./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX --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 6d60c41fdcdaad38dc038867a7c9992a8ab8f45b7eb867ab47c18062a0edd8d7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:59:19,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:59:19,231 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:59:19,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:59:19,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:59:19,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:59:19,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:59:19,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:59:19,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:59:19,267 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:59:19,267 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:59:19,268 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:59:19,269 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:59:19,269 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:59:19,270 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:59:19,270 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:59:19,271 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:59:19,271 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:59:19,272 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:59:19,273 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:59:19,273 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:59:19,277 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:59:19,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:59:19,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:59:19,279 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:59:19,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:59:19,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:59:19,281 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:59:19,281 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:59:19,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:59:19,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:59:19,282 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:59:19,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:59:19,283 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:59:19,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:59:19,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:59:19,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:59:19,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:59:19,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:59:19,290 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:59:19,290 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:59:19,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:59:19,292 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:59:19,292 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:59:19,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:59:19,293 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_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d60c41fdcdaad38dc038867a7c9992a8ab8f45b7eb867ab47c18062a0edd8d7 [2023-11-12 00:59:19,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:59:19,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:59:19,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:59:19,618 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:59:19,619 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:59:19,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i [2023-11-12 00:59:22,935 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:59:23,224 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:59:23,224 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i [2023-11-12 00:59:23,254 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/data/d2956c401/9a76dc838a8048c1ac9cddd22251adb2/FLAG907be0cb1 [2023-11-12 00:59:23,273 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/data/d2956c401/9a76dc838a8048c1ac9cddd22251adb2 [2023-11-12 00:59:23,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:59:23,279 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:59:23,281 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:59:23,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:59:23,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:59:23,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727bc98f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23, skipping insertion in model container [2023-11-12 00:59:23,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,349 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:59:23,512 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_41c520c0-dbc1-4eb2-a4ff-41a849878e73/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i[919,932] [2023-11-12 00:59:23,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:59:23,632 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:59:23,646 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_41c520c0-dbc1-4eb2-a4ff-41a849878e73/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i[919,932] [2023-11-12 00:59:23,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:59:23,725 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:59:23,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23 WrapperNode [2023-11-12 00:59:23,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:59:23,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:59:23,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:59:23,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:59:23,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,830 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 201 [2023-11-12 00:59:23,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:59:23,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:59:23,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:59:23,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:59:23,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,859 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:59:23,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:59:23,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:59:23,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:59:23,902 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (1/1) ... [2023-11-12 00:59:23,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:59:23,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:59:23,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:59:24,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:59:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:59:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:59:24,019 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:59:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:59:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:59:24,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:59:24,149 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:59:24,157 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:59:24,721 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:59:25,080 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:59:25,081 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:59:25,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:59:25 BoogieIcfgContainer [2023-11-12 