./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 f3bccbd47f020014aaa87680c2199640dac67db437f4e10374d3a460fe0987cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:08:38,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:08:39,131 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:08:39,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:08:39,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:08:39,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:08:39,190 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:08:39,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:08:39,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:08:39,198 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:08:39,199 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:08:39,200 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:08:39,201 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:08:39,203 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:08:39,204 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:08:39,204 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:08:39,205 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:08:39,206 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:08:39,206 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:08:39,207 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:08:39,208 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:08:39,209 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:08:39,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:08:39,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:08:39,211 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:08:39,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:08:39,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:08:39,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:08:39,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:08:39,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:08:39,216 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:08:39,216 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:08:39,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:08:39,217 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:08:39,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:08:39,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:08:39,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:39,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:08:39,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:08:39,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:08:39,220 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:08:39,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:08:39,221 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:08:39,221 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:08:39,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:08:39,223 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_48a27fb1-ed90-442f-a68e-8eddcfb07018/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3bccbd47f020014aaa87680c2199640dac67db437f4e10374d3a460fe0987cf [2023-11-12 00:08:39,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:08:39,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:08:39,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:08:39,594 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:08:39,594 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:08:39,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i [2023-11-12 00:08:42,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:08:43,009 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:08:43,010 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i [2023-11-12 00:08:43,022 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/data/5b9fbc490/13dbf26f4fd34831937680e1b5f66cfb/FLAG4ab386b54 [2023-11-12 00:08:43,040 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/data/5b9fbc490/13dbf26f4fd34831937680e1b5f66cfb [2023-11-12 00:08:43,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:08:43,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:08:43,051 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:43,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:08:43,057 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:08:43,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5535c0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43, skipping insertion in model container [2023-11-12 00:08:43,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,113 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:43,296 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_48a27fb1-ed90-442f-a68e-8eddcfb07018/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i[913,926] [2023-11-12 00:08:43,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:43,356 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:08:43,370 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_48a27fb1-ed90-442f-a68e-8eddcfb07018/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i[913,926] [2023-11-12 00:08:43,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:43,442 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:08:43,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43 WrapperNode [2023-11-12 00:08:43,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:43,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:43,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:08:43,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:08:43,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,475 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,523 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2023-11-12 00:08:43,524 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:43,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:08:43,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:08:43,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:08:43,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,548 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,579 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:08:43,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:08:43,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:08:43,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:08:43,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (1/1) ... [2023-11-12 00:08:43,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:43,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:43,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:08:43,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:08:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:08:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:08:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:08:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:08:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:08:43,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:08:43,781 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:08:43,783 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:08:44,092 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:08:44,289 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:08:44,289 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:08:44,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:44 BoogieIcfgContainer [2023-11-12 00:08:44,293 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:08:44,295 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:08:44,295 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:08:44,299 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:08:44,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:08:43" (1/3) ... [2023-11-12 00:08:44,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdec50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:44, skipping insertion in model container [2023-11-12 00:08:44,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:43" (2/3) ... [2023-11-12 00:08:44,300 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdec50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:44, skipping insertion in model container [2023-11-12 00:08:44,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:44" (3/3) ... [2023-11-12 00:08:44,302 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-14.i [2023-11-12 00:08:44,321 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:08:44,321 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:08:44,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:08:44,383 