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 23 proven. 132 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-09 07:04:51,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:04:51,836 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_603 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 8) ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#double_Array_0~0.base| v_ArrVal_603) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|))))) is different from false [2024-11-09 07:04:51,857 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_602 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_603 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 8) ((_ extract 7 0) (select (select (store (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_602) |c_~#double_Array_0~0.base| v_ArrVal_603) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|))))) is different from false [2024-11-09 07:04:52,153 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:04:52,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100415564] [2024-11-09 07:04:52,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100415564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:52,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [905463843] [2024-11-09 07:04:52,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:52,153 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:04:52,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:04:52,155 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:04:52,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-09 07:04:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:53,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 07:04:53,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:53,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-09 07:04:54,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:04:54,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:04:54,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:04:55,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:04:56,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 07:04:56,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 12 [2024-11-09 07:04:56,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 07:04:57,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 19 [2024-11-09 07:04:57,203 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 07:04:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 07:04:57,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:04:57,285 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_640 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#double_Array_0~0.base| v_ArrVal_640) |c_~#BOOL_unsigned_char_Array_0~0.base|) |c_~#BOOL_unsigned_char_Array_0~0.offset|)) (_ bv0 8)))) is different from false [2024-11-09 07:04:57,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [905463843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:04:57,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742601113] [2024-11-09 07:04:57,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:57,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:04:57,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:04:57,932 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:04:57,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 07:04:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:58,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 07:04:58,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:04:59,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:04:59,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-09 07:05:00,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-09 07:05:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 07:05:00,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:00,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742601113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:00,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:05:00,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12, 9] total 24 [2024-11-09 07:05:00,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216094903] [2024-11-09 07:05:00,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:00,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:05:00,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:05:00,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:05:00,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=724, Unknown=51, NotChecked=180, Total=1122 [2024-11-09 07:05:00,926 INFO L87 Difference]: Start difference. First operand 358 states and 487 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:05:03,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:03,840 INFO L93 Difference]: Finished difference Result 595 states and 804 transitions. [2024-11-09 07:05:03,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:05:03,843 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-09 07:05:03,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:03,846 INFO L225 Difference]: With dead ends: 595 [2024-11-09 07:05:03,846 INFO L226 Difference]: Without dead ends: 389 [2024-11-09 07:05:03,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 348 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=180, Invalid=772, Unknown=52, NotChecked=186, Total=1190 [2024-11-09 07:05:03,847 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 204 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:03,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 347 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-09 07:05:03,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-09 07:05:03,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 310. [2024-11-09 07:05:03,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 263 states have (on average 1.2813688212927756) internal successors, (337), 263 states have internal predecessors, (337), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 07:05:03,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 417 transitions. [2024-11-09 07:05:03,884 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 417 transitions. Word has length 107 [2024-11-09 07:05:03,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:03,885 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 417 transitions. [2024-11-09 07:05:03,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:05:03,885 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 417 transitions. [2024-11-09 07:05:03,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 07:05:03,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:03,886 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:03,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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)] Ended with exit code 0 [2024-11-09 07:05:04,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-09 07:05:04,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:04,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:05:04,488 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:05:04,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:04,488 INFO L85 PathProgramCache]: Analyzing trace with hash 420271563, now seen corresponding path program 1 times [2024-11-09 