00:59:25,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:59:25,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:59:25,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:59:25,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:59:25,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:59:23" (1/3) ... [2023-11-12 00:59:25,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339369ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:59:25, skipping insertion in model container [2023-11-12 00:59:25,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:23" (2/3) ... [2023-11-12 00:59:25,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339369ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:59:25, skipping insertion in model container [2023-11-12 00:59:25,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:59:25" (3/3) ... [2023-11-12 00:59:25,101 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i [2023-11-12 00:59:25,124 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:59:25,124 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:59:25,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:59:25,204 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;@2d3d18b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:59:25,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:59:25,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 00:59:25,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-12 00:59:25,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:25,218 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:59:25,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:25,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:25,224 INFO L85 PathProgramCache]: Analyzing trace with hash 2087966352, now seen corresponding path program 1 times [2023-11-12 00:59:25,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:59:25,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534300161] [2023-11-12 00:59:25,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:25,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:59:25,478 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:59:25,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883586383] [2023-11-12 00:59:25,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:25,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:59:25,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:59:25,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:59:25,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:59:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:59:26,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:59:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:59:26,334 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:59:26,338 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:59:26,339 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:59:26,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:59:26,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:59:26,557 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:59:26,566 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:59:26,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:59:26 BoogieIcfgContainer [2023-11-12 00:59:26,730 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:59:26,731 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:59:26,731 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:59:26,731 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:59:26,732 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:59:25" (3/4) ... [2023-11-12 00:59:26,736 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:59:26,737 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:59:26,739 INFO L158 Benchmark]: Toolchain (without parser) took 3459.95ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 92.6MB in the beginning and 123.5MB in the end (delta: -30.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:59:26,740 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:59:26,741 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.95ms. Allocated memory is still 138.4MB. Free memory was 92.6MB in the beginning and 77.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:59:26,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.63ms. Allocated memory is still 138.4MB. Free memory was 77.3MB in the beginning and 72.3MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:59:26,749 INFO L158 Benchmark]: Boogie Preprocessor took 68.63ms. Allocated memory is still 138.4MB. Free memory was 72.3MB in the beginning and 69.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:59:26,750 INFO L158 Benchmark]: RCFGBuilder took 1183.31ms. Allocated memory is still 138.4MB. Free memory was 69.6MB in the beginning and 90.7MB in the end (delta: -21.1MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-11-12 00:59:26,751 INFO L158 Benchmark]: TraceAbstraction took 1639.94ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 90.0MB in the beginning and 123.5MB in the end (delta: -33.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-12 00:59:26,752 INFO L158 Benchmark]: Witness Printer took 6.73ms. Allocated memory is still 167.8MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:59:26,762 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.95ms. Allocated memory is still 138.4MB. Free memory was 92.6MB in the beginning and 77.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.63ms. Allocated memory is still 138.4MB. Free memory was 77.3MB in the beginning and 72.3MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.63ms. Allocated memory is still 138.4MB. Free memory was 72.3MB in the beginning and 69.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1183.31ms. Allocated memory is still 138.4MB. Free memory was 69.6MB in the beginning and 90.7MB in the end (delta: -21.1MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1639.94ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 90.0MB in the beginning and 123.5MB in the end (delta: -33.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 6.73ms. Allocated memory is still 167.8MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 57, overapproximation of bitwiseOr at line 112, overapproximation of someBinaryArithmeticDOUBLEoperation at line 59. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 1; [L23] unsigned char var_1_4 = 25; [L24] unsigned short int var_1_5 = 0; [L25] unsigned short int var_1_6 = 62100; [L26] unsigned short int var_1_7 = 27651; [L27] double var_1_8 = 128.9; [L28] double var_1_10 = 16.5; [L29] double var_1_11 = 25.5; [L30] double var_1_12 = 199.75; [L31] unsigned char var_1_13 = 2; [L32] unsigned char var_1_14 = 1; [L33] unsigned char var_1_15 = 1; [L34] unsigned char var_1_16 = 1; [L35] unsigned short int var_1_17 = 32; [L36] unsigned char var_1_18 = 1; [L37] unsigned long int var_1_19 = 1; [L38] unsigned short int var_1_20 = 25; [L39] signed long int var_1_24 = -25; [L40] signed short int var_1_25 = -100; [L41] unsigned char var_1_28 = 1; [L42] unsigned long int var_1_30 = 0; [L43] unsigned char var_1_31 = 64; [L44] unsigned char var_1_33 = 128; [L45] unsigned char var_1_34 = 100; [L46] unsigned char var_1_35 = 4; [L47] unsigned short int last_1_var_1_5 = 0; [L48] unsigned char last_1_var_1_15 = 1; [L49] unsigned char last_1_var_1_18 = 1; [L50] unsigned long int last_1_var_1_19 = 1; [L189] isInitial = 1 [L190] FCALL initially() [L191] COND TRUE 1 [L192] CALL updateLastVariables() [L179] last_1_var_1_5 = var_1_5 [L180] last_1_var_1_15 = var_1_15 [L181] last_1_var_1_18 = var_1_18 [L182] last_1_var_1_19 = var_1_19 [L192] RET updateLastVariables() [L193] CALL updateVariables() [L146] var_1_4 = __VERIFIER_nondet_uchar() [L147] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10] [L148] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L148] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10] [L149] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=62100, var_1_7=27651, var_1_8=1289/10] [L150] var_1_6 = __VERIFIER_nondet_ushort() [L151] CALL assume_abort_if_not(var_1_6 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=27651, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_6 >= 32767) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=27651, var_1_8=1289/10] [L152] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=27651, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=27651, var_1_8=1289/10] [L153] var_1_7 = __VERIFIER_nondet_ushort() [L154] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L155] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=33/2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L156] var_1_10 = __VERIFIER_nondet_double() [L157] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=51/2, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L158] var_1_11 = __VERIFIER_nondet_double() [L159] CALL assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not((var_1_11 >= -461168.6018427382800e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=799/4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L160] var_1_12 = __VERIFIER_nondet_double() [L161] CALL assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not((var_1_12 >= -461168.6018427382800e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L162] var_1_14 = __VERIFIER_nondet_uchar() [L163] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L163] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L164] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L165] var_1_16 = __VERIFIER_nondet_uchar() [L166] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L167] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=128, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L168] var_1_33 = __VERIFIER_nondet_uchar() [L169] CALL assume_abort_if_not(var_1_33 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_33 >= 127) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L170] CALL assume_abort_if_not(var_1_33 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L170] RET assume_abort_if_not(var_1_33 <= 254) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=100, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L171] var_1_34 = __VERIFIER_nondet_uchar() [L172] CALL assume_abort_if_not(var_1_34 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=63, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L172] RET assume_abort_if_not(var_1_34 >= 63) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=63, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L173] CALL assume_abort_if_not(var_1_34 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=63, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L173] RET assume_abort_if_not(var_1_34 <= 127) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=63, var_1_35=4, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L174] var_1_35 = __VERIFIER_nondet_uchar() [L175] CALL assume_abort_if_not(var_1_35 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=63, var_1_35=0, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L175] RET assume_abort_if_not(var_1_35 >= 0) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=63, var_1_35=0, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L176] CALL assume_abort_if_not(var_1_35 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=63, var_1_35=0, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L20] COND FALSE !(!cond) [L176] RET assume_abort_if_not(var_1_35 <= 63) VAL [isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=2, var_1_14=33, var_1_15=1, var_1_16=1, var_1_17=32, var_1_18=1, var_1_19=1, var_1_1=1, var_1_20=25, var_1_24=-25, var_1_25=-100, var_1_28=1, var_1_30=0, var_1_31=64, var_1_33=127, var_1_34=63, var_1_35=0, var_1_4=2, var_1_5=0, var_1_6=32767, var_1_7=32767, var_1_8=1289/10] [L193] RET updateVariables() [L194] CALL step() [L54] unsigned char stepLocal_3 = last_1_var_1_19 < var_1_6; [L55] COND TRUE \read(last_1_var_1_18) [L56] COND TRUE (! last_1_var_1_15) || stepLocal_3 [L57] var_1_8 = ((((127.25) > (var_1_10)) ? (127.25) : (var_1_10))) [L64] COND TRUE var_1_12 != var_1_8 [L65] var_1_15 = (! var_1_16) [L69] var_1_17 = var_1_4 [L70] var_1_18 = var_1_16 [L71] var_1_19 = var_1_4 [L72] unsigned short int stepLocal_1 = var_1_17; [L73] unsigned char stepLocal_0 = var_1_17 != (16 / var_1_4); [L74] COND FALSE !(stepLocal_0 && var_1_15) [L85] var_1_1 = var_1_17 [L87] unsigned short int stepLocal_2 = var_1_17; [L88] COND FALSE !(stepLocal_2 < last_1_var_1_5) [L91] COND TRUE ! var_1_15 [L92] var_1_5 = ((((last_1_var_1_5) > ((var_1_7 + var_1_4))) ? (last_1_var_1_5) : ((var_1_7 + var_1_4)))) [L95] unsigned short int stepLocal_5 = var_1_6; [L96] unsigned short int stepLocal_4 = var_1_5; [L97] COND TRUE stepLocal_4 != ((var_1_6 / var_1_4) * ((((var_1_5) > (var_1_19)) ? (var_1_5) : (var_1_19)))) [L98] COND FALSE !(var_1_5 <= stepLocal_5) [L101] var_1_13 = var_1_14 [L106] COND FALSE !(var_1_12 == var_1_10) [L109] COND TRUE ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))) > ((((128.5f) < (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) ? (128.5f) : (((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8)))))) [L110] var_1_24 = ((((var_1_4) > (var_1_4)) ? (var_1_4) : (var_1_4))) [L112] EXPR var_1_14 | var_1_6 [L112] COND TRUE (var_1_4 / var_1_6) < (var_1_14 | var_1_6) [L113] COND TRUE (- var_1_12) >= 256.75f [L114] var_1_25 = var_1_4 [L119] EXPR var_1_6 ^ (~ var_1_17) [L119] COND FALSE !((var_1_6 ^ (~ var_1_17)) >= var_1_17) [L122] COND TRUE var_1_19 < var_1_6 [L123] COND TRUE var_1_12 <= var_1_12 [L124] var_1_30 = var_1_6 [L127] COND FALSE !(var_1_4 < ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4)))) [L142] var_1_31 = var_1_14 [L194] RET step() [L195] CALL, EXPR property() [L185-L186] return (((((((((var_1_17 != (16 / var_1_4)) && var_1_15) ? ((var_1_17 > var_1_4) ? (var_1_1 == ((unsigned short int) (var_1_4 + var_1_17))) : (var_1_15 ? (var_1_1 == ((unsigned short int) var_1_17)) : (var_1_1 == ((unsigned short int) var_1_4)))) : (var_1_1 == ((unsigned short int) var_1_17))) && ((var_1_17 < last_1_var_1_5) ? (var_1_5 == ((unsigned short int) (var_1_6 - (var_1_7 - last_1_var_1_5)))) : ((! var_1_15) ? (var_1_5 == ((unsigned short int) ((((last_1_var_1_5) > ((var_1_7 + var_1_4))) ? (last_1_var_1_5) : ((var_1_7 + var_1_4)))))) : 1))) && (last_1_var_1_18 ? (((! last_1_var_1_15) || (last_1_var_1_19 < var_1_6)) ? (var_1_8 == ((double) ((((127.25) > (var_1_10)) ? (127.25) : (var_1_10))))) : (var_1_8 == ((double) (var_1_11 + var_1_12)))) : (var_1_8 == ((double) var_1_11)))) && ((var_1_5 != ((var_1_6 / var_1_4) * ((((var_1_5) > (var_1_19)) ? (var_1_5) : (var_1_19))))) ? ((var_1_5 <= var_1_6) ? (var_1_13 == ((unsigned char) 32)) : (var_1_13 == ((unsigned char) var_1_14))) : (var_1_13 == ((unsigned char) var_1_14)))) && ((var_1_12 != var_1_8) ? (var_1_15 == ((unsigned char) (! var_1_16))) : (var_1_15 == ((unsigned char) var_1_16)))) && (var_1_17 == ((unsigned short int) var_1_4))) && (var_1_18 == ((unsigned char) var_1_16))) && (var_1_19 == ((unsigned long int) var_1_4)) ; [L195] RET, EXPR