./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:54:42,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:54:43,049 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:54:43,055 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:54:43,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:54:43,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:54:43,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:54:43,083 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:54:43,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:54:43,085 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:54:43,085 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:54:43,086 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:54:43,087 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:54:43,087 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:54:43,088 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:54:43,089 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:54:43,089 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:54:43,090 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:54:43,091 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:54:43,091 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:54:43,092 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:54:43,093 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:54:43,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:54:43,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:54:43,095 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:54:43,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:54:43,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:54:43,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:54:43,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:54:43,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:54:43,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:54:43,099 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:54:43,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:54:43,100 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:54:43,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:54:43,102 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:54:43,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:43,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:54:43,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:54:43,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:54:43,105 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:54:43,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:54:43,112 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:54:43,112 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:54:43,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:54:43,113 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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d [2023-11-19 04:54:43,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:54:43,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:54:43,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:54:43,437 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:54:43,439 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:54:43,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i [2023-11-19 04:54:46,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:54:46,766 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:54:46,767 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i [2023-11-19 04:54:46,775 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/data/9b97fc49e/e2aefe928c8d4512b4d178421a39c2e0/FLAG33dc90754 [2023-11-19 04:54:46,789 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/data/9b97fc49e/e2aefe928c8d4512b4d178421a39c2e0 [2023-11-19 04:54:46,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:54:46,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:54:46,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:46,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:54:46,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:54:46,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:46" (1/1) ... [2023-11-19 04:54:46,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2217e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46, skipping insertion in model container [2023-11-19 04:54:46,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:46" (1/1) ... [2023-11-19 04:54:46,832 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:54:46,985 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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2023-11-19 04:54:47,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:47,052 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:54:47,065 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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2023-11-19 04:54:47,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:47,126 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:54:47,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47 WrapperNode [2023-11-19 04:54:47,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:47,128 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:47,128 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:54:47,128 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:54:47,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,204 INFO L138 Inliner]: procedures = 29, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 384 [2023-11-19 04:54:47,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:47,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:54:47,206 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:54:47,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:54:47,215 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,243 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:54:47,263 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:54:47,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:54:47,263 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:54:47,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (1/1) ... [2023-11-19 04:54:47,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:47,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:54:47,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:54:47,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:54:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:54:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 04:54:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:54:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 04:54:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:54:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-19 04:54:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:54:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:54:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:54:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:54:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:54:47,449 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:54:47,451 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:54:48,058 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:54:49,065 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:54:49,066 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:54:49,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:49 BoogieIcfgContainer [2023-11-19 04:54:49,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:54:49,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:54:49,079 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:54:49,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:54:49,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:54:46" (1/3) ... [2023-11-19 04:54:49,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362a6662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:49, skipping insertion in model container [2023-11-19 04:54:49,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:47" (2/3) ... [2023-11-19 04:54:49,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362a6662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:49, skipping insertion in model container [2023-11-19 04:54:49,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:49" (3/3) ... [2023-11-19 04:54:49,089 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-97.i [2023-11-19 04:54:49,110 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:54:49,111 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:54:49,184 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:54:49,194 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;@2b747b28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:54:49,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:54:49,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:54:49,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-19 