07:05:04,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:05:04,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217267199] [2024-11-09 07:05:04,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:04,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:05:04,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:05:04,492 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:05:04,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:05:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:04,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:05:04,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:04,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-09 07:05:05,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2024-11-09 07:05:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 07:05:05,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:05,402 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:05:05,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217267199] [2024-11-09 07:05:05,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217267199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:05,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:05:05,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:05:05,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981823429] [2024-11-09 07:05:05,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:05,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:05:05,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:05:05,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:05:05,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:05:05,404 INFO L87 Difference]: Start difference. First operand 310 states and 417 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:05:07,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:07,988 INFO L93 Difference]: Finished difference Result 635 states and 841 transitions. [2024-11-09 07:05:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:05:07,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-09 07:05:07,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:07,994 INFO L225 Difference]: With dead ends: 635 [2024-11-09 07:05:07,994 INFO L226 Difference]: Without dead ends: 438 [2024-11-09 07:05:07,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 07:05:07,996 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 115 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:07,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 637 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-09 07:05:07,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-09 07:05:08,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 315. [2024-11-09 07:05:08,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 268 states have (on average 1.2761194029850746) internal successors, (342), 268 states have internal predecessors, (342), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 07:05:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 422 transitions. [2024-11-09 07:05:08,037 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 422 transitions. Word has length 107 [2024-11-09 07:05:08,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:08,038 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 422 transitions. [2024-11-09 07:05:08,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:05:08,038 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 422 transitions. [2024-11-09 07:05:08,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 07:05:08,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:08,039 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:08,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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)] Forceful destruction successful, exit code 0 [2024-11-09 07:05:08,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:05:08,240 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:05:08,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:08,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1268672179, now seen corresponding path program 1 times [2024-11-09 07:05:08,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:05:08,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86029454] [2024-11-09 07:05:08,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:08,241 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:05:08,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:05:08,245 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:05:08,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:05:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:08,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 07:05:08,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:08,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-09 07:05:10,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-11-09 07:05:10,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2024-11-09 07:05:10,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2024-11-09 07:05:10,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-09 07:05:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 07:05:11,079 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:11,080 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:05:11,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86029454] [2024-11-09 07:05:11,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [86029454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:11,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:05:11,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 07:05:11,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961066047] [2024-11-09 07:05:11,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:11,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:05:11,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:05:11,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:05:11,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:05:11,082 INFO L87 Difference]: Start difference. First operand 315 states and 422 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:05:14,696 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 [] [2024-11-09 07:05:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:17,825 INFO L93 Difference]: Finished difference Result 649 states and 859 transitions. [2024-11-09 07:05:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:05:17,826 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-09 07:05:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:17,829 INFO L225 Difference]: With dead ends: 649 [2024-11-09 07:05:17,829 INFO L226 Difference]: Without dead ends: 452 [2024-11-09 07:05:17,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-09 07:05:17,830 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 191 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:17,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 409 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 584 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-09 07:05:17,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-09 07:05:17,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 325. [2024-11-09 07:05:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 278 states have (on average 1.2805755395683454) internal successors, (356), 278 states have internal