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;@463038a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:08:44,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:08:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:08:44,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-12 00:08:44,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:44,427 INFO L195 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:08:44,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:44,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:44,438 INFO L85 PathProgramCache]: Analyzing trace with hash -192200642, now seen corresponding path program 1 times [2023-11-12 00:08:44,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:08:44,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923175861] [2023-11-12 00:08:44,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:44,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:08:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:08:44,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:08:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:08:45,348 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:08:45,350 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:08:45,352 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:08:45,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:08:45,359 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:08:45,364 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:08:45,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:08:45 BoogieIcfgContainer [2023-11-12 00:08:45,455 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:08:45,456 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:08:45,456 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:08:45,456 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:08:45,457 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:44" (3/4) ... [2023-11-12 00:08:45,459 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:08:45,460 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:08:45,461 INFO L158 Benchmark]: Toolchain (without parser) took 2413.55ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 121.5MB in the beginning and 115.7MB in the end (delta: 5.8MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2023-11-12 00:08:45,462 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 161.5MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:08:45,463 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.26ms. Allocated memory is still 161.5MB. Free memory was 120.9MB in the beginning and 108.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:08:45,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.15ms. Allocated memory is still 161.5MB. Free memory was 108.2MB in the beginning and 105.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:08:45,464 INFO L158 Benchmark]: Boogie Preprocessor took 61.31ms. Allocated memory is still 161.5MB. Free memory was 105.5MB in the beginning and 104.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:08:45,465 INFO L158 Benchmark]: RCFGBuilder took 696.72ms. Allocated memory is still 161.5MB. Free memory was 104.1MB in the beginning and 74.0MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-12 00:08:45,465 INFO L158 Benchmark]: TraceAbstraction took 1160.25ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 73.3MB in the beginning and 115.7MB in the end (delta: -42.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:08:45,466 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 195.0MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:08:45,470 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 161.5MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.26ms. Allocated memory is still 161.5MB. Free memory was 120.9MB in the beginning and 108.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.15ms. Allocated memory is still 161.5MB. Free memory was 108.2MB in the beginning and 105.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.31ms. Allocated memory is still 161.5MB. Free memory was 105.5MB in the beginning and 104.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 696.72ms. Allocated memory is still 161.5MB. Free memory was 104.1MB in the beginning and 74.0MB in the end (delta: 30.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1160.25ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 73.3MB in the beginning and 115.7MB in the end (delta: -42.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 195.0MB. Free memory is still 115.7MB. 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 someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 1000000; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 1; [L25] signed short int var_1_5 = -64; [L26] signed short int var_1_6 = -64; [L27] signed short int var_1_7 = 10; [L28] signed short int var_1_8 = 8; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 1; [L31] unsigned char var_1_11 = 0; [L32] unsigned short int var_1_12 = 2; [L33] float var_1_13 = 32.25; [L34] float var_1_14 = 15.5; [L35] float var_1_15 = 256.25; [L36] double var_1_16 = 8.6; [L37] unsigned short int var_1_17 = 57581; [L38] unsigned char last_1_var_1_9 = 0; [L109] isInitial = 1 [L110] FCALL initially() [L111] COND TRUE 1 [L112] CALL updateLastVariables() [L102] last_1_var_1_9 = var_1_9 [L112] RET updateLastVariables() [L113] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_3=1, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_3=1, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=1, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=1, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L70] var_1_3 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L72] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=-64, var_1_7=10, var_1_8=8, var_1_9=0] [L73] var_1_6 = __VERIFIER_nondet_short() [L74] CALL assume_abort_if_not(var_1_6 >= -32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 >= -32767) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=10, var_1_8=8, var_1_9=0] [L75] CALL assume_abort_if_not(var_1_6 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=10, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 <= 32766) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=10, var_1_8=8, var_1_9=0] [L76] var_1_7 = __VERIFIER_nondet_short() [L77] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=8, var_1_9=0] [L78] CALL assume_abort_if_not(var_1_7 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=8, var_1_9=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_7 <= 16383) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=8, var_1_9=0] [L79] var_1_8 = __VERIFIER_nondet_short() [L80] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L81] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L82] var_1_10 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L84] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L85] var_1_11 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L87] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=129/4, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L88] var_1_13 = __VERIFIER_nondet_float() [L89] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=31/2, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L90] var_1_14 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not((var_1_14 >= -922337.2036854776000e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L92] CALL assume_abort_if_not(var_1_14 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_14 != 0.0F) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1025/4, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L93] var_1_15 = __VERIFIER_nondet_float() [L94] CALL assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((var_1_15 >= -922337.2036854776000e+13F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=43/5, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L95] var_1_16 = __VERIFIER_nondet_double() [L96] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854776000e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854776000e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=57581, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L97] var_1_17 = __VERIFIER_nondet_ushort() [L98] CALL assume_abort_if_not(var_1_17 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_17 >= 32767) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L99] CALL assume_abort_if_not(var_1_17 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_17 <= 65534) VAL [isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=2, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=-64, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L113] RET updateVariables() [L114] CALL step() [L42] COND FALSE !