04:54:49,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:49,214 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:54:49,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:54:49,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:49,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1042918411, now seen corresponding path program 1 times [2023-11-19 04:54:49,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:49,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617765369] [2023-11-19 04:54:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:49,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:54:51,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:54:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:54:52,511 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:54:52,513 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:54:52,514 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:54:52,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:54:52,521 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:54:52,526 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:54:52,568 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 04:54:52,569 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-19 04:54:52,570 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-19 04:54:52,571 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-19 04:54:52,571 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-19 04:54:52,571 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-19 04:54:52,572 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-19 04:54:52,572 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-19 04:54:52,572 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-19 04:54:52,573 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated [2023-11-19 04:54:52,573 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-19 04:54:52,574 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-19 04:54:52,574 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-19 04:54:52,575 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-19 04:54:52,575 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-19 04:54:52,575 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-19 04:54:52,576 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-19 04:54:52,576 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-19 04:54:52,576 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-19 04:54:52,577 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated [2023-11-19 04:54:52,577 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-19 04:54:52,578 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-19 04:54:52,578 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-19 04:54:52,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-19 04:54:52,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-19 04:54:52,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-19 04:54:52,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-19 04:54:52,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-19 04:54:52,581 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-19 04:54:52,581 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-19 04:54:52,581 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-19 04:54:52,582 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-19 04:54:52,582 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-19 04:54:52,582 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-11-19 04:54:52,583 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-19 04:54:52,583 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 04:54:52,583 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-19 04:54:52,583 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-11-19 04:54:52,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-19 04:54:52,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-19 04:54:52,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-19 04:54:52,584 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-19 04:54:52,585 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated [2023-11-19 04:54:52,585 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-19 04:54:52,585 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated [2023-11-19 04:54:52,585 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated [2023-11-19 04:54:52,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:54:52 BoogieIcfgContainer [2023-11-19 04:54:52,605 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:54:52,605 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:54:52,606 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:54:52,606 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:54:52,607 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:49" (3/4) ... [2023-11-19 04:54:52,609 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:54:52,610 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:54:52,612 INFO L158 Benchmark]: Toolchain (without parser) took 5818.49ms. Allocated memory was 178.3MB in the beginning and 270.5MB in the end (delta: 92.3MB). Free memory was 133.6MB in the beginning and 103.1MB in the end (delta: 30.5MB). Peak memory consumption was 124.9MB. Max. memory is 16.1GB. [2023-11-19 04:54:52,613 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 178.3MB. Free memory was 147.7MB in the beginning and 147.6MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:54:52,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.69ms. Allocated memory is still 178.3MB. Free memory was 133.0MB in the beginning and 117.7MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:54:52,614 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.08ms. Allocated memory is still 178.3MB. Free memory was 117.7MB in the beginning and 114.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:54:52,615 INFO L158 Benchmark]: Boogie Preprocessor took 56.50ms. Allocated memory is still 178.3MB. Free memory was 114.2MB in the beginning and 110.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:54:52,616 INFO L158 Benchmark]: RCFGBuilder took 1811.78ms. Allocated memory was 178.3MB in the beginning and 218.1MB in the end (delta: 39.8MB). Free memory was 110.9MB in the beginning and 88.7MB in the end (delta: 22.2MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. [2023-11-19 04:54:52,616 INFO L158 Benchmark]: TraceAbstraction took 3526.80ms. Allocated memory was 218.1MB in the beginning and 270.5MB in the end (delta: 52.4MB). Free memory was 87.6MB in the beginning and 103.1MB in the end (delta: -15.5MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. [2023-11-19 04:54:52,617 INFO L158 Benchmark]: Witness Printer took 5.14ms. Allocated memory is still 270.5MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:54:52,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 178.3MB. Free memory was 147.7MB in the beginning and 147.6MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.69ms. Allocated memory is still 178.3MB. Free memory was 133.0MB in the beginning and 117.7MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.08ms. Allocated memory is still 178.3MB. Free memory was 117.7MB in the beginning and 114.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.50ms. Allocated memory is still 178.3MB. Free memory was 114.2MB in the beginning and 110.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1811.78ms. Allocated memory was 178.3MB in the beginning and 218.1MB in the end (delta: 39.8MB). Free memory was 110.9MB in the beginning and 88.7MB in the end (delta: 22.2MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3526.80ms. Allocated memory was 218.1MB in the beginning and 270.5MB in the end (delta: 52.4MB). Free memory was 87.6MB in the beginning and 103.1MB in the end (delta: -15.5MB). Peak memory consumption was 61.5MB. Max. memory is 16.1GB. * Witness Printer took 5.14ms. Allocated memory is still 270.5MB. Free memory is still 103.1MB. 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~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - 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~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short62 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short63 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 63, overapproximation of bitwiseOr at line 71. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 16, 32, 20113, 100, 100, -1, 16, 1, 0, 1, 10, 256, 32.5, 127.4, 128 }; [L124] isInitial = 1 [L125] FCALL initially() [L126] COND TRUE 1 [L127] FCALL updateLastVariables() [L128] CALL updateVariables() [L90] WrapperStruct00.var_1_7 = __VERIFIER_nondet_short() [L91] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -1) VAL [WrapperStruct00={4:0}, isInitial=1] [L92] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] WrapperStruct00.var_1_8 = __VERIFIER_nondet_short() [L94] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1] [L95] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] WrapperStruct00.var_1_9 = __VERIFIER_nondet_short() [L97] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L98] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 16383) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] WrapperStruct00.var_1_11 = __VERIFIER_nondet_char() [L100] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1] [L101] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1] [L102] WrapperStruct00.var_1_12 = __VERIFIER_nondet_char() [L103] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -31) VAL [WrapperStruct00={4:0}, isInitial=1] [L104] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 32) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 32) VAL [WrapperStruct00={4:0}, isInitial=1] [L105] WrapperStruct00.var_1_15 = __VERIFIER_nondet_uchar() [L106] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L107] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L108] WrapperStruct00.var_1_16 = __VERIFIER_nondet_uchar() [L109] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L109] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L110] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L111] WrapperStruct00.var_1_19 = __VERIFIER_nondet_ushort() [L112] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1] [L112] CALL assume_abort_if_not(WrapperStruct00.var_1_19 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(WrapperStruct00.var_1_19 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L113] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_19 <= 65534) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(WrapperStruct00.var_1_19 <= 65534) VAL [WrapperStruct00={4:0}, isInitial=1] [L114] WrapperStruct00.var_1_21 = __VERIFIER_nondet_float() [L115] EXPR WrapperStruct00.var_1_21 [L115] EXPR WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F [L115] EXPR (WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F) || (WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F ) [L115] EXPR WrapperStruct00.var_1_21 [L115] EXPR WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F [L115] EXPR WrapperStruct00.var_1_21 [L115] EXPR WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F [L115] EXPR (WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F) || (WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L115] CALL assume_abort_if_not((WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F) || (WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not((WrapperStruct00.var_1_21 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_21 <= -1.0e-20F) || (WrapperStruct00.var_1_21 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_21 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L128] RET updateVariables() [L129] CALL step() [L60] EXPR WrapperStruct00.var_1_19 [L60] WrapperStruct00.var_1_18 = WrapperStruct00.var_1_19 [L61] EXPR WrapperStruct00.var_1_21 [L61] WrapperStruct00.var_1_20 = WrapperStruct00.var_1_21 [L62] EXPR WrapperStruct00.var_1_12 [L62] WrapperStruct00.var_1_22 = WrapperStruct00.var_1_12 [L63] EXPR WrapperStruct00.var_1_20 [L63] COND FALSE !(127.5f > WrapperStruct00.var_1_20) [L66] EXPR WrapperStruct00.var_1_20 [L66] EXPR WrapperStruct00.var_1_20 [L66] EXPR (WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15 [L66] WrapperStruct00.var_1_13 = ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15) [L68] EXPR WrapperStruct00.var_1_18 [L68] EXPR WrapperStruct00.var_1_7 [L68] COND FALSE !(WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) [L71] EXPR WrapperStruct00.var_1_22 [L71] EXPR (32 * -25) | WrapperStruct00.var_1_22 [L71] EXPR WrapperStruct00.var_1_11 [L71] COND FALSE !(((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) [L77] WrapperStruct00.var_1_13 [L77] COND TRUE WrapperStruct00.var_1_13 [L78] EXPR WrapperStruct00.var_1_10 [L78] EXPR WrapperStruct00.var_1_22 [L78] COND TRUE WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22 [L79] WrapperStruct00.var_1_13 [L79] COND TRUE WrapperStruct00.var_1_13 [L80] EXPR WrapperStruct00.var_1_7 [L80] EXPR WrapperStruct00.var_1_8 [L80] EXPR WrapperStruct00.var_1_9 [L80] WrapperStruct00.var_1_1 = (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)) [L129] RET step() [L130] CALL, EXPR property() [L120] EXPR WrapperStruct00.var_1_13 [L120] EXPR WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1 [L120] EXPR WrapperStruct00.var_1_10 [L120] EXPR WrapperStruct00.var_1_22 [L120] EXPR (WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8)) [L120] EXPR WrapperStruct00.var_1_13 [L120] EXPR WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) [L120] EXPR WrapperStruct00.var_1_1 [L120] EXPR WrapperStruct00.var_1_7 [L120] EXPR WrapperStruct00.var_1_8 [L120] EXPR WrapperStruct00.var_1_9 [L120] EXPR WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18)) [L120] EXPR (WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8)) [L120] EXPR WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1 [L120] EXPR (WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1)) [L120] EXPR WrapperStruct00.var_1_18 [L120] EXPR WrapperStruct00.var_1_7 [L120] EXPR (WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1) [L120] EXPR WrapperStruct00.var_1_22 [L120] EXPR (32 * -25) | WrapperStruct00.var_1_22 [L120] EXPR WrapperStruct00.var_1_11 [L120] EXPR (((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1 [L120] EXPR WrapperStruct00.var_1_13 [L120] EXPR WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1 [L120] EXPR WrapperStruct00.var_1_10 [L120] EXPR WrapperStruct00.var_1_12 [L120] EXPR WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1 [L120] EXPR (((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1 [L120] EXPR (WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1) [L120] EXPR (WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1)) [L120] EXPR ((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15)))) [L120] EXPR (((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19)) [L120] EXPR ((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21)) [L120] EXPR (((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21))) && (WrapperStruct00.var_1_22 == ((signed short int) WrapperStruct00.var_1_12)) [L120-L121] return (((((WrapperStruct00.var_1_13 ? ((WrapperStruct00.var_1_10 > WrapperStruct00.var_1_22) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_7 - (WrapperStruct00.var_1_8 - WrapperStruct00.var_1_9)))) : (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_18))) : (WrapperStruct00.var_1_1 == ((signed short int) 8))) : 1) && ((WrapperStruct00.var_1_18 == WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_11 + (WrapperStruct00.var_1_12 + -25)))) : ((((32 * -25) | WrapperStruct00.var_1_22) >= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_13 ? (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_12)) : 1) : 1))) && ((127.5f > WrapperStruct00.var_1_20) ? (WrapperStruct00.var_1_13 == ((unsigned char) (WrapperStruct00.var_1_15 && WrapperStruct00.var_1_16))) : (WrapperStruct00.var_1_13 == ((unsigned char) ((WrapperStruct00.var_1_20 >= WrapperStruct00.var_1_20) || WrapperStruct00.var_1_15))))) && (WrapperStruct00.var_1_18 == ((unsigned short int) WrapperStruct00.var_1_19))) && (WrapperStruct00.var_1_20 == ((float) WrapperStruct00.var_1_21))) && (WrapperStruct00.var_1_22 == ((signed short int) WrapperStruct00.var_1_12)) ; [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 1, TraceHistogramMax: 17, 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=43occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 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 04:54:52,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:54:55,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:54:55,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:54:55,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:54:55,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:54:55,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:54:55,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:54:55,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:54:55,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:54:55,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:54:55,577 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:54:55,578 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:54:55,578 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:54:55,580 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:54:55,581 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:54:55,581 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:54:55,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:54:55,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:54:55,583 