property() [L195] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=33, var_1_14=33, var_1_15=0, var_1_16=1, var_1_17=2, var_1_18=1, var_1_19=2, var_1_1=2, var_1_20=25, var_1_24=2, var_1_25=2, var_1_28=1, var_1_30=32767, var_1_31=33, var_1_33=127, var_1_34=63, var_1_35=0, var_1_4=2, var_1_5=32769, var_1_6=32767, var_1_7=32767, var_1_8=509/4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_15=1, last_1_var_1_18=1, last_1_var_1_19=1, last_1_var_1_5=0, var_1_10=2, var_1_11=3, var_1_12=4, var_1_13=33, var_1_14=33, var_1_15=0, var_1_16=1, var_1_17=2, var_1_18=1, var_1_19=2, var_1_1=2, var_1_20=25, var_1_24=2, var_1_25=2, var_1_28=1, var_1_30=32767, var_1_31=33, var_1_33=127, var_1_34=63, var_1_35=0, var_1_4=2, var_1_5=32769, var_1_6=32767, var_1_7=32767, var_1_8=509/4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 20, 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=40occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 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 [2023-11-12 00:59:26,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/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_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX --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 6d60c41fdcdaad38dc038867a7c9992a8ab8f45b7eb867ab47c18062a0edd8d7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:59:29,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:59:29,658 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:59:29,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:59:29,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:59:29,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:59:29,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:59:29,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:59:29,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:59:29,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:59:29,734 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:59:29,735 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:59:29,735 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:59:29,738 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:59:29,738 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:59:29,739 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:59:29,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:59:29,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:59:29,742 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:59:29,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:59:29,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:59:29,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:59:29,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:59:29,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:59:29,748 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:59:29,749 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:59:29,749 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:59:29,750 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:59:29,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:59:29,751 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:59:29,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:59:29,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:59:29,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:59:29,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:59:29,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:59:29,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:59:29,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:59:29,756 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:59:29,757 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:59:29,758 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:59:29,758 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:59:29,759 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:59:29,759 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_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d60c41fdcdaad38dc038867a7c9992a8ab8f45b7eb867ab47c18062a0edd8d7 [2023-11-12 00:59:30,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:59:30,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:59:30,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:59:30,270 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:59:30,270 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:59:30,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i [2023-11-12 00:59:33,607 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:59:33,913 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:59:33,914 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i [2023-11-12 00:59:33,939 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/data/ea37cbf36/3bd3fb55224142eb882c655c100b8ad9/FLAG34ee84c6a [2023-11-12 00:59:33,954 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/data/ea37cbf36/3bd3fb55224142eb882c655c100b8ad9 [2023-11-12 00:59:33,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:59:33,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:59:33,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:59:33,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:59:33,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:59:33,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:59:33" (1/1) ... [2023-11-12 00:59:33,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651bcb77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:33, skipping insertion in model container [2023-11-12 00:59:33,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:59:33" (1/1) ... [2023-11-12 00:59:34,001 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:59:34,196 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_41c520c0-dbc1-4eb2-a4ff-41a849878e73/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i[919,932] [2023-11-12 00:59:34,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:59:34,369 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:59:34,391 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_41c520c0-dbc1-4eb2-a4ff-41a849878e73/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i[919,932] [2023-11-12 00:59:34,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:59:34,481 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:59:34,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34 WrapperNode [2023-11-12 00:59:34,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:59:34,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:59:34,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:59:34,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:59:34,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,574 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 175 [2023-11-12 00:59:34,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:59:34,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:59:34,577 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:59:34,577 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:59:34,587 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,603 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,659 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:59:34,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:59:34,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:59:34,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:59:34,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (1/1) ... [2023-11-12 