./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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_140ec062-16ce-40fb-a63e-4812aad80eea/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 5e1b8b4624d0007ae8a17486b57335d86a5d8147da0a7d85486b0cccda2d27e7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:40,262 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:40,408 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:57:40,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:40,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:40,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:40,456 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:40,457 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:40,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:40,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:40,463 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:40,464 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:40,465 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:40,467 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:57:40,467 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:40,468 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:40,468 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:57:40,468 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:57:40,469 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:40,469 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:57:40,470 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:57:40,471 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:57:40,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:40,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:57:40,473 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:57:40,473 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:57:40,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:57:40,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:40,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:57:40,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:40,476 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:57:40,477 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:57:40,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:57:40,477 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:40,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:40,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:40,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:40,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:40,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:40,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:57:40,480 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:57:40,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:57:40,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:57:40,481 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:40,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:40,482 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_140ec062-16ce-40fb-a63e-4812aad80eea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e1b8b4624d0007ae8a17486b57335d86a5d8147da0a7d85486b0cccda2d27e7 [2023-11-12 00:57:40,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:40,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:40,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:40,777 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:40,778 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:40,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i [2023-11-12 00:57:43,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:44,092 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:44,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i [2023-11-12 00:57:44,106 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/data/944c0deae/28802a0d3a8c42a699a6d8c57dd18270/FLAGeb39b4421 [2023-11-12 00:57:44,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/data/944c0deae/28802a0d3a8c42a699a6d8c57dd18270 [2023-11-12 00:57:44,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:44,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:44,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:44,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:44,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:44,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1008239a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44, skipping insertion in model container [2023-11-12 00:57:44,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,205 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:44,396 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_140ec062-16ce-40fb-a63e-4812aad80eea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i[913,926] [2023-11-12 00:57:44,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:44,491 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:57:44,504 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_140ec062-16ce-40fb-a63e-4812aad80eea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i[913,926] [2023-11-12 00:57:44,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:44,548 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:57:44,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44 WrapperNode [2023-11-12 00:57:44,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:44,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:44,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:57:44,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:57:44,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,611 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-11-12 00:57:44,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:44,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:57:44,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:57:44,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:57:44,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,626 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:57:44,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:57:44,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:57:44,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:57:44,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (1/1) ... [2023-11-12 00:57:44,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:44,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:44,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:57:44,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:57:44,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:57:44,741 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:57:44,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:57:44,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:57:44,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:57:44,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:57:44,864 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:57:44,870 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:57:45,272 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:57:45,438 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:57:45,438 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:57:45,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:45 BoogieIcfgContainer [2023-11-12 00:57:45,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:57:45,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:57:45,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:57:45,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:57:45,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:57:44" (1/3) ... [2023-11-12 00:57:45,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3041bcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:45, skipping insertion in model container [2023-11-12 00:57:45,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:44" (2/3) ... [2023-11-12 00:57:45,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3041bcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:45, skipping insertion in model container [2023-11-12 00:57:45,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:45" (3/3) ... [2023-11-12 00:57:45,452 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-25.i [2023-11-12 00:57:45,474 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:57:45,474 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:57:45,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:57:45,536 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;@55be1ff1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:57:45,537 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:57:45,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-12 00:57:45,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 00:57:45,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:45,554 INFO L195 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:45,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:45,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:45,561 INFO L85 PathProgramCache]: Analyzing trace with hash 501942729, now seen corresponding path program 1 times [2023-11-12 00:57:45,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:45,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536481575] [2023-11-12 00:57:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:45,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:57:46,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:57:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:57:46,283 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:57:46,285 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:57:46,287 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:57:46,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:57:46,294 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:57:46,298 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:57:46,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:57:46 BoogieIcfgContainer [2023-11-12 00:57:46,359 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:57:46,359 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:57:46,359 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:57:46,360 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:57:46,360 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:45" (3/4) ... [2023-11-12 00:57:46,362 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:57:46,364 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:57:46,365 INFO L158 Benchmark]: Toolchain (without parser) took 2205.58ms. Allocated memory is still 197.1MB. Free memory was 167.3MB in the beginning and 151.7MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:57:46,365 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:57:46,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.98ms. Allocated memory is still 197.1MB. Free memory was 167.3MB in the beginning and 154.