(\read(last_1_var_1_9)) [L45] var_1_5 = ((var_1_7 + 16) - var_1_8) [L47] COND TRUE (var_1_13 / var_1_14) <= var_1_15 [L48] COND FALSE !((var_1_16 - 2.3) > var_1_14) [L51] var_1_12 = ((((var_1_7) > (((((var_1_17 - var_1_8) < 0 ) ? -(var_1_17 - var_1_8) : (var_1_17 - var_1_8))))) ? (var_1_7) : (((((var_1_17 - var_1_8) < 0 ) ? -(var_1_17 - var_1_8) : (var_1_17 - var_1_8)))))) [L56] COND FALSE !(((var_1_5 >= var_1_12) && var_1_2) && var_1_3) [L59] var_1_9 = (! (var_1_11 || var_1_10)) [L61] unsigned char stepLocal_0 = var_1_9; [L62] COND FALSE !(stepLocal_0 && var_1_9) [L114] RET step() [L115] CALL, EXPR property() [L105-L106] return ((((var_1_9 && var_1_9) ? (var_1_1 == ((signed long int) var_1_5)) : 1) && (last_1_var_1_9 ? (var_1_5 == ((signed short int) var_1_6)) : (var_1_5 == ((signed short int) ((var_1_7 + 16) - var_1_8))))) && ((((var_1_5 >= var_1_12) && var_1_2) && var_1_3) ? (var_1_9 == ((unsigned char) (! var_1_10))) : (var_1_9 == ((unsigned char) (! (var_1_11 || var_1_10)))))) && (((var_1_13 / var_1_14) <= var_1_15) ? (((var_1_16 - 2.3) > var_1_14) ? (var_1_12 == ((unsigned short int) (var_1_17 - var_1_7))) : (var_1_12 == ((unsigned short int) ((((var_1_7) > (((((var_1_17 - var_1_8) < 0 ) ? -(var_1_17 - var_1_8) : (var_1_17 - var_1_8))))) ? (var_1_7) : (((((var_1_17 - var_1_8) < 0 ) ? -(var_1_17 - var_1_8) : (var_1_17 - var_1_8))))))))) : (var_1_12 == ((unsigned short int) var_1_8))) ; [L115] RET, EXPR property() [L115] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=16385, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=17, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_9=0, var_1_10=1, var_1_11=0, var_1_12=16385, var_1_13=1000005, var_1_14=1000008, var_1_15=1000006, var_1_16=1000007, var_1_17=32767, var_1_1=1000000, var_1_2=1, var_1_3=0, var_1_5=17, var_1_6=17, var_1_7=16383, var_1_8=16382, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 21, 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=42occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 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 00:08:45,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 f3bccbd47f020014aaa87680c2199640dac67db437f4e10374d3a460fe0987cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:08:48,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:08:48,363 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:08:48,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:08:48,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:08:48,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:08:48,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:08:48,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:08:48,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:08:48,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:08:48,399 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:08:48,400 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:08:48,400 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:08:48,401 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:08:48,401 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:08:48,402 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:08:48,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:08:48,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:08:48,404 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:08:48,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:08:48,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:08:48,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:08:48,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:08:48,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:08:48,408 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:08:48,408 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:08:48,409 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:08:48,409 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:08:48,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:08:48,410 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:08:48,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:08:48,411 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:08:48,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:08:48,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:48,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:08:48,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:08:48,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:08:48,414 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:08:48,415 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:08:48,415 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:08:48,416 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:08:48,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:08:48,417 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_48a27fb1-ed90-442f-a68e-8eddcfb07018/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3bccbd47f020014aaa87680c2199640dac67db437f4e10374d3a460fe0987cf [2023-11-12 00:08:48,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:08:48,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:08:48,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:08:48,814 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:08:48,814 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:08:48,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i [2023-11-12 00:08:51,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:08:52,310 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:08:52,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i [2023-11-12 00:08:52,320 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/data/a85013500/bb49b1ae35e1424386fcfa9b94c0f5ae/FLAG28ecfa106 [2023-11-12 00:08:52,336 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/data/a85013500/bb49b1ae35e1424386fcfa9b94c0f5ae [2023-11-12 00:08:52,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:08:52,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:08:52,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:52,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:08:52,349 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:08:52,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6289b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52, skipping insertion in model container [2023-11-12 00:08:52,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,379 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:52,537 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_48a27fb1-ed90-442f-a68e-8eddcfb07018/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i[913,926] [2023-11-12 00:08:52,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:52,613 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:08:52,629 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_48a27fb1-ed90-442f-a68e-8eddcfb07018/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-14.i[913,926] [2023-11-12 00:08:52,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:52,701 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:08:52,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52 WrapperNode [2023-11-12 00:08:52,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:52,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:52,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:08:52,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:08:52,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,759 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2023-11-12 00:08:52,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:52,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:08:52,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:08:52,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:08:52,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,780 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,792 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:08:52,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:08:52,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:08:52,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:08:52,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (1/1) ... [2023-11-12 00:08:52,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:52,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:52,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:08:52,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:08:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:08:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:08:52,885 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:08:52,885 