00:59:34,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:59:34,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:59:34,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:59:34,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:59:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:59:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:59:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:59:34,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:59:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:59:34,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:59:34,909 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:59:34,911 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:59:36,138 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:59:36,159 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:59:36,161 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:59:36,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:59:36 BoogieIcfgContainer [2023-11-12 00:59:36,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:59:36,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:59:36,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:59:36,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:59:36,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:59:33" (1/3) ... [2023-11-12 00:59:36,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62688e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:59:36, skipping insertion in model container [2023-11-12 00:59:36,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:59:34" (2/3) ... [2023-11-12 00:59:36,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62688e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:59:36, skipping insertion in model container [2023-11-12 00:59:36,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:59:36" (3/3) ... [2023-11-12 00:59:36,199 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-59.i [2023-11-12 00:59:36,221 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:59:36,221 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:59:36,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:59:36,288 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;@22cd869a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:59:36,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:59:36,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 52 states have internal predecessors, (77), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 00:59:36,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 00:59:36,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:36,311 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:59:36,312 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:36,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:36,318 INFO L85 PathProgramCache]: Analyzing trace with hash 130872288, now seen corresponding path program 1 times [2023-11-12 00:59:36,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:59:36,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058045632] [2023-11-12 00:59:36,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:36,336 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 [2023-11-12 00:59:36,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:59:36,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:59:36,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:59:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:36,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:59:36,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:59:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-11-12 00:59:36,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:59:36,992 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:59:36,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058045632] [2023-11-12 00:59:36,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058045632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:59:36,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:59:36,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:59:36,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762325534] [2023-11-12 00:59:36,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:59:37,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:59:37,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:59:37,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:59:37,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:59:37,047 INFO L87 Difference]: Start difference. First operand has 74 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 52 states have internal predecessors, (77), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 00:59:37,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:59:37,119 INFO L93 Difference]: Finished difference Result 138 states and 242 transitions. [2023-11-12 00:59:37,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:59:37,121 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 134 [2023-11-12 00:59:37,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:59:37,132 INFO L225 Difference]: With dead ends: 138 [2023-11-12 00:59:37,132 INFO L226 Difference]: Without dead ends: 67 [2023-11-12 00:59:37,137 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 [2023-11-12 00:59:37,141 INFO L413 NwaCegarLoop]: 102 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, 102 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 [2023-11-12 00:59:37,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:59:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-12 00:59:37,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-12 00:59:37,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 45 states have internal predecessors, (62), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-12 00:59:37,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 102 transitions. [2023-11-12 00:59:37,209 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 102 transitions. Word has length 134 [2023-11-12 00:59:37,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:59:37,209 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 102 transitions. [2023-11-12 00:59:37,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-12 00:59:37,211 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 102 transitions. [2023-11-12 00:59:37,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-12 00:59:37,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:37,224 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:59:37,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:59:37,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:59:37,438 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:37,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:37,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1876890262, now seen corresponding path program 1 times [2023-11-12 00:59:37,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:59:37,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318109950] [2023-11-12 00:59:37,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:37,440 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 [2023-11-12 00:59:37,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:59:37,442 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:59:37,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:59:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:37,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:59:37,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:59:38,333 