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:57:46,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.46ms. Allocated memory is still 197.1MB. Free memory was 154.3MB in the beginning and 152.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:57:46,367 INFO L158 Benchmark]: Boogie Preprocessor took 34.30ms. Allocated memory is still 197.1MB. Free memory was 152.2MB in the beginning and 150.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:57:46,368 INFO L158 Benchmark]: RCFGBuilder took 794.83ms. Allocated memory is still 197.1MB. Free memory was 150.7MB in the beginning and 120.2MB in the end (delta: 30.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-12 00:57:46,368 INFO L158 Benchmark]: TraceAbstraction took 914.24ms. Allocated memory is still 197.1MB. Free memory was 119.2MB in the beginning and 152.7MB in the end (delta: -33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-12 00:57:46,369 INFO L158 Benchmark]: Witness Printer took 4.44ms. Allocated memory is still 197.1MB. Free memory was 152.7MB in the beginning and 151.7MB in the end (delta: 920.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:57:46,373 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 96.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.98ms. Allocated memory is still 197.1MB. Free memory was 167.3MB in the beginning and 154.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.46ms. Allocated memory is still 197.1MB. Free memory was 154.3MB in the beginning and 152.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.30ms. Allocated memory is still 197.1MB. Free memory was 152.2MB in the beginning and 150.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 794.83ms. Allocated memory is still 197.1MB. Free memory was 150.7MB in the beginning and 120.2MB in the end (delta: 30.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 914.24ms. Allocated memory is still 197.1MB. Free memory was 119.2MB in the beginning and 152.7MB in the end (delta: -33.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.44ms. Allocated memory is still 197.1MB. Free memory was 152.7MB in the beginning and 151.7MB in the end (delta: 920.0kB). Peak memory consumption was 2.1MB. 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 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 256; [L23] unsigned char var_1_2 = 0; [L24] unsigned short int var_1_3 = 10; [L25] unsigned short int var_1_4 = 500; [L26] unsigned long int var_1_5 = 0; [L27] unsigned long int var_1_6 = 1509114200; [L28] unsigned long int var_1_7 = 10; [L29] float var_1_8 = 128.9; [L30] float var_1_9 = 63.363; [L31] float var_1_10 = 4.575; [L32] float var_1_11 = 25.5; [L33] unsigned char var_1_12 = 1; [L34] unsigned char var_1_13 = 0; [L35] unsigned char var_1_14 = 1; [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] FCALL updateLastVariables() [L111] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_3=10, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_3=10, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=10, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=10, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L74] var_1_3 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L76] CALL assume_abort_if_not(var_1_3 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_3 <= 65535) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=500, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L77] var_1_4 = __VERIFIER_nondet_ushort() [L78] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L79] CALL assume_abort_if_not(var_1_4 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_4 <= 65535) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L80] var_1_5 = __VERIFIER_nondet_ulong() [L81] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L82] CALL assume_abort_if_not(var_1_5 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_5 <= 1073741823) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=1509114200, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L83] var_1_6 = __VERIFIER_nondet_ulong() [L84] CALL assume_abort_if_not(var_1_6 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_6 >= 1073741823) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L85] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=10, var_1_8=1289/10, var_1_9=63363/1000] [L86] var_1_7 = __VERIFIER_nondet_ulong() [L87] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=63363/1000] [L88] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=63363/1000] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=63363/1000] [L89] var_1_9 = __VERIFIER_nondet_float() [L90] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=183/40, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L91] var_1_10 = __VERIFIER_nondet_float() [L92] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=0, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L93] var_1_13 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=1, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=1, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L95] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=1, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=1, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L96] var_1_14 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=1, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=1, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L98] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=1, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=1, var_1_14=1, var_1_1=256, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=1289/10, var_1_9=51/2] [L111] RET updateVariables() [L112] CALL step() [L39] COND FALSE !(var_1_9 != var_1_10) [L46] var_1_12 = var_1_14 [L48] unsigned short int stepLocal_0 = var_1_3; [L49] COND TRUE \read(var_1_12) [L50] COND TRUE stepLocal_0 <= var_1_4 [L51] var_1_1 = (((((var_1_3) > ((var_1_4 + var_1_5))) ? (var_1_3) : ((var_1_4 + var_1_5)))) + (var_1_6 - var_1_7)) [L56] unsigned long int stepLocal_1 = var_1_1; [L57] COND FALSE !(var_1_7 >= stepLocal_1) [L60] var_1_8 = ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))) [L62] COND TRUE var_1_10 >= ((((((((128.175f) > (var_1_9)) ? (128.175f) : (var_1_9)))) < (var_1_8)) ? (((((128.175f) > (var_1_9)) ? (128.175f) : (var_1_9)))) : (var_1_8))) [L63] var_1_11 = var_1_10 [L112] RET step() [L113] CALL, EXPR property() [L103-L104] return (((var_1_12 ? ((var_1_3 <= var_1_4) ? (var_1_1 == ((unsigned long int) (((((var_1_3) > ((var_1_4 + var_1_5))) ? (var_1_3) : ((var_1_4 + var_1_5)))) + (var_1_6 - var_1_7)))) : 1) : (var_1_1 == ((unsigned long int) var_1_7))) && ((var_1_7 >= var_1_1) ? (var_1_8 == ((float) ((((0.5f) < (var_1_9)) ? (0.5f) : (var_1_9))))) : (var_1_8 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))))) && ((var_1_10 >= ((((((((128.175f) > (var_1_9)) ? (128.175f) : (var_1_9)))) < (var_1_8)) ? (((((128.175f) > (var_1_9)) ? (128.175f) : (var_1_9)))) : (var_1_8)))) ? (var_1_11 == ((float) var_1_10)) : ((! (var_1_7 <= var_1_6)) ? (var_1_11 == ((float) var_1_9)) : 1))) && ((var_1_9 != var_1_10) ? ((var_1_2 || var_1_13) ? (var_1_12 == ((unsigned char) (var_1_13 || var_1_14))) : (var_1_12 == ((unsigned char) var_1_14))) : (var_1_12 == ((unsigned char) var_1_14))) ; [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=1, var_1_14=1, var_1_1=1073741824, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=51/2, var_1_9=51/2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=51/2, var_1_11=51/2, var_1_12=1, var_1_13=1, var_1_14=1, var_1_1=1073741824, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=0, var_1_6=2147483647, var_1_7=1073741823, var_1_8=51/2, var_1_9=51/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 18, 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=37occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 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 00:57:46,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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_140ec062-16ce-40fb-a63e-4812aad80eea/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 5e1b8b4624d0007ae8a17486b57335d86a5d8147da0a7d85486b0cccda2d27e7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:49,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:49,237 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:57:49,248 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:49,249 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:49,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:49,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:49,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:49,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:49,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:49,304 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:49,305 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:49,305 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:49,307 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:49,308 