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:08:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:08:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:08:52,977 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:08:52,979 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:08:59,193 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:08:59,202 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:08:59,203 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:08:59,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:59 BoogieIcfgContainer [2023-11-12 00:08:59,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:08:59,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:08:59,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:08:59,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:08:59,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:08:52" (1/3) ... [2023-11-12 00:08:59,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4242deb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:59, skipping insertion in model container [2023-11-12 00:08:59,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:52" (2/3) ... [2023-11-12 00:08:59,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4242deb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:59, skipping insertion in model container [2023-11-12 00:08:59,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:59" (3/3) ... [2023-11-12 00:08:59,217 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-14.i [2023-11-12 00:08:59,235 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:08:59,236 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:08:59,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:08:59,292 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;@2364aff2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:08:59,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:08:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:08:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 00:08:59,315 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:08:59,316 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:08:59,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:08:59,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:08:59,328 INFO L85 PathProgramCache]: Analyzing trace with hash 173013582, now seen corresponding path program 1 times [2023-11-12 00:08:59,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:08:59,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374541023] [2023-11-12 00:08:59,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:08:59,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:08:59,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:08:59,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:08:59,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:00,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:09:00,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2023-11-12 00:09:00,131 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:09:00,132 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:09:00,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374541023] [2023-11-12 00:09:00,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374541023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:09:00,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:09:00,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:09:00,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176956123] [2023-11-12 00:09:00,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:09:00,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:09:00,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:09:00,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:09:00,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:09:00,196 INFO L87 Difference]: Start difference. First operand has 58 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 35 states have internal predecessors, (44), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 00:09:00,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:09:00,235 INFO L93 Difference]: Finished difference Result 109 states and 187 transitions. [2023-11-12 00:09:00,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:09:00,238 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 131 [2023-11-12 00:09:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:09:00,247 INFO L225 Difference]: With dead ends: 109 [2023-11-12 00:09:00,247 INFO L226 Difference]: Without dead ends: 54 [2023-11-12 00:09:00,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 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 00:09:00,255 INFO L413 NwaCegarLoop]: 79 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, 79 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 00:09:00,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:09:00,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-12 00:09:00,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-12 00:09:00,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-12 00:09:00,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 79 transitions. [2023-11-12 00:09:00,326 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 79 transitions. Word has length 131 [2023-11-12 00:09:00,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:09:00,327 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 79 transitions. [2023-11-12 00:09:00,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-12 00:09:00,329 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 79 transitions. [2023-11-12 00:09:00,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 00:09:00,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:00,340 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:09:00,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:00,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:00,559 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:09:00,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:00,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1923071244, now seen corresponding path program 1 times [2023-11-12 00:09:00,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:09:00,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946009389] [2023-11-12 00:09:00,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:00,562 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 00:09:00,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:09:00,593 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:00,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:01,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:09:01,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:01,789 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-12 00:09:01,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:09:01,789 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:09:01,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946009389] [2023-11-12 00:09:01,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946009389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:09:01,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:09:01,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:09:01,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513160446] [2023-11-12 00:09:01,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:09:01,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:09:01,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:09:01,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:09:01,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:09:01,794 INFO L87 Difference]: Start difference. First operand 54 states and 79 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-12 00:09:04,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:09:05,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:09:08,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:09:08,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:09:08,062 INFO L93 Difference]: Finished difference Result 160 states and 238 transitions. [2023-11-12 00:09:08,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:09:08,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131 [2023-11-12 00:09:08,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:09:08,109 INFO L225 Difference]: With dead ends: 160 [2023-11-12 00:09:08,109 INFO L226 Difference]: Without dead ends: 109 [2023-11-12 00:09:08,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 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 00:09:08,112 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 46 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 44 