./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ --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 c6953e3e2c891dc327bad9ef4ac79fcd91ec8cfbe2ca26df68844c164258e82e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:16:00,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:16:00,525 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:16:00,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:16:00,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:16:00,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:16:00,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:16:00,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:16:00,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:16:00,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:16:00,561 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:16:00,562 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:16:00,563 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:16:00,563 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:16:00,564 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:16:00,564 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:16:00,565 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:16:00,566 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:16:00,566 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:16:00,567 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:16:00,567 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:16:00,568 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:16:00,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:16:00,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:16:00,570 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:16:00,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:16:00,571 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:16:00,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:16:00,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:16:00,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:16:00,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:16:00,573 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:16:00,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:16:00,574 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:16:00,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:16:00,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:16:00,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:00,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:16:00,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:16:00,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:16:00,578 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:16:00,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:16:00,579 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:16:00,579 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:16:00,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:16:00,580 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_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6953e3e2c891dc327bad9ef4ac79fcd91ec8cfbe2ca26df68844c164258e82e [2023-11-19 05:16:00,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:16:00,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:16:00,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:16:00,847 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:16:00,848 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:16:00,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i [2023-11-19 05:16:04,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:16:04,263 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:16:04,264 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i [2023-11-19 05:16:04,272 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/data/dbdfccfa4/dc13bcb9770446b4af924fb46127b6c9/FLAGd298bc0f5 [2023-11-19 05:16:04,286 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/data/dbdfccfa4/dc13bcb9770446b4af924fb46127b6c9 [2023-11-19 05:16:04,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:16:04,290 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:16:04,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:04,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:16:04,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:16:04,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651d588f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04, skipping insertion in model container [2023-11-19 05:16:04,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,326 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:16:04,483 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i[916,929] [2023-11-19 05:16:04,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:04,571 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:16:04,583 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i[916,929] [2023-11-19 05:16:04,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:04,644 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:16:04,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04 WrapperNode [2023-11-19 05:16:04,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:04,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:04,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:16:04,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:16:04,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,744 INFO L138 Inliner]: procedures = 29, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 418 [2023-11-19 05:16:04,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:04,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:16:04,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:16:04,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:16:04,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,792 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:16:04,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:16:04,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:16:04,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:16:04,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (1/1) ... [2023-11-19 05:16:04,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:04,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:16:04,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:16:04,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:16:04,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:16:04,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:16:04,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 05:16:04,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 05:16:04,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:16:04,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 05:16:04,894 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:16:04,894 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:16:04,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:16:04,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:16:04,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:16:05,034 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:16:05,036 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:16:05,685 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:16:06,670 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:16:06,670 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:16:06,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:06 BoogieIcfgContainer [2023-11-19 05:16:06,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:16:06,679 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:16:06,679 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:16:06,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:16:06,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:16:04" (1/3) ... [2023-11-19 05:16:06,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59055879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:06, skipping insertion in model container [2023-11-19 05:16:06,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:04" (2/3) ... [2023-11-19 05:16:06,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59055879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:06, skipping insertion in model container [2023-11-19 05:16:06,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:06" (3/3) ... [2023-11-19 05:16:06,688 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-26.i [2023-11-19 05:16:06,706 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:16:06,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:16:06,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:16:06,782 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@1f48f1be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:16:06,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:16:06,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:06,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 05:16:06,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:06,798 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:06,799 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:06,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:06,804 INFO L85 PathProgramCache]: Analyzing trace with hash -403526993, now seen corresponding path program 1 times [2023-11-19 05:16:06,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:16:06,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975582015] [2023-11-19 05:16:06,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:06,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:16:07,018 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:16:07,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [531651147] [2023-11-19 05:16:07,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:07,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:16:07,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:16:07,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:16:07,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:16:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:16:08,070 