predecessors, (356), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 07:05:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 436 transitions. [2024-11-09 07:05:17,872 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 436 transitions. Word has length 107 [2024-11-09 07:05:17,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:17,873 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 436 transitions. [2024-11-09 07:05:17,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:05:17,873 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 436 transitions. [2024-11-09 07:05:17,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 07:05:17,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:17,875 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:17,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:05:18,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:05:18,076 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:05:18,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:18,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1778145269, now seen corresponding path program 1 times [2024-11-09 07:05:18,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:05:18,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893894533] [2024-11-09 07:05:18,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:18,077 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:05:18,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:05:18,078 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:05:18,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:05:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:18,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 07:05:18,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:05:19,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:05:20,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2024-11-09 07:05:20,281 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 19 treesize of output 1 [2024-11-09 07:05:20,481 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 36 treesize of output 32 [2024-11-09 07:05:20,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:05:20,743 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 56 treesize of output 24 [2024-11-09 07:05:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 07:05:22,861 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:05:22,861 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:05:22,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893894533] [2024-11-09 07:05:22,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893894533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:22,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:05:22,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:05:22,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391235436] [2024-11-09 07:05:22,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:22,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:05:22,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:05:22,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:05:22,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:05:22,863 INFO L87 Difference]: Start difference. First operand 325 states and 436 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:05:26,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:28,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:30,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:34,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:36,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:39,659 WARN L539 Checker$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 07:05:41,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:43,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:45,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:47,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:49,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:53,439 WARN L539 Checker$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 07:05:56,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:05:58,432 WARN L539 Checker$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 07:06:00,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:03,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:09,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:11,567 WARN L539 Checker$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 07:06:14,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:16,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:17,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:19,763 WARN L539 Checker$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 07:06:21,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:23,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:27,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:29,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:32,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:33,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:06:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:33,950 INFO L93 Difference]: Finished difference Result 582 states and 776 transitions. [2024-11-09 07:06:33,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:33,952 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2024-11-09 07:06:33,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:33,955 INFO L225 Difference]: With dead ends: 582 [2024-11-09 07:06:33,955 INFO L226 Difference]: Without dead ends: 385 [2024-11-09 07:06:33,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=36, Invalid=72, Unknown=2, NotChecked=0, Total=110 [2024-11-09 07:06:33,959 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 207 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 7 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:33,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 287 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 394 Invalid, 24 Unknown, 0 Unchecked, 66.8s Time] [2024-11-09 07:06:33,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-09 07:06:33,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 349. [2024-11-09 07:06:33,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 302 states have (on average 1.2847682119205297) internal successors, (388), 302 states have internal predecessors, (388), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 07:06:33,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 468 transitions. [2024-11-09 07:06:33,999 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 468 transitions. Word has length 107 [2024-11-09 07:06:33,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:33,999 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 468 transitions. [2024-11-09 07:06:34,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:06:34,000 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 468 transitions. [2024-11-09 07:06:34,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 07:06:34,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:34,001 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:34,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:06:34,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:34,202 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:34,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:34,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2006399252, now