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:54:55,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:54:55,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:54:55,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:54:55,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:54:55,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:54:55,587 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:54:55,587 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:54:55,588 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:54:55,588 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:54:55,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:54:55,589 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:54:55,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:54:55,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:54:55,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:54:55,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:55,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:54:55,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:54:55,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:54:55,592 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:54:55,593 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:54:55,594 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:54:55,594 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:54:55,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:54:55,595 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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e67445e12651560afd9610d5a103069fc2fc9d028994dc4bd874cfab54748c3d [2023-11-19 04:54:55,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:54:56,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:54:56,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:54:56,016 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:54:56,017 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:54:56,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i [2023-11-19 04:54:59,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:54:59,546 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:54:59,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i [2023-11-19 04:54:59,561 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/data/834aa5e25/388fa5cc7248400ea60824bc7a5b5e27/FLAG02f7e79e0 [2023-11-19 04:54:59,581 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/data/834aa5e25/388fa5cc7248400ea60824bc7a5b5e27 [2023-11-19 04:54:59,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:54:59,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:54:59,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:59,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:54:59,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:54:59,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:59" (1/1) ... [2023-11-19 04:54:59,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53deafae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:59, skipping insertion in model container [2023-11-19 04:54:59,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:59" (1/1) ... [2023-11-19 04:54:59,643 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:54:59,853 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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2023-11-19 04:54:59,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:59,963 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:54:59,986 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_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-97.i[916,929] [2023-11-19 04:55:00,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:00,111 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:55:00,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00 WrapperNode [2023-11-19 04:55:00,112 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:00,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:55:00,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:55:00,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:55:00,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,160 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,232 INFO L138 Inliner]: procedures = 33, calls = 145, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 358 [2023-11-19 04:55:00,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:55:00,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:55:00,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:55:00,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:55:00,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:55:00,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:55:00,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:55:00,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:55:00,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (1/1) ... [2023-11-19 04:55:00,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:55:00,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:55:00,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:55:00,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:55:00,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:55:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 04:55:00,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-19 04:55:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:55:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 04:55:00,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-19 04:55:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 04:55:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-19 04:55:00,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:55:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:55:00,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:55:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:55:00,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 04:55:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-19 04:55:00,563 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:55:00,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:55:01,199 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:55:01,209 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:55:01,209 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:55:01,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:01 BoogieIcfgContainer [2023-11-19 04:55:01,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:55:01,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:55:01,217 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:55:01,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:55:01,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:54:59" (1/3) ... [2023-11-19 04:55:01,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492da9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:01, skipping insertion in model container [2023-11-19 04:55:01,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:00" (2/3) ... [2023-11-19 04:55:01,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492da9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:01, skipping insertion in model container [2023-11-19 04:55:01,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:01" (3/3) ... [2023-11-19 04:55:01,224 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-97.i [2023-11-19 04:55:01,244 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:55:01,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:55:01,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:55:01,307 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;@6a245d9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:55:01,307 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:55:01,312 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 80 states have (on average 1.3875) internal successors, (111), 81 states have internal predecessors, (111), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:55:01,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 04:55:01,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:01,331 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:01,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:01,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:01,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1614699708, now seen corresponding path program 1 times [2023-11-19 04:55:01,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:55:01,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315291779] [2023-11-19 04:55:01,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:01,355 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 04:55:01,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:55:01,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:01,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:01,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:55:01,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2023-11-19 04:55:01,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:55:01,835 