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:16:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:16:09,934 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:16:09,936 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:16:09,938 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:16:09,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:16:10,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:16:10,157 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:16:10,161 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:16:10,209 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-19 05:16:10,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-19 05:16:10,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-19 05:16:10,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 05:16:10,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-19 05:16:10,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated [2023-11-19 05:16:10,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-19 05:16:10,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 05:16:10,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated [2023-11-19 05:16:10,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-19 05:16:10,212 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-19 05:16:10,212 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-19 05:16:10,212 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-19 05:16:10,212 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated [2023-11-19 05:16:10,213 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-19 05:16:10,213 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-19 05:16:10,213 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated [2023-11-19 05:16:10,213 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-11-19 05:16:10,213 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-19 05:16:10,213 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-19 05:16:10,213 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short64 could not be translated [2023-11-19 05:16:10,214 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated [2023-11-19 05:16:10,214 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short64 could not be translated [2023-11-19 05:16:10,214 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated [2023-11-19 05:16:10,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated [2023-11-19 05:16:10,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-19 05:16:10,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated [2023-11-19 05:16:10,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-19 05:16:10,215 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-11-19 05:16:10,216 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-11-19 05:16:10,216 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated [2023-11-19 05:16:10,217 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated [2023-11-19 05:16:10,217 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-11-19 05:16:10,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-11-19 05:16:10,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-19 05:16:10,219 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-11-19 05:16:10,219 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-19 05:16:10,220 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-11-19 05:16:10,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-19 05:16:10,221 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-11-19 05:16:10,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-19 05:16:10,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-11-19 05:16:10,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:16:10 BoogieIcfgContainer [2023-11-19 05:16:10,238 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:16:10,239 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:16:10,239 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:16:10,239 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:16:10,239 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:06" (3/4) ... [2023-11-19 05:16:10,241 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:16:10,243 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:16:10,244 INFO L158 Benchmark]: Toolchain (without parser) took 5953.29ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 117.2MB in the beginning and 117.4MB in the end (delta: -228.8kB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2023-11-19 05:16:10,244 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:16:10,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.84ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 102.3MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 05:16:10,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.54ms. Allocated memory is still 163.6MB. Free memory was 102.3MB in the beginning and 97.7MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 05:16:10,246 INFO L158 Benchmark]: Boogie Preprocessor took 64.55ms. Allocated memory is still 163.6MB. Free memory was 97.7MB in the beginning and 94.1MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:16:10,247 INFO L158 Benchmark]: RCFGBuilder took 1862.34ms. Allocated memory is still 163.6MB. Free memory was 94.1MB in the beginning and 75.0MB in the end (delta: 19.0MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2023-11-19 05:16:10,248 INFO L158 Benchmark]: TraceAbstraction took 3559.47ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 74.0MB in the beginning and 117.4MB in the end (delta: -43.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:16:10,248 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 197.1MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:16:10,252 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.84ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 102.3MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.54ms. Allocated memory is still 163.6MB. Free memory was 102.3MB in the beginning and 97.7MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.55ms. Allocated memory is still 163.6MB. Free memory was 97.7MB in the beginning and 94.1MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1862.34ms. Allocated memory is still 163.6MB. Free memory was 94.1MB in the beginning and 75.0MB in the end (delta: 19.0MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3559.47ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 74.0MB in the beginning and 117.4MB in the end (delta: -43.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 197.1MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem65 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 someBinaryFLOATComparisonOperation at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 41. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] float float_Array_0[2][2] = { {8.75, 199.5}, {1.125, 100000000000000.3} }; [L25-L27] signed long int signed_long_int_Array_0[1] = { -32 }; [L28-L30] signed short int signed_short_int_Array_0[2] = { 1, -1 }; [L31-L33] unsigned char unsigned_char_Array_0[2] = { 2, 64 }; [L34-L36] unsigned long int unsigned_long_int_Array_0[1] = { 50 }; [L37] unsigned char last_1_unsigned_char_Array_0_1_ = 64; [L80] isInitial = 1 [L81] FCALL initially() [L82] COND TRUE 1 [L83] CALL updateLastVariables() [L73] EXPR unsigned_char_Array_0[1] [L73] last_1_unsigned_char_Array_0_1_ = unsigned_char_Array_0[1] [L83] RET updateLastVariables() [L84] CALL updateVariables() [L57] float_Array_0[0][1] = __VERIFIER_nondet_float() [L58] EXPR float_Array_0[0][1] [L58] EXPR float_Array_0[0][1] >= 0.0F && float_Array_0[0][1] <= -1.0e-20F [L58] EXPR float_Array_0[0][1] [L58] EXPR float_Array_0[0][1] >= 0.0F && float_Array_0[0][1] <= -1.0e-20F [L58] EXPR (float_Array_0[0][1] >= 0.0F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 4611686.018427382800e+12F && float_Array_0[0][1] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L58] CALL assume_abort_if_not((float_Array_0[0][1] >= 0.0F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 4611686.018427382800e+12F && float_Array_0[0][1] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L58] RET assume_abort_if_not((float_Array_0[0][1] >= 0.0F && float_Array_0[0][1] <= -1.0e-20F) || (float_Array_0[0][1] <= 4611686.018427382800e+12F && float_Array_0[0][1] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L59] float_Array_0[1][1] = __VERIFIER_nondet_float() [L60] EXPR float_Array_0[1][1] [L60] EXPR float_Array_0[1][1] >= -461168.6018427382800e+13F && float_Array_0[1][1] <= -1.0e-20F [L60] EXPR float_Array_0[1][1] [L60] EXPR float_Array_0[1][1] >= -461168.6018427382800e+13F && float_Array_0[1][1] <= -1.0e-20F [L60] EXPR (float_Array_0[1][1] >= -461168.6018427382800e+13F && float_Array_0[1][1] <= -1.0e-20F) || (float_Array_0[1][1] <= 4611686.018427382800e+12F && float_Array_0[1][1] >= 1.0e-20F ) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L60] CALL assume_abort_if_not((float_Array_0[1][1] >= -461168.6018427382800e+13F && float_Array_0[1][1] <= -1.0e-20F) || (float_Array_0[1][1] <= 4611686.018427382800e+12F && float_Array_0[1][1] >= 1.0e-20F )) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L60] RET assume_abort_if_not((float_Array_0[1][1] >= -461168.6018427382800e+13F && float_Array_0[1][1] <= -1.0e-20F) || (float_Array_0[1][1] <= 4611686.018427382800e+12F && float_Array_0[1][1] >= 1.0e-20F )) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L61] signed_long_int_Array_0[0] = __VERIFIER_nondet_long() [L62] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L62] CALL assume_abort_if_not(signed_long_int_Array_0[0] >= -2147483648) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L62] RET assume_abort_if_not(signed_long_int_Array_0[0] >= -2147483648) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L63] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L63] CALL assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(signed_long_int_Array_0[0] <= 2147483647) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L64] EXPR