seen corresponding path program 1 times [2024-11-09 07:06:34,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:06:34,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444314060] [2024-11-09 07:06:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:34,203 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:34,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:06:34,204 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:06:34,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:06:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:34,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 07:06:34,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:36,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:06:36,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2024-11-09 07:06:36,549 INFO L349 Elim1Store]: treesize reduction 22, result has 43.6 percent of original size [2024-11-09 07:06:36,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 30 [2024-11-09 07:06:36,748 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 49 treesize of output 43 [2024-11-09 07:06:37,079 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:06:37,079 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 69 treesize of output 31 [2024-11-09 07:06:37,246 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 07:06:37,246 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:06:37,246 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:06:37,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444314060] [2024-11-09 07:06:37,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444314060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:37,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:37,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 07:06:37,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915136736] [2024-11-09 07:06:37,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:37,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 07:06:37,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:06:37,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 07:06:37,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:06:37,248 INFO L87 Difference]: Start difference. First operand 349 states and 468 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:06:41,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:41,971 INFO L93 Difference]: Finished difference Result 645 states and 857 transitions. [2024-11-09 07:06:41,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:06:41,973 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-09 07:06:41,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:41,974 INFO L225 Difference]: With dead ends: 645 [2024-11-09 07:06:41,974 INFO L226 Difference]: Without dead ends: 419 [2024-11-09 07:06:41,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-09 07:06:41,975 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 290 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:41,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 280 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 07:06:41,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-09 07:06:42,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 355. [2024-11-09 07:06:42,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 308 states have (on average 1.2857142857142858) internal successors, (396), 308 states have internal predecessors, (396), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 07:06:42,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 476 transitions. [2024-11-09 07:06:42,012 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 476 transitions. Word has length 108 [2024-11-09 07:06:42,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:42,013 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 476 transitions. [2024-11-09 07:06:42,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:06:42,013 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 476 transitions. [2024-11-09 07:06:42,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 07:06:42,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:42,015 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:42,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:06:42,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:42,215 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:42,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:42,216 INFO L85 PathProgramCache]: Analyzing trace with hash -140049004, now seen corresponding path program 1 times [2024-11-09 07:06:42,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:06:42,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587536630] [2024-11-09 07:06:42,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:42,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:06:42,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:06:42,220 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:06:42,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:06:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:42,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 07:06:42,815 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:43,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:06:44,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:06:44,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:06:44,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 14 [2024-11-09 07:06:44,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 19 [2024-11-09 07:06:45,036 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 24 treesize of output 17 [2024-11-09 07:06:45,204 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 52 treesize of output 44 [2024-11-09 07:06:45,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:06:45,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 39 [2024-11-09 07:06:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 07:06:45,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:46,286 WARN L851 $PredicateComparison]: unable to prove that (forall ((|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_824 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_825 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv1 32) |c_~#signed_char_Array_0~0.offset|)) (.cse0 (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_824))) (or (bvsle ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse0 |c_~#signed_char_Array_0~0.base|) .cse1))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select v_ArrVal_824 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32))))) ((_ zero_extend 16) ((_ extract 15 0) (select v_ArrVal_824 |~#unsigned_short_int_Array_0~0.offset|))))) (let ((.cse2 (select (store .cse0 |c_~#double_Array_0~0.base| v_ArrVal_825) |c_~#signed_char_Array_0~0.base|))) (= ((_ sign_extend 24) ((_ extract 7 0) (select .cse2 .cse1))) ((_ sign_extend 24) ((_ extract 7 0) (select .cse2 |c_~#signed_char_Array_0~0.offset|)))))))) is different from false [2024-11-09 07:06:46,436 WARN L851 $PredicateComparison]: unable to prove that (forall ((|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_824 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_821 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_823 