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:55:01,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315291779] [2023-11-19 04:55:01,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315291779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:01,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:01,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:55:01,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123174633] [2023-11-19 04:55:01,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:01,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:55:01,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:55:01,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:55:01,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:55:01,903 INFO L87 Difference]: Start difference. First operand has 100 states, 80 states have (on average 1.3875) internal successors, (111), 81 states have internal predecessors, (111), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:55:01,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:01,942 INFO L93 Difference]: Finished difference Result 193 states and 301 transitions. [2023-11-19 04:55:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:55:01,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 134 [2023-11-19 04:55:01,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:01,953 INFO L225 Difference]: With dead ends: 193 [2023-11-19 04:55:01,954 INFO L226 Difference]: Without dead ends: 96 [2023-11-19 04:55:01,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 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 04:55:01,961 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:01,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:55:01,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-19 04:55:02,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-11-19 04:55:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 77 states have (on average 1.3506493506493507) internal successors, (104), 77 states have internal predecessors, (104), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:55:02,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2023-11-19 04:55:02,017 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 134 [2023-11-19 04:55:02,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:02,018 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2023-11-19 04:55:02,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:55:02,018 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2023-11-19 04:55:02,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 04:55:02,022 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:02,022 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:02,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:02,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:02,228 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:02,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:02,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1760716698, now seen corresponding path program 1 times [2023-11-19 04:55:02,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:55:02,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900540631] [2023-11-19 04:55:02,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:02,233 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 04:55:02,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:55:02,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:02,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:02,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:55:02,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 04:55:02,595 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:55:02,595 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:55:02,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900540631] [2023-11-19 04:55:02,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900540631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:02,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:02,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:55:02,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021666927] [2023-11-19 04:55:02,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:02,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:55:02,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:55:02,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:55:02,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:55:02,600 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:55:02,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:02,659 INFO L93 Difference]: Finished difference Result 212 states and 307 transitions. [2023-11-19 04:55:02,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:55:02,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2023-11-19 04:55:02,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:02,663 INFO L225 Difference]: With dead ends: 212 [2023-11-19 04:55:02,663 INFO L226 Difference]: Without dead ends: 119 [2023-11-19 04:55:02,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:55:02,666 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 49 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:02,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 432 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:55:02,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-19 04:55:02,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98. [2023-11-19 04:55:02,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 79 states have internal predecessors, (106), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:55:02,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 140 transitions. [2023-11-19 04:55:02,688 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 140 transitions. Word has length 134 [2023-11-19 04:55:02,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:02,690 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 140 transitions. [2023-11-19 04:55:02,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:55:02,691 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 140 transitions. [2023-11-19 04:55:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-19 04:55:02,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:02,694 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:02,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:55:02,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:02,901 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:02,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:02,902 INFO L85 PathProgramCache]: Analyzing trace with hash 342692940, now seen corresponding path program 1 times [2023-11-19 04:55:02,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:55:02,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412961969] [2023-11-19 04:55:02,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:02,903 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 04:55:02,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:55:02,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:02,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:03,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:55:03,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 04:55:03,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:55:03,277 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:55:03,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412961969] [2023-11-19 04:55:03,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412961969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:03,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:03,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:55:03,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408008586] [2023-11-19 04:55:03,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:03,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:55:03,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:55:03,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:55:03,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:55:03,281 INFO L87 Difference]: Start difference. First operand 98 states and 140 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:55:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:03,992 INFO L93 Difference]: Finished difference Result 295 states and 422 transitions. [2023-11-19 04:55:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:55:03,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2023-11-19 04:55:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:03,997 INFO L225 Difference]: With dead ends: 295 [2023-11-19 04:55:03,997 INFO L226 Difference]: Without dead ends: 200 [2023-11-19 04:55:03,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:55:04,000 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 166 