signed_long_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L64] CALL assume_abort_if_not(signed_long_int_Array_0[0] != 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(signed_long_int_Array_0[0] != 0) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L65] signed_short_int_Array_0[0] = __VERIFIER_nondet_short() [L66] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L66] CALL assume_abort_if_not(signed_short_int_Array_0[0] >= -32767) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(signed_short_int_Array_0[0] >= -32767) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L67] EXPR signed_short_int_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L67] CALL assume_abort_if_not(signed_short_int_Array_0[0] <= 32766) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(signed_short_int_Array_0[0] <= 32766) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L68] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L69] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L69] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] EXPR unsigned_char_Array_0[0] VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L70] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [\old(cond)=1, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L84] RET updateVariables() [L85] CALL step() [L41] EXPR float_Array_0[0][1] [L41] EXPR float_Array_0[1][1] [L41] float_Array_0[1][0] = ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1]) [L42] EXPR signed_short_int_Array_0[0] [L42] COND FALSE !((- last_1_unsigned_char_Array_0_1_) >= (signed_short_int_Array_0[0] / ((((-4) < 0 ) ? -(-4) : (-4))))) [L45] EXPR float_Array_0[0][1] [L45] float_Array_0[0][0] = float_Array_0[0][1] [L46] EXPR float_Array_0[0][0] [L46] EXPR float_Array_0[0][0] [L46] COND TRUE float_Array_0[0][0] > float_Array_0[0][0] [L47] EXPR unsigned_char_Array_0[1] [L47] EXPR unsigned_char_Array_0[1] [L47] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L47] EXPR unsigned_char_Array_0[1] [L47] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L47] signed_short_int_Array_0[1] = ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))) [L51] EXPR unsigned_char_Array_0[1] [L51] EXPR unsigned_char_Array_0[1] [L51] EXPR signed_short_int_Array_0[1] [L51] signed long int stepLocal_0 = unsigned_char_Array_0[1] + (unsigned_char_Array_0[1] + signed_short_int_Array_0[1]); [L52] EXPR unsigned_char_Array_0[1] [L52] EXPR signed_short_int_Array_0[1] [L52] EXPR signed_long_int_Array_0[0] [L52] COND TRUE stepLocal_0 != (unsigned_char_Array_0[1] * (signed_short_int_Array_0[1] / signed_long_int_Array_0[0])) [L53] EXPR signed_short_int_Array_0[1] [L53] EXPR unsigned_char_Array_0[1] [L53] EXPR ((10u) < ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1]))) ? (10u) : ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1])) [L53] EXPR unsigned_char_Array_0[1] [L53] unsigned_long_int_Array_0[0] = (((((10u) < ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1]))) ? (10u) : ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1])))) + unsigned_char_Array_0[1]) [L85] RET step() [L86] CALL, EXPR property() [L76] EXPR float_Array_0[0][0] [L76] EXPR float_Array_0[0][0] [L76] EXPR (float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))))))) [L76] EXPR signed_short_int_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR (((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR unsigned_char_Array_0[1] [L76] EXPR ((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]) [L76] EXPR (((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) [L76] EXPR (float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))))))) [L76] EXPR ((float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))))))) && (float_Array_0[1][0] == ((float) ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1]))) [L76] EXPR (((float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))))))) && (float_Array_0[1][0] == ((float) ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1])))) && (((- last_1_unsigned_char_Array_0_1_) >= (signed_short_int_Array_0[0] / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) [L76] EXPR ((((float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))))))) && (float_Array_0[1][0] == ((float) ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1])))) && (((- last_1_unsigned_char_Array_0_1_) >= (signed_short_int_Array_0[0] / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1)) && (((unsigned_char_Array_0[1] + (unsigned_char_Array_0[1] + signed_short_int_Array_0[1])) != (unsigned_char_Array_0[1] * (signed_short_int_Array_0[1] / signed_long_int_Array_0[0]))) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) (((((10u) < ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1]))) ? (10u) : ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1])))) + unsigned_char_Array_0[1]))) : 1) [L76] EXPR (((((float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))))))) && (float_Array_0[1][0] == ((float) ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1])))) && (((- last_1_unsigned_char_Array_0_1_) >= (signed_short_int_Array_0[0] / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1)) && (((unsigned_char_Array_0[1] + (unsigned_char_Array_0[1] + signed_short_int_Array_0[1])) != (unsigned_char_Array_0[1] * (signed_short_int_Array_0[1] / signed_long_int_Array_0[0]))) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) (((((10u) < ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1]))) ? (10u) : ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1])))) + unsigned_char_Array_0[1]))) : 1)) && (float_Array_0[0][0] == ((float) float_Array_0[0][1])) [L76-L77] return (((((float_Array_0[0][0] > float_Array_0[0][0]) ? (signed_short_int_Array_0[1] == ((signed short int) ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : (signed_short_int_Array_0[1] == ((signed short int) (((((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) < ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))) ? ((unsigned_char_Array_0[1] - ((((unsigned_char_Array_0[1]) > (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1]))))) : ((unsigned_char_Array_0[1] + ((((unsigned_char_Array_0[1]) < (unsigned_char_Array_0[1])) ? (unsigned_char_Array_0[1]) : (unsigned_char_Array_0[1])))))))))) && (float_Array_0[1][0] == ((float) ((0.85f - float_Array_0[0][1]) + float_Array_0[1][1])))) && (((- last_1_unsigned_char_Array_0_1_) >= (signed_short_int_Array_0[0] / ((((-4) < 0 ) ? -(-4) : (-4))))) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1)) && (((unsigned_char_Array_0[1] + (unsigned_char_Array_0[1] + signed_short_int_Array_0[1])) != (unsigned_char_Array_0[1] * (signed_short_int_Array_0[1] / signed_long_int_Array_0[0]))) ? (unsigned_long_int_Array_0[0] == ((unsigned long int) (((((10u) < ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1]))) ? (10u) : ((signed_short_int_Array_0[1] + unsigned_char_Array_0[1])))) + unsigned_char_Array_0[1]))) : 1)) && (float_Array_0[0][0] == ((float) float_Array_0[0][1])) ; [L86] RET, EXPR property() [L86] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] [L19] reach_error() VAL [\old(cond)=0, cond=0, float_Array_0={4:0}, isInitial=1, last_1_unsigned_char_Array_0_1_=64, signed_long_int_Array_0={5:0}, signed_short_int_Array_0={6:0}, unsigned_char_Array_0={7:0}, unsigned_long_int_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 1, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:16:10,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/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_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ --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 c6953e3e2c891dc327bad9ef4ac79fcd91ec8cfbe2ca26df68844c164258e82e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:16:12,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:16:12,895 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:16:12,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:16:12,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:16:12,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:16:12,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:16:12,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:16:12,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:16:12,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:16:12,935 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:16:12,936 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:16:12,936 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:16:12,940 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:16:12,941 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:16:12,941 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:16:12,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:16:12,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:16:12,943 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:16:12,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:16:12,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:16:12,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:16:12,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:16:12,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:16:12,946 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:16:12,946 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:16:12,947 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:16:12,947 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:16:12,947 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:16:12,948 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:16:12,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:16:12,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:16:12,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:16:12,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:12,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:16:12,951 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:16:12,951 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:16:12,951 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:16:12,951 