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv1 32) |c_~#signed_char_Array_0~0.offset|))) (let ((.cse2 (let ((.cse3 (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_821))) (store .cse3 |c_~#signed_char_Array_0~0.base| (let ((.cse4 (select .cse3 |c_~#signed_char_Array_0~0.base|))) (store .cse4 .cse1 ((_ sign_extend 24) ((_ extract 7 0) (select .cse4 |c_~#signed_char_Array_0~0.offset|))))))))) (or (let ((.cse0 (select (store (store .cse2 |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_824) |c_~#double_Array_0~0.base| v_ArrVal_825) |c_~#signed_char_Array_0~0.base|))) (= ((_ sign_extend 24) ((_ extract 7 0) (select .cse0 .cse1))) ((_ sign_extend 24) ((_ extract 7 0) (select .cse0 |c_~#signed_char_Array_0~0.offset|))))) (bvsle ((_ sign_extend 24) ((_ extract 7 0) (select (select (store (store .cse2 |c_~#double_Array_0~0.base| v_ArrVal_823) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_824) |c_~#signed_char_Array_0~0.base|) .cse1))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select v_ArrVal_824 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32))))) ((_ zero_extend 16) ((_ extract 15 0) (select v_ArrVal_824 |~#unsigned_short_int_Array_0~0.offset|))))))))) is different from false [2024-11-09 07:06:46,530 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:06:46,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587536630] [2024-11-09 07:06:46,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587536630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:46,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [192636427] [2024-11-09 07:06:46,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:46,530 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:06:46,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:06:46,533 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:06:46,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-09 07:06:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:48,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 07:06:48,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:49,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 07:06:49,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:06:50,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 07:06:50,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 12 [2024-11-09 07:06:50,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 17 [2024-11-09 07:06:50,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 15 [2024-11-09 07:06:51,123 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 48 treesize of output 40 [2024-11-09 07:06:51,711 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:06:51,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 39 [2024-11-09 07:06:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-09 07:06:51,731 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:52,056 WARN L851 $PredicateComparison]: unable to prove that (forall ((|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_859 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_859)) (.cse1 (bvadd (_ bv1 32) |c_~#signed_char_Array_0~0.offset|))) (or (let ((.cse0 (select (store .cse2 |c_~#double_Array_0~0.base| v_ArrVal_825) |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))))) (bvsle ((_ sign_extend 24) ((_ extract 7 0) (select (select .cse2 |c_~#signed_char_Array_0~0.base|) .cse1))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select v_ArrVal_859 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32))))) ((_ zero_extend 16) ((_ extract 15 0) (select v_ArrVal_859 |~#unsigned_short_int_Array_0~0.offset|)))))))) is different from false [2024-11-09 07:06:52,267 WARN L851 $PredicateComparison]: unable to prove that (forall ((|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_858 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_825 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_859 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_856 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv1 32) |c_~#signed_char_Array_0~0.offset|))) (let ((.cse2 (let ((.cse3 (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_856))) (store .cse3 |c_~#signed_char_Array_0~0.base| (let ((.cse4 (select .cse3 |c_~#signed_char_Array_0~0.base|))) (store .cse4 .cse1 ((_ sign_extend 24) ((_ extract 7 0) (select .cse4 |c_~#signed_char_Array_0~0.offset|))))))))) (or (let ((.cse0 (select (store (store .cse2 |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_859) |c_~#double_Array_0~0.base| v_ArrVal_825) |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))))) (bvsle ((_ sign_extend 24) ((_ extract 7 0) (select (select (store (store .cse2 |c_~#double_Array_0~0.base| v_ArrVal_858) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_859) |c_~#signed_char_Array_0~0.base|) .cse1))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select v_ArrVal_859 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32))))) ((_ zero_extend 16) ((_ extract 15 0) (select v_ArrVal_859 |~#unsigned_short_int_Array_0~0.offset|))))))))) is different from false [2024-11-09 07:06:52,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [192636427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:52,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325792482] [2024-11-09 07:06:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:52,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:52,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:06:52,412 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:52,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 07:06:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:52,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 07:06:52,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:54,332 INFO L349 Elim1Store]: treesize reduction 68, result has 26.9 percent of original size [2024-11-09 07:06:54,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 101 [2024-11-09 07:06:54,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 19 [2024-11-09 07:06:54,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 19 [2024-11-09 07:06:54,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 19 [2024-11-09 07:06:54,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 5 [2024-11-09 07:06:54,714 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 24 treesize of output 17 [2024-11-09 07:06:54,777 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 52 treesize of output 44 [2024-11-09 07:06:55,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:06:55,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 39 [2024-11-09 07:06:55,418 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 07:06:55,419 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:06:55,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325792482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:55,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:06:55,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 15 [2024-11-09 07:06:55,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018289545] [2024-11-09 07:06:55,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:55,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:06:55,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:06:55,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:06:55,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=280, Unknown=5, NotChecked=148, Total=506 [2024-11-09 07:06:55,422 INFO L87 Difference]: Start difference. First operand 355 states and 476 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:06:58,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:07:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:07:01,367 INFO L93 Difference]: Finished difference Result 622 states and 829 transitions. [2024-11-09 07:07:01,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 07:07:01,369 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2024-11-09 07:07:01,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:07:01,371 INFO L225 Difference]: With dead ends: 622 [2024-11-09 07:07:01,371 INFO L226 Difference]: Without dead ends: 390 [2024-11-09 07:07:01,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 364 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=137, Invalid=524, Unknown=5, NotChecked=204, Total=870 [2024-11-09 07:07:01,373 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 175 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:07:01,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 347 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 495 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2024-11-09 07:07:01,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-09 07:07:01,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 357. [2024-11-09 07:07:01,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 310 states have (on average 1.2838709677419355) internal successors, (398), 310 states have internal predecessors, (398), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 07:07:01,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 478 transitions. [2024-11-09 07:07:01,412 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 478 transitions. Word has length 108 [2024-11-09 07:07:01,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:07:01,412 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 478 transitions. [2024-11-09 07:07:01,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 07:07:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 478 transitions. [2024-11-09 07:07:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-09 07:07:01,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:07:01,414 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:01,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 07:07:01,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2024-11-09 07:07:01,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 07:07:02,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:07:02,015 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:07:02,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:02,015 INFO L85 PathProgramCache]: Analyzing trace with hash -141896046, now seen corresponding path program 1 times [2024-11-09 07:07:02,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:07:02,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737591716] [2024-11-09 07:07:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:02,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 07:07:02,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:07:02,017 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 07:07:02,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-09 07:07:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:02,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 07:07:02,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:03,304 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 25 treesize of output 10 [2024-11-09 07:07:04,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:07:04,589 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 148 treesize of output 73 [2024-11-09 07:07:07,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 110 [2024-11-09 07:07:08,459 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 141 treesize of output 110 [2024-11-09 07:07:11,877 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 141 treesize of output 110 [2024-11-09 07:07:12,925 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 231 treesize of output 181 [2024-11-09 07:07:12,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:07:12,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 167 treesize of output 117 [2024-11-09 07:07:13,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 19 [2024-11-09 07:07:13,549 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 188 treesize of output 160 [2024-11-09 07:07:13,970 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:07:13,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 200 treesize of output 173 [2024-11-09 07:07:20,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:07:20,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 405 treesize of output 161 [2024-11-09 07:07:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 12 proven. 152 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:07:20,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:07:21,110 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_928 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_928) |c_~#double_Array_0~0.base|))) (fp.eq (let ((.cse0 (concat (select .cse1 (bvadd (_ bv36 32) |c_~#double_Array_0~0.offset|)) (select .cse1 (bvadd (_ bv32 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (let ((.cse2 (concat (select .cse1 (bvadd (_ bv12 32) |c_~#double_Array_0~0.offset|)) (select .cse1 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2)))))) is different from false [2024-11-09 07:07:21,299 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_176| (_ BitVec 64)) (|~#signed_char_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_928 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_925 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (let ((.cse10 (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_925))) (store .cse10 |c_~#signed_char_Array_0~0.base| (let ((.cse11 (select .cse10 |c_~#signed_char_Array_0~0.base|))) (store .cse11 (bvadd (_ bv1 32) |~#signed_char_Array_0~0.offset|) ((_ sign_extend 24) ((_ extract 7 0) (select .cse11 |~#signed_char_Array_0~0.offset|))))))))) (let ((.cse5 (bvadd (_ bv12 32) |c_~#double_Array_0~0.offset|)) (.cse8 (select .cse7 |c_~#double_Array_0~0.base|)) (.cse6 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|))) (or (let ((.cse3 (bvadd (_ bv32 32) |c_~#double_Array_0~0.offset|)) (.cse2 (bvadd (_ bv36 32) |c_~#double_Array_0~0.offset|))) (let ((.cse1 (select (store (store .cse7 |c_~#double_Array_0~0.base| (store (store .cse8 .cse3 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_176|)) .cse2 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_176|))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_928) |c_~#double_Array_0~0.base|))) (fp.eq (let ((.cse0 (concat (select .cse1 .cse2) (select .cse1 .cse3)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (let ((.cse4 (concat (select .cse1 .cse5) (select .cse1 .cse6)))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4)))))) (not (= (let ((.cse9 (concat (select .cse8 .cse5) (select .cse8 .cse6)))) (fp ((_ extract 63 63) .cse9) ((_ extract 62 52) .cse9) ((_ extract 51 0) .cse9))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_176|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_176|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_176|)))))))) is