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:04,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 527 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 04:55:04,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-19 04:55:04,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 100. [2023-11-19 04:55:04,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 81 states have internal predecessors, (108), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:55:04,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2023-11-19 04:55:04,020 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 136 [2023-11-19 04:55:04,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:04,022 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2023-11-19 04:55:04,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:55:04,022 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2023-11-19 04:55:04,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-19 04:55:04,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:04,026 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:04,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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)] Ended with exit code 0 [2023-11-19 04:55:04,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:04,232 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:04,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:04,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1268956181, now seen corresponding path program 1 times [2023-11-19 04:55:04,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:55:04,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629151231] [2023-11-19 04:55:04,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:04,235 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 04:55:04,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:55:04,237 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:04,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:04,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:55:04,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:04,576 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 04:55:04,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:55:04,579 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:55:04,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629151231] [2023-11-19 04:55:04,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629151231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:04,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:04,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:55:04,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254428052] [2023-11-19 04:55:04,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:04,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 04:55:04,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:55:04,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 04:55:04,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 04:55:04,589 INFO L87 Difference]: Start difference. First operand 100 states and 142 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:55:04,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:04,630 INFO L93 Difference]: Finished difference Result 209 states and 298 transitions. [2023-11-19 04:55:04,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:55:04,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2023-11-19 04:55:04,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:04,634 INFO L225 Difference]: With dead ends: 209 [2023-11-19 04:55:04,634 INFO L226 Difference]: Without dead ends: 112 [2023-11-19 04:55:04,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:55:04,646 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 21 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:04,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 401 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:55:04,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-19 04:55:04,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 102. [2023-11-19 04:55:04,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 83 states have (on average 1.3253012048192772) internal successors, (110), 83 states have internal predecessors, (110), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:55:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2023-11-19 04:55:04,661 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 144 transitions. Word has length 136 [2023-11-19 04:55:04,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:04,662 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 144 transitions. [2023-11-19 04:55:04,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:55:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 144 transitions. [2023-11-19 04:55:04,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-19 04:55:04,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:04,666 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:04,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:04,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:04,873 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:04,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:04,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1949014551, now seen corresponding path program 1 times [2023-11-19 04:55:04,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:55:04,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618155875] [2023-11-19 04:55:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:04,876 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 04:55:04,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:55:04,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:04,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:05,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:55:05,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:05,174 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 04:55:05,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:55:05,174 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:55:05,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618155875] [2023-11-19 04:55:05,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618155875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:05,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:05,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:55:05,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087631486] [2023-11-19 04:55:05,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:05,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:55:05,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:55:05,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:55:05,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:55:05,181 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:55:05,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:05,246 INFO L93 Difference]: Finished difference Result 214 states and 303 transitions. [2023-11-19 04:55:05,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:55:05,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2023-11-19 04:55:05,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:05,253 INFO L225 Difference]: With dead ends: 214 [2023-11-19 04:55:05,253 INFO L226 Difference]: Without dead ends: 115 [2023-11-19 04:55:05,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 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 04:55:05,257 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 24 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:05,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 529 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:55:05,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-19 04:55:05,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 104. [2023-11-19 04:55:05,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.3176470588235294) internal successors, (112), 85 states have internal predecessors, (112), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:55:05,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 146 transitions. [2023-11-19 04:55:05,281 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 146 transitions. Word has length 136 [2023-11-19 04:55:05,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:05,282 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 146 transitions. [2023-11-19 04:55:05,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:55:05,282 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 146 transitions. [2023-11-19 04:55:05,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-19 04:55:05,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:05,285 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:05,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:05,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:05,486 