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:16:12,952 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:16:12,952 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:16:12,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:16:12,953 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6953e3e2c891dc327bad9ef4ac79fcd91ec8cfbe2ca26df68844c164258e82e [2023-11-19 05:16:13,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:16:13,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:16:13,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:16:13,363 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:16:13,363 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:16:13,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i [2023-11-19 05:16:16,424 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:16:16,751 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:16:16,753 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i [2023-11-19 05:16:16,765 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/data/63966a668/a444624d79e94cbda6582afa1aa493fb/FLAG41ad6268b [2023-11-19 05:16:16,789 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/data/63966a668/a444624d79e94cbda6582afa1aa493fb [2023-11-19 05:16:16,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:16:16,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:16:16,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:16,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:16:16,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:16:16,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:16" (1/1) ... [2023-11-19 05:16:16,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:16, skipping insertion in model container [2023-11-19 05:16:16,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:16" (1/1) ... [2023-11-19 05:16:16,847 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:16:16,994 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i[916,929] [2023-11-19 05:16:17,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:17,087 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:16:17,101 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-26.i[916,929] [2023-11-19 05:16:17,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:17,185 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:16:17,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17 WrapperNode [2023-11-19 05:16:17,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:17,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:17,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:16:17,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:16:17,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,263 INFO L138 Inliner]: procedures = 36, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 416 [2023-11-19 05:16:17,263 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:17,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:16:17,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:16:17,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:16:17,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,284 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:16:17,361 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:16:17,361 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:16:17,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:16:17,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (1/1) ... [2023-11-19 05:16:17,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:17,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:16:17,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:16:17,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:16:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:16:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 05:16:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-19 05:16:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:16:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 05:16:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 05:16:17,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:16:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-19 05:16:17,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 05:16:17,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-19 05:16:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:16:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:16:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:16:17,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:16:17,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 05:16:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-19 05:16:17,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:16:17,624 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:16:17,626 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:16:18,935 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:16:18,944 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:16:18,956 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:16:18,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:18 BoogieIcfgContainer [2023-11-19 05:16:18,960 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:16:18,963 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:16:18,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:16:18,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:16:18,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:16:16" (1/3) ... [2023-11-19 05:16:18,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38728179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:18, skipping insertion in model container [2023-11-19 05:16:18,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:17" (2/3) ... [2023-11-19 05:16:18,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38728179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:18, skipping insertion in model container [2023-11-19 05:16:18,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:18" (3/3) ... [2023-11-19 05:16:18,973 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-26.i [2023-11-19 05:16:19,010 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:16:19,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:16:19,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:16:19,093 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@6652b4f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:16:19,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:16:19,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:19,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 05:16:19,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:19,114 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:19,115 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:19,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:19,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1509494359, now seen corresponding path program 1 times [2023-11-19 05:16:19,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:19,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737363527] [2023-11-19 05:16:19,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:19,136 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:19,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:19,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:19,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:16:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:19,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:16:19,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:19,670 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-11-19 05:16:19,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:19,672 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:19,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737363527] [2023-11-19 05:16:19,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737363527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:19,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:19,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:16:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227656701] [2023-11-19 05:16:19,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:19,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:16:19,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:19,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:16:19,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:16:19,714 INFO L87 Difference]: Start difference. First operand has 93 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 82 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:19,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:19,746 INFO L93 Difference]: Finished difference Result 179 states and 271 transitions. [2023-11-19 05:16:19,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:16:19,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2023-11-19 05:16:19,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:19,761 INFO L225 Difference]: With dead ends: 179 [2023-11-19 05:16:19,761 INFO L226 Difference]: Without dead ends: 89 [2023-11-19 05:16:19,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:16:19,769 INFO L413 NwaCegarLoop]: 127 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, 127 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 [2023-11-19 05:16:19,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:16:19,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-19 05:16:19,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-19 05:16:19,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 78 states have internal predecessors, (109), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:19,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 127 transitions. [2023-11-19 05:16:19,814 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 127 transitions. Word has length 89 [2023-11-19 05:16:19,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:19,815 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 127 transitions. [2023-11-19 