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-12 00:59:38,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:59:38,333 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:59:38,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318109950] [2023-11-12 00:59:38,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318109950] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:59:38,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:59:38,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:59:38,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667447788] [2023-11-12 00:59:38,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:59:38,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:59:38,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:59:38,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:59:38,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:59:38,339 INFO L87 Difference]: Start difference. First operand 67 states and 102 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:59:40,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:59:40,085 INFO L93 Difference]: Finished difference Result 196 states and 301 transitions. [2023-11-12 00:59:40,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:59:40,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 134 [2023-11-12 00:59:40,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:59:40,106 INFO L225 Difference]: With dead ends: 196 [2023-11-12 00:59:40,107 INFO L226 Difference]: Without dead ends: 132 [2023-11-12 00:59:40,108 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 [2023-11-12 00:59:40,110 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 65 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:59:40,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 290 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-12 00:59:40,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-12 00:59:40,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 105. [2023-11-12 00:59:40,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 62 states have (on average 1.2741935483870968) internal successors, (79), 62 states have internal predecessors, (79), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-12 00:59:40,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 159 transitions. [2023-11-12 00:59:40,156 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 159 transitions. Word has length 134 [2023-11-12 00:59:40,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:59:40,157 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 159 transitions. [2023-11-12 00:59:40,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:59:40,158 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 159 transitions. [2023-11-12 00:59:40,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-12 00:59:40,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:40,160 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:59:40,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:59:40,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:59:40,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:40,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:40,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1303864671, now seen corresponding path program 1 times [2023-11-12 00:59:40,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:59:40,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019291019] [2023-11-12 00:59:40,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:40,376 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 [2023-11-12 00:59:40,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:59:40,378 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:59:40,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:59:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:40,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:59:40,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:59:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-12 00:59:41,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:59:41,222 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:59:41,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019291019] [2023-11-12 00:59:41,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019291019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:59:41,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:59:41,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:59:41,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081984385] [2023-11-12 00:59:41,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:59:41,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:59:41,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:59:41,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:59:41,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:59:41,226 INFO L87 Difference]: Start difference. First operand 105 states and 159 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:59:42,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:59:42,883 INFO L93 Difference]: Finished difference Result 251 states and 383 transitions. [2023-11-12 00:59:42,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:59:42,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 135 [2023-11-12 00:59:42,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:59:42,907 INFO L225 Difference]: With dead ends: 251 [2023-11-12 00:59:42,907 INFO L226 Difference]: Without dead ends: 187 [2023-11-12 00:59:42,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:59:42,910 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 94 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:59:42,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 302 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 00:59:42,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-12 00:59:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 167. [2023-11-12 00:59:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.3106796116504855) internal successors, (135), 103 states have internal predecessors, (135), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-12 00:59:42,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 255 transitions. [2023-11-12 00:59:42,971 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 255 transitions. Word has length 135 [2023-11-12 00:59:42,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:59:42,974 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 255 transitions. [2023-11-12 00:59:42,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-12 00:59:42,974 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 255 transitions. [2023-11-12 00:59:42,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-12 00:59:42,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:42,979 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:59:43,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:59:43,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:59:43,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:43,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:43,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1567346565, now seen corresponding path program 1 times [2023-11-12 00:59:43,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:59:43,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001135776] [2023-11-12 00:59:43,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:43,196 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 [2023-11-12 00:59:43,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:59:43,203 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:59:43,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:59:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:43,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:59:43,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:59:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 388 proven. 