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:05,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:05,487 INFO L85 PathProgramCache]: Analyzing trace with hash -570945383, now seen corresponding path program 1 times [2023-11-19 04:55:05,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:55:05,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282314322] [2023-11-19 04:55:05,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:05,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:55:05,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:55:05,489 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:05,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:05,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:55:05,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:05,872 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 14 treesize of output 10 [2023-11-19 04:55:05,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-11-19 04:55:05,907 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 04:55:05,918 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-19 04:55:05,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:55:05,919 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:55:05,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282314322] [2023-11-19 04:55:05,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282314322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:05,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:05,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:55:05,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392958395] [2023-11-19 04:55:05,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:05,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:55:05,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:55:05,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:55:05,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:55:05,922 INFO L87 Difference]: Start difference. First operand 104 states and 146 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:55:06,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:06,481 INFO L93 Difference]: Finished difference Result 306 states and 432 transitions. [2023-11-19 04:55:06,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:55:06,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2023-11-19 04:55:06,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:06,484 INFO L225 Difference]: With dead ends: 306 [2023-11-19 04:55:06,484 INFO L226 Difference]: Without dead ends: 205 [2023-11-19 04:55:06,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:55:06,486 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 118 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:06,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 437 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 04:55:06,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-11-19 04:55:06,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 111. [2023-11-19 04:55:06,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 92 states have (on average 1.326086956521739) internal successors, (122), 92 states have internal predecessors, (122), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:55:06,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 156 transitions. [2023-11-19 04:55:06,499 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 156 transitions. Word has length 136 [2023-11-19 04:55:06,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:06,500 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 156 transitions. [2023-11-19 04:55:06,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-19 04:55:06,500 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 156 transitions. [2023-11-19 04:55:06,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-19 04:55:06,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:06,503 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:06,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:55:06,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:06,710 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:06,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:06,711 INFO L85 PathProgramCache]: Analyzing trace with hash -704958889, now seen corresponding path program 1 times [2023-11-19 04:55:06,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:55:06,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084948808] [2023-11-19 04:55:06,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:06,712 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 04:55:06,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:55:06,713 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:06,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:07,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 04:55:07,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:07,070 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 14 treesize of output 10 [2023-11-19 04:55:07,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2023-11-19 04:55:07,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:07,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 37 [2023-11-19 04:55:08,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:08,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 37 [2023-11-19 04:55:08,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:08,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 37 [2023-11-19 04:55:08,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:08,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 47 [2023-11-19 04:55:08,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:08,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 50 [2023-11-19 04:55:08,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:08,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 27 [2023-11-19 04:55:08,741 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 294 proven. 30 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 04:55:08,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:55:09,312 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-19 04:55:09,312 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:55:09,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084948808] [2023-11-19 04:55:09,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084948808] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:55:09,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1616194748] [2023-11-19 04:55:09,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:09,313 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:55:09,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:55:09,322 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:55:09,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 04:55:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:10,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 04:55:10,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:11,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 59 [2023-11-19 04:55:11,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:11,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 89 [2023-11-19 04:55:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 04:55:11,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:55:11,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1616194748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:11,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-19 04:55:11,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15, 10] total 29 [2023-11-19 04:55:11,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908519981] [2023-11-19 04:55:11,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:11,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:55:11,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:55:11,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:55:11,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=674, Unknown=0, NotChecked=0, Total=812 [2023-11-19 04:55:11,864 INFO L87 Difference]: Start difference. First operand 111 states and 156 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:55:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:14,726 INFO L93 Difference]: Finished difference Result 319 states and 450 transitions. [2023-11-19 04:55:14,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 04:55:14,727 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2023-11-19 04:55:14,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:14,730 INFO L225 Difference]: With dead ends: 319 [2023-11-19 04:55:14,730 INFO L226 Difference]: Without dead ends: 211 [2023-11-19 04:55:14,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 376 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=151, Invalid=779, Unknown=0, NotChecked=0, Total=930 [2023-11-19 04:55:14,732 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 201 