05:16:19,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:19,816 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 127 transitions. [2023-11-19 05:16:19,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 05:16:19,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:19,821 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:19,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 05:16:20,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:20,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:20,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:20,025 INFO L85 PathProgramCache]: Analyzing trace with hash 359888411, now seen corresponding path program 1 times [2023-11-19 05:16:20,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:20,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730948258] [2023-11-19 05:16:20,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:20,026 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:20,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:20,030 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:20,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:16:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:20,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:16:20,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:20,561 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 [2023-11-19 05:16:20,596 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:16:20,597 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:20,597 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:20,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730948258] [2023-11-19 05:16:20,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730948258] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:20,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:20,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:16:20,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946196622] [2023-11-19 05:16:20,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:20,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:20,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:20,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:20,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:20,601 INFO L87 Difference]: Start difference. First operand 89 states and 127 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:21,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:21,108 INFO L93 Difference]: Finished difference Result 175 states and 251 transitions. [2023-11-19 05:16:21,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:16:21,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2023-11-19 05:16:21,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:21,112 INFO L225 Difference]: With dead ends: 175 [2023-11-19 05:16:21,113 INFO L226 Difference]: Without dead ends: 89 [2023-11-19 05:16:21,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:21,115 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 1 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:21,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 246 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 05:16:21,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-19 05:16:21,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-19 05:16:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.3846153846153846) internal successors, (108), 78 states have internal predecessors, (108), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:21,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2023-11-19 05:16:21,128 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 89 [2023-11-19 05:16:21,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:21,130 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2023-11-19 05:16:21,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:21,131 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2023-11-19 05:16:21,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 05:16:21,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:21,135 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:21,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-19 05:16:21,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:21,344 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:21,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:21,345 INFO L85 PathProgramCache]: Analyzing trace with hash -457760039, now seen corresponding path program 1 times [2023-11-19 05:16:21,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:21,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819474229] [2023-11-19 05:16:21,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:21,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:21,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:21,349 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:21,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 05:16:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:21,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:16:21,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:21,830 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:16:21,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:21,832 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:21,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819474229] [2023-11-19 05:16:21,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819474229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:21,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:21,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:16:21,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801868779] [2023-11-19 05:16:21,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:21,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:16:21,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:21,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:16:21,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:16:21,848 INFO L87 Difference]: Start difference. First operand 89 states and 126 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:21,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:21,966 INFO L93 Difference]: Finished difference Result 184 states and 261 transitions. [2023-11-19 05:16:21,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:16:21,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2023-11-19 05:16:21,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:21,975 INFO L225 Difference]: With dead ends: 184 [2023-11-19 05:16:21,975 INFO L226 Difference]: Without dead ends: 98 [2023-11-19 05:16:21,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:16:21,977 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 10 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:21,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 473 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:16:21,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-19 05:16:22,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 93. [2023-11-19 05:16:22,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.3658536585365855) internal successors, (112), 82 states have internal predecessors, (112), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:22,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2023-11-19 05:16:22,012 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 89 [2023-11-19 05:16:22,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:22,013 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2023-11-19 05:16:22,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:22,013 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2023-11-19 05:16:22,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 05:16:22,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:22,019 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:22,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:16:22,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:22,220 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:22,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:22,220 INFO L85 PathProgramCache]: Analyzing trace with hash -455912997, now seen corresponding path program 1 times [2023-11-19 05:16:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:22,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063029841] [2023-11-19 05:16:22,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:22,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:22,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:22,223 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:22,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 05:16:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:22,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:16:22,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:22,810 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 95 treesize of output 41 [2023-11-19 05:16:22,857 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:16:22,859 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:22,859 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:22,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063029841] [2023-11-19 05:16:22,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063029841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:22,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:22,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:16:22,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677619934] [2023-11-19 05:16:22,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:22,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:16:22,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:22,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:16:22,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 05:16:22,866 INFO L87 Difference]: Start difference. First operand 93 states and 130 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:24,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:24,258 INFO L93 Difference]: Finished difference Result 189 states and 266 transitions. [2023-11-19 05:16:24,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 05:16:24,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 89 [2023-11-19 05:16:24,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:24,260 INFO L225 Difference]: With dead ends: 189 [2023-11-19 05:16:24,260 INFO L226 Difference]: Without dead ends: 99 [2023-11-19 05:16:24,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:16:24,262 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 133 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:24,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 379 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 05:16:24,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-19 05:16:24,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2023-11-19 05:16:24,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:24,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 129 transitions. [2023-11-19 05:16:24,274 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 129 transitions. Word has length 89 [2023-11-19 05:16:24,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:24,275 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 129 transitions. [2023-11-19 05:16:24,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:24,275 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 129 transitions. [2023-11-19 05:16:24,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 05:16:24,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:24,278 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:24,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:16:24,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:24,487 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:24,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:24,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1984941781, now seen corresponding path program 1 times [2023-11-19 05:16:24,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:24,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828762172] [2023-11-19 05:16:24,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:24,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:24,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:24,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:24,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 05:16:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:24,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:16:24,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:24,917 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 43 treesize of output 19 [2023-11-19 05:16:24,947 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:16:24,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:24,948 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:24,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828762172] [2023-11-19 05:16:24,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828762172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:24,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:24,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:16:24,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262520551] [2023-11-19 05:16:24,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:24,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:24,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:24,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:24,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:24,953 INFO L87 Difference]: Start difference. First operand 93 states and 129 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:25,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:25,346 INFO L93 Difference]: Finished difference Result 181 states and 253 transitions. [2023-11-19 05:16:25,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:16:25,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2023-11-19 05:16:25,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:25,348 INFO L225 Difference]: With dead ends: 181 [2023-11-19 05:16:25,349 INFO L226 Difference]: Without dead ends: 91 [2023-11-19 05:16:25,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:25,355 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:25,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 239 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 05:16:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-19 05:16:25,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-19 05:16:25,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.35) internal successors, (108), 80 states have internal predecessors, (108), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:25,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 126 transitions. [2023-11-19 05:16:25,369 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 126 transitions. Word has length 91 [2023-11-19 05:16:25,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:25,370 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 126 transitions. [2023-11-19 05:16:25,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:25,370 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 126 transitions. [2023-11-19 05:16:25,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 05:16:25,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:25,375 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:25,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:16:25,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:25,585 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:25,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:25,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1660065302, now seen corresponding path program 1 times [2023-11-19 05:16:25,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:25,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633086795] [2023-11-19 05:16:25,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:25,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:25,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:25,587 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:25,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:16:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:25,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:16:25,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:25,990 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 [2023-11-19 05:16:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:16:26,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:26,015 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:26,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633086795] [2023-11-19 05:16:26,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633086795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:26,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:26,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:16:26,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394631563] [2023-11-19 05:16:26,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:26,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:26,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:26,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:26,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:26,018 INFO L87 Difference]: Start difference. First operand 91 states and 126 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:26,551 INFO L93 Difference]: Finished difference Result 179 states and 249 transitions. [2023-11-19 05:16:26,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:16:26,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-11-19 05:16:26,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:26,553 INFO L225 Difference]: With dead ends: 179 [2023-11-19 05:16:26,554 INFO L226 Difference]: Without dead ends: 91 [2023-11-19 05:16:26,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:26,555 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 12 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:26,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 225 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 05:16:26,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-19 05:16:26,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-19 05:16:26,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.3375) internal successors, (107), 80 states have internal predecessors, (107), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:26,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 125 transitions. [2023-11-19 05:16:26,564 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 125 transitions. Word has length 96 [2023-11-19 05:16:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:26,565 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 125 transitions. [2023-11-19 05:16:26,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:26,565 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 125 transitions. [2023-11-19 05:16:26,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 05:16:26,567 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:26,567 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:26,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:16:26,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:26,776 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:26,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:26,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1800613912, now seen corresponding path program 1 times [2023-11-19 05:16:26,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:26,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135992074] [2023-11-19 05:16:26,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:26,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:26,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:26,779 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:26,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-19 