36 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-12 00:59:44,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:59:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-12 00:59:44,572 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:59:44,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001135776] [2023-11-12 00:59:44,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001135776] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:59:44,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1269105575] [2023-11-12 00:59:44,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:44,578 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:59:44,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:59:44,581 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:59:44,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-12 00:59:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:45,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:59:45,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:59:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 379 proven. 21 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-12 00:59:45,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:59:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-12 00:59:46,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1269105575] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:59:46,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294773852] [2023-11-12 00:59:46,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:46,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:59:46,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:59:46,090 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:59:46,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 00:59:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:46,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:59:46,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:59:46,601 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 379 proven. 21 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-12 00:59:46,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:59:46,831 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-11-12 00:59:46,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294773852] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:59:46,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-12 00:59:46,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6, 6, 6, 6] total 12 [2023-11-12 00:59:46,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564415090] [2023-11-12 00:59:46,833 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-12 00:59:46,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 00:59:46,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:59:46,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 00:59:46,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:59:46,840 INFO L87 Difference]: Start difference. First operand 167 states and 255 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 3 states have call successors, (33), 3 states have call predecessors, (33), 6 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-11-12 00:59:49,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:59:49,314 INFO L93 Difference]: Finished difference Result 542 states and 789 transitions. [2023-11-12 00:59:49,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-12 00:59:49,320 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 3 states have call successors, (33), 3 states have call predecessors, (33), 6 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 136 [2023-11-12 00:59:49,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:59:49,330 INFO L225 Difference]: With dead ends: 542 [2023-11-12 00:59:49,330 INFO L226 Difference]: Without dead ends: 416 [2023-11-12 00:59:49,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 799 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=333, Invalid=857, Unknown=0, NotChecked=0, Total=1190 [2023-11-12 00:59:49,338 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 432 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:59:49,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 395 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-12 00:59:49,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2023-11-12 00:59:49,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 201. [2023-11-12 00:59:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 131 states have (on average 1.251908396946565) internal successors, (164), 131 states have internal predecessors, (164), 60 states have call successors, (60), 9 states have call predecessors, (60), 9 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-12 00:59:49,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 284 transitions. [2023-11-12 00:59:49,411 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 284 transitions. Word has length 136 [2023-11-12 00:59:49,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:59:49,412 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 284 transitions. [2023-11-12 00:59:49,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 3 states have call successors, (33), 3 states have call predecessors, (33), 6 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-11-12 00:59:49,412 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 284 transitions. [2023-11-12 00:59:49,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-12 00:59:49,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:59:49,414 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:59:49,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-12 00:59:49,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 00:59:49,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:59:50,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:59:50,022 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:59:50,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:59:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2140814717, now seen corresponding path program 1 times [2023-11-12 00:59:50,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:59:50,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655696940] [2023-11-12 00:59:50,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:59:50,024 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 [2023-11-12 00:59:50,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:59:50,025 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:59:50,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41c520c0-dbc1-4eb2-a4ff-41a849878e73/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:59:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:59:50,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-12 00:59:50,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:59:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 454 proven. 120 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-12 00:59:56,011 INFO L327 TraceCheckSpWp]: Computing backward predicates...