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:14,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 351 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-19 04:55:14,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-19 04:55:14,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 204. [2023-11-19 04:55:14,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 167 states have (on average 1.3173652694610778) internal successors, (220), 168 states have internal predecessors, (220), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 04:55:14,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 288 transitions. [2023-11-19 04:55:14,753 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 288 transitions. Word has length 136 [2023-11-19 04:55:14,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:14,754 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 288 transitions. [2023-11-19 04:55:14,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 04:55:14,755 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 288 transitions. [2023-11-19 04:55:14,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-19 04:55:14,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:14,757 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:55:14,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-19 04:55:14,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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)] Forceful destruction successful, exit code 0 [2023-11-19 04:55:15,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:15,164 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:15,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:15,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1065815440, now seen corresponding path program 1 times [2023-11-19 04:55:15,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:55:15,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914666956] [2023-11-19 04:55:15,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:15,165 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 04:55:15,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:55:15,167 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:15,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/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 04:55:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:15,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 04:55:15,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:15,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 04:55:15,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2023-11-19 04:55:15,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:15,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2023-11-19 04:55:16,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:16,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 44 [2023-11-19 04:55:16,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:16,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 57 [2023-11-19 04:55:16,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:16,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 60 [2023-11-19 04:55:16,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:16,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 28 [2023-11-19 04:55:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 238 proven. 18 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-19 04:55:16,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:55:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 72 proven. 18 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-19 04:55:16,905 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:55:16,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914666956] [2023-11-19 04:55:16,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914666956] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:55:16,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1294511860] [2023-11-19 04:55:16,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:16,906 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:55:16,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 04:55:16,907 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:55:16,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 04:55:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:17,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-19 04:55:17,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:17,747 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 8 treesize of output 4 [2023-11-19 04:55:17,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 04:55:18,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-11-19 04:55:18,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-11-19 04:55:18,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:18,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 34 [2023-11-19 04:55:18,894 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:18,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 45 [2023-11-19 04:55:19,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:19,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 48 [2023-11-19 04:55:19,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:19,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 24 [2023-11-19 04:55:19,075 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 238 proven. 18 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-19 04:55:19,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:55:19,329 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 72 proven. 18 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-19 04:55:19,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1294511860] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:55:19,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340133141] [2023-11-19 04:55:19,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:19,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:55:19,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:55:19,336 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:55:19,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b2487a5-33ca-4ec3-b896-74bba1cdcff7/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 04:55:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:19,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-19 04:55:19,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:20,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2023-11-19 04:55:21,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:21,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 53 [2023-11-19 04:55:22,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:22,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 56 [2023-11-19 04:55:22,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:22,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 67 [2023-11-19 04:55:23,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:23,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 80 [2023-11-19 04:55:23,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:23,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 89 treesize of output 73 [2023-11-19 04:55:23,808 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:55:23,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 32 [2023-11-19 04:55:23,819 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 306 proven. 36 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-11-19 04:55:23,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:55:24,605 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 72 proven. 18 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-19 04:55:24,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340133141] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:55:24,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 04:55:24,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 14, 10, 24, 11] total 59 [2023-11-19 04:55:24,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152696869] [2023-11-19 04:55:24,610 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 04:55:24,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-11-19 04:55:24,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:55:24,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-11-19 04:55:24,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=585, Invalid=2837, Unknown=0, NotChecked=0, Total=3422 [2023-11-19 04:55:24,618 INFO L87 Difference]: Start difference. First operand 204 states and 288 transitions. Second operand has 59 states, 47 states have (on average 3.6595744680851063) internal successors, (172), 52 states have internal predecessors, (172), 19 states have call successors, (51), 10 states have call predecessors, (51), 14 states have return successors, (51), 13 states have call predecessors, (51), 19 states have call successors, (51)