05:16:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:27,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:16:27,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:27,226 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 [2023-11-19 05:16:27,249 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:16:27,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:27,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:27,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135992074] [2023-11-19 05:16:27,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135992074] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:27,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:27,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:16:27,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099154361] [2023-11-19 05:16:27,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:27,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:27,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:27,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:27,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:27,252 INFO L87 Difference]: Start difference. First operand 91 states and 125 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:27,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:27,484 INFO L93 Difference]: Finished difference Result 179 states and 247 transitions. [2023-11-19 05:16:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:16:27,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-11-19 05:16:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:27,486 INFO L225 Difference]: With dead ends: 179 [2023-11-19 05:16:27,486 INFO L226 Difference]: Without dead ends: 91 [2023-11-19 05:16:27,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:27,487 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 9 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:27,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 226 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:16:27,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-19 05:16:27,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-19 05:16:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:27,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 124 transitions. [2023-11-19 05:16:27,495 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 124 transitions. Word has length 96 [2023-11-19 05:16:27,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:27,496 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 124 transitions. [2023-11-19 05:16:27,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:27,496 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 124 transitions. [2023-11-19 05:16:27,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 05:16:27,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:27,498 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:27,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-19 05:16:27,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:27,706 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:27,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:27,707 INFO L85 PathProgramCache]: Analyzing trace with hash -4824422, now seen corresponding path program 1 times [2023-11-19 05:16:27,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:27,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804938653] [2023-11-19 05:16:27,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:27,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:27,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:27,709 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:27,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:16:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:28,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:16:28,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:28,116 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 [2023-11-19 05:16:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:16:28,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:28,141 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:28,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804938653] [2023-11-19 05:16:28,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [804938653] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:28,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:28,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:16:28,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678377768] [2023-11-19 05:16:28,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:28,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:28,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:28,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:28,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:28,144 INFO L87 Difference]: Start difference. First operand 91 states and 124 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:28,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:28,471 INFO L93 Difference]: Finished difference Result 180 states and 246 transitions. [2023-11-19 05:16:28,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:16:28,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-11-19 05:16:28,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:28,473 INFO L225 Difference]: With dead ends: 180 [2023-11-19 05:16:28,473 INFO L226 Difference]: Without dead ends: 92 [2023-11-19 05:16:28,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:28,474 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 2 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:28,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 231 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:16:28,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-19 05:16:28,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2023-11-19 05:16:28,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 80 states have (on average 1.3125) internal successors, (105), 80 states have internal predecessors, (105), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:28,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 123 transitions. [2023-11-19 05:16:28,481 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 123 transitions. Word has length 96 [2023-11-19 05:16:28,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:28,481 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 123 transitions. [2023-11-19 05:16:28,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:28,482 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 123 transitions. [2023-11-19 05:16:28,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 05:16:28,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:28,492 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:28,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 05:16:28,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:28,702 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:28,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:28,703 INFO L85 PathProgramCache]: Analyzing trace with hash 417877404, now seen corresponding path program 1 times [2023-11-19 05:16:28,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:28,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907798673] [2023-11-19 05:16:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:28,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:28,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:28,704 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:28,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-19 05:16:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:29,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:16:29,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:29,158 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 43 treesize of output 19 [2023-11-19 05:16:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:16:29,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:29,186 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:29,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907798673] [2023-11-19 05:16:29,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907798673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:29,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:29,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:16:29,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872256726] [2023-11-19 05:16:29,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:29,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:29,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:29,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:29,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:29,189 INFO L87 Difference]: Start difference. First operand 91 states and 123 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:29,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:29,210 INFO L93 Difference]: Finished difference Result 177 states and 240 transitions. [2023-11-19 05:16:29,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:16:29,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2023-11-19 05:16:29,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:29,212 INFO L225 Difference]: With dead ends: 177 [2023-11-19 05:16:29,212 INFO L226 Difference]: Without dead ends: 89 [2023-11-19 05:16:29,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:29,213 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 36 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:29,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 190 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:16:29,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-19 05:16:29,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-19 05:16:29,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.294871794871795) internal successors, (101), 78 states have internal predecessors, (101), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:29,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 119 