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:09:08,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 221 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2023-11-12 00:09:08,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-12 00:09:08,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 94. [2023-11-12 00:09:08,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 49 states have internal predecessors, (55), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-12 00:09:08,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 139 transitions. [2023-11-12 00:09:08,159 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 139 transitions. Word has length 131 [2023-11-12 00:09:08,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:09:08,161 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 139 transitions. [2023-11-12 00:09:08,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-12 00:09:08,163 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 139 transitions. [2023-11-12 00:09:08,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 00:09:08,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:08,168 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:09:08,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:08,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:08,386 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:09:08,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:08,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1691837682, now seen corresponding path program 1 times [2023-11-12 00:09:08,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:09:08,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051011457] [2023-11-12 00:09:08,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:08,388 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 00:09:08,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:09:08,390 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:08,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:08,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:09:08,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 30 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-12 00:09:09,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:09:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-12 00:09:09,728 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:09:09,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051011457] [2023-11-12 00:09:09,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051011457] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:09:09,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1527362140] [2023-11-12 00:09:09,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:09,732 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:09:09,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:09:09,742 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:09:09,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-12 00:09:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:10,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 00:09:10,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 452 proven. 54 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2023-11-12 00:09:11,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:09:11,863 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-12 00:09:11,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1527362140] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:09:11,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850436011] [2023-11-12 00:09:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:11,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:09:11,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:09:11,868 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:09:11,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 00:09:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:12,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:09:12,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:12,949 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 452 proven. 54 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2023-11-12 00:09:12,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:09:13,327 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-11-12 00:09:13,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850436011] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:09:13,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-12 00:09:13,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 10, 7, 9, 6] total 12 [2023-11-12 00:09:13,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326907740] [2023-11-12 00:09:13,329 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-12 00:09:13,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 00:09:13,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:09:13,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 00:09:13,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:09:13,337 INFO L87 Difference]: Start difference. First operand 94 states and 139 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-12 00:09:16,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:09:17,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:09:17,417 INFO L93 Difference]: Finished difference Result 165 states and 231 transitions. [2023-11-12 00:09:17,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 00:09:17,475 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 131 [2023-11-12 00:09:17,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:09:17,478 INFO L225 Difference]: With dead ends: 165 [2023-11-12 00:09:17,478 INFO L226 Difference]: Without dead ends: 114 [2023-11-12 00:09:17,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 769 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2023-11-12 00:09:17,482 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 139 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 126 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:09:17,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 153 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2023-11-12 00:09:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-12 00:09:17,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2023-11-12 00:09:17,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 61 states have (on average 1.0819672131147542) internal successors, (66), 61 states have internal predecessors, (66), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-12 00:09:17,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 150 transitions. [2023-11-12 00:09:17,539 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 150 transitions. Word has length 131 [2023-11-12 00:09:17,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:09:17,540 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 150 transitions. [2023-11-12 00:09:17,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (40), 3 states have call predecessors, (40), 6 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-12 00:09:17,546 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 150 transitions. [2023-11-12 00:09:17,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 00:09:17,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:17,550 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:09:17,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 00:09:17,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:09:17,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:18,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:18,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:09:18,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:18,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1689990640, now seen corresponding path program 1 times [2023-11-12 00:09:18,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:09:18,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409547024] [2023-11-12 00:09:18,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:18,169 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 00:09:18,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:09:18,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 00:09:18,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a27fb1-ed90-442f-a68e-8eddcfb07018/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 (7)] Waiting until timeout for monitored process [2023-11-12 00:09:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:18,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-12 00:09:18,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:42,632 WARN L293 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)