different from false [2024-11-09 07:07:21,527 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:07:21,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737591716] [2024-11-09 07:07:21,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737591716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:07:21,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [217623806] [2024-11-09 07:07:21,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:21,528 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 07:07:21,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 07:07:21,529 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 07:07:21,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-09 07:07:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:23,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-09 07:07:23,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:07:24,720 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 07:07:30,672 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 124 treesize of output 71 [2024-11-09 07:07:33,805 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 121 treesize of output 88 [2024-11-09 07:07:34,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 88 [2024-11-09 07:07:38,683 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 121 treesize of output 88 [2024-11-09 07:07:39,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 129 [2024-11-09 07:07:39,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 129 treesize of output 111 [2024-11-09 07:07:41,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 124 [2024-11-09 07:07:41,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 155 [2024-11-09 07:07:52,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 133 [2024-11-09 07:07:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 12 proven. 152 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-09 07:07:52,461 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:08:05,927 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_969 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_186| (_ BitVec 64)) (v_ArrVal_967 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_967) |c_~#double_Array_0~0.base|))) (let ((.cse1 (let ((.cse4 (concat (select .cse3 (bvadd (_ bv12 32) |c_~#double_Array_0~0.offset|)) (select .cse3 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (or (not (fp.eq (let ((.cse0 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_186|) v_ArrVal_969))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) .cse1)) (fp.eq (let ((.cse2 (concat (select .cse3 (bvadd (_ bv36 32) |c_~#double_Array_0~0.offset|)) (select .cse3 (bvadd (_ bv32 32) |c_~#double_Array_0~0.offset|))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) .cse1) (not (= .cse1 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_186|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_186|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_186|)))))))) is different from false [2024-11-09 07:08:06,144 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_969 (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_186| (_ BitVec 64)) (v_ArrVal_967 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_185| (_ BitVec 64)) (v_ArrVal_965 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_966 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store (store |c_#memory_int| |c_~#signed_short_int_Array_0~0.base| v_ArrVal_966) |c_~#signed_char_Array_0~0.base| v_ArrVal_965))) (let ((.cse1 (select .cse11 |c_~#double_Array_0~0.base|)) (.cse9 (bvadd (_ bv32 32) |c_~#double_Array_0~0.offset|)) (.cse8 (bvadd (_ bv36 32) |c_~#double_Array_0~0.offset|))) (let ((.cse2 (bvadd (_ bv12 32) |c_~#double_Array_0~0.offset|)) (.cse7 (select (store (store .cse11 |c_~#double_Array_0~0.base| (store (store .cse1 .cse9 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_185|)) .cse8 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_185|))) |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_967) |c_~#double_Array_0~0.base|)) (.cse3 (bvadd (_ bv8 32) |c_~#double_Array_0~0.offset|))) (let ((.cse4 (let ((.cse10 (concat (select .cse7 .cse2) (select .cse7 .cse3)))) (fp ((_ extract 63 63) .cse10) ((_ extract 62 52) .cse10) ((_ extract 51 0) .cse10))))) (or (not (= (let ((.cse0 (concat (select .cse1 .cse2) (select .cse1 .cse3)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_185|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_185|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_185|)))) (not (= .cse4 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_186|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_186|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_186|)))) (not (fp.eq (let ((.cse5 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_186|) v_ArrVal_969))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))) .cse4)) (fp.eq (let ((.cse6 (concat (select .cse7 .cse8) (select .cse7 .cse9)))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6))) .cse4))))))) is different from false [2024-11-09 07:08:06,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [217623806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:08:06,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228337263] [2024-11-09 07:08:06,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:06,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:08:06,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:06,268 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:08:06,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0988e8f7-f587-46a4-8fb5-a7f664f0cd7f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 07:08:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:06,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 07:08:06,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:08:09,496 INFO L349 Elim1Store]: treesize reduction 171, result has 27.2 percent of original size [2024-11-09 07:08:09,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 721 treesize of output 693 [2024-11-09 07:08:09,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 228 treesize of output 225 [2024-11-09 07:08:10,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 118 treesize of output 115 [2024-11-09 07:08:10,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 240 treesize of output 237 [2024-11-09 07:08:11,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 171 treesize of output 144 [2024-11-09 07:08:13,365 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 41 treesize of output 22 [2024-11-09 07:08:13,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 9 [2024-11-09 07:08:13,546 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2024-11-09 07:08:13,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 28 [2024-11-09 07:08:14,257 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2024-11-09 07:08:14,258 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 3 case distinctions, treesize of input 252 treesize of output 239 [2024-11-09 07:08:14,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 9 [2024-11-09 07:08:14,913 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 29 treesize of output 17 [2024-11-09 07:08:14,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 9