transitions. [2023-11-19 05:16:29,220 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 119 transitions. Word has length 96 [2023-11-19 05:16:29,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:29,220 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 119 transitions. [2023-11-19 05:16:29,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 119 transitions. [2023-11-19 05:16:29,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 05:16:29,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:29,222 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:29,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-19 05:16:29,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:29,431 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:29,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:29,432 INFO L85 PathProgramCache]: Analyzing trace with hash -504557523, now seen corresponding path program 1 times [2023-11-19 05:16:29,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:29,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347599928] [2023-11-19 05:16:29,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:29,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:29,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:29,434 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:29,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-19 05:16:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:29,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:16:29,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:29,978 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 [2023-11-19 05:16:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:16:30,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:30,000 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:30,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347599928] [2023-11-19 05:16:30,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347599928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:30,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:30,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:16:30,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028660207] [2023-11-19 05:16:30,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:30,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:30,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:30,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:30,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:30,003 INFO L87 Difference]: Start difference. First operand 89 states and 119 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:30,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:30,341 INFO L93 Difference]: Finished difference Result 175 states and 235 transitions. [2023-11-19 05:16:30,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:16:30,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 101 [2023-11-19 05:16:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:30,343 INFO L225 Difference]: With dead ends: 175 [2023-11-19 05:16:30,343 INFO L226 Difference]: Without dead ends: 89 [2023-11-19 05:16:30,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:30,344 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 34 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:30,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 189 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:16:30,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-19 05:16:30,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-19 05:16:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.2820512820512822) internal successors, (100), 78 states have internal predecessors, (100), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 118 transitions. [2023-11-19 05:16:30,350 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 118 transitions. Word has length 101 [2023-11-19 05:16:30,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:30,351 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 118 transitions. [2023-11-19 05:16:30,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 118 transitions. [2023-11-19 05:16:30,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 05:16:30,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:30,353 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:30,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-19 05:16:30,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:30,560 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:30,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:30,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2101466031, now seen corresponding path program 1 times [2023-11-19 05:16:30,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:30,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241937154] [2023-11-19 05:16:30,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:30,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:30,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:30,562 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:30,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-19 05:16:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:31,028 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:16:31,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:31,057 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 [2023-11-19 05:16:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-19 05:16:31,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:31,082 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:31,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241937154] [2023-11-19 05:16:31,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241937154] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:31,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:31,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:16:31,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986485928] [2023-11-19 05:16:31,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:31,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:31,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:31,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:31,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:31,085 INFO L87 Difference]: Start difference. First operand 89 states and 118 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:31,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:31,194 INFO L93 Difference]: Finished difference Result 195 states and 260 transitions. [2023-11-19 05:16:31,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:16:31,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 101 [2023-11-19 05:16:31,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:31,196 INFO L225 Difference]: With dead ends: 195 [2023-11-19 05:16:31,196 INFO L226 Difference]: Without dead ends: 109 [2023-11-19 05:16:31,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:31,197 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 24 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:31,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 219 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:16:31,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-19 05:16:31,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 89. [2023-11-19 05:16:31,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.2692307692307692) internal successors, (99), 78 states have internal predecessors, (99), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 05:16:31,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2023-11-19 05:16:31,204 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 101 [2023-11-19 05:16:31,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:31,205 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2023-11-19 05:16:31,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:16:31,205 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2023-11-19 05:16:31,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 05:16:31,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:31,207 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:16:31,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:16:31,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:31,425 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:16:31,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:31,425 INFO L85 PathProgramCache]: Analyzing trace with hash 821602353, now seen corresponding path program 1 times [2023-11-19 05:16:31,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:31,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598522506] [2023-11-19 05:16:31,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:31,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:31,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:31,427 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:31,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2812193-a41d-4751-8977-17eed6f4b901/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 05:16:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:32,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-19 05:16:32,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:32,993 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 [2023-11-19 05:16:33,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2023-11-19 05:16:33,712 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 17 treesize of output 12 [2023-11-19 05:16:33,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2023-11-19 05:16:34,033 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 17 treesize of output 12 [2023-11-19 05:16:34,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2023-11-19 05:16:34,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 [2023-11-19 05:16:43,360 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 119 treesize of output 51 [2023-11-19 05:16:53,656 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-19 05:16:53,656 INFO L327 TraceCheckSpWp]: Computing backward predicates...