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:49,308 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:49,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:49,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:57:49,310 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:57:49,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:57:49,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:49,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:57:49,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:49,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:57:49,314 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:57:49,314 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:57:49,315 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:57:49,315 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:57:49,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:57:49,316 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:49,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:49,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:57:49,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:49,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:49,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:49,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:49,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:57:49,319 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:57:49,320 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:57:49,321 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:57:49,321 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:49,321 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:49,322 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_140ec062-16ce-40fb-a63e-4812aad80eea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e1b8b4624d0007ae8a17486b57335d86a5d8147da0a7d85486b0cccda2d27e7 [2023-11-12 00:57:49,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:49,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:49,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:49,820 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:49,820 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:49,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i [2023-11-12 00:57:52,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:53,248 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:53,248 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i [2023-11-12 00:57:53,262 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/data/2fe9809ba/885da1773af34a16884ce9f29f78daa7/FLAG64613fd5b [2023-11-12 00:57:53,289 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/data/2fe9809ba/885da1773af34a16884ce9f29f78daa7 [2023-11-12 00:57:53,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:53,297 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:53,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:53,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:53,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:53,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d70cdde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53, skipping insertion in model container [2023-11-12 00:57:53,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,351 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:57:53,553 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_140ec062-16ce-40fb-a63e-4812aad80eea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i[913,926] [2023-11-12 00:57:53,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:53,654 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:57:53,675 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_140ec062-16ce-40fb-a63e-4812aad80eea/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-25.i[913,926] [2023-11-12 00:57:53,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:57:53,740 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:57:53,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53 WrapperNode [2023-11-12 00:57:53,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:53,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:53,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:57:53,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:57:53,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,826 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2023-11-12 00:57:53,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:57:53,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:57:53,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:57:53,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:57:53,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:57:53,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:57:53,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:57:53,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:57:53,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (1/1) ... [2023-11-12 00:57:53,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:53,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:57:53,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:57:53,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:57:54,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:57:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:57:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:57:54,034 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:57:54,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:57:54,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:57:54,127 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:57:54,129 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:57:54,433 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:57:54,440 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:57:54,440 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:57:54,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:54 BoogieIcfgContainer [2023-11-12 00:57:54,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:57:54,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:57:54,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:57:54,449 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:57:54,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:57:53" (1/3) ... [2023-11-12 00:57:54,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238d0cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:54, skipping insertion in model container [2023-11-12 00:57:54,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:53" (2/3) ... [2023-11-12 00:57:54,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238d0cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:54, skipping insertion in model container [2023-11-12 00:57:54,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:54" (3/3) ... [2023-11-12 00:57:54,453 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-25.i [2023-11-12 00:57:54,472 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:57:54,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:57:54,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:57:54,549 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;@7eede91d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:57:54,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:57:54,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 36 states have internal predecessors, (47), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-12 00:57:54,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-12 00:57:54,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:54,576 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:54,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:54,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:54,587 INFO L85 PathProgramCache]: Analyzing trace with hash -161856466, now seen corresponding path program 1 times [2023-11-12 00:57:54,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:57:54,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550868614] [2023-11-12 00:57:54,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:54,606 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 00:57:54,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:57:54,608 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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 00:57:54,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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 00:57:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:55,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:57:55,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:57:55,113 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-12 00:57:55,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:57:55,114 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:57:55,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550868614] [2023-11-12 00:57:55,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550868614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:55,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:55,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:57:55,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014178726] [2023-11-12 00:57:55,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:55,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:57:55,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:57:55,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:57:55,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:57:55,170 INFO L87 Difference]: Start difference. First operand has 56 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 36 states have internal predecessors, (47), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 00:57:55,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:55,218 INFO L93 Difference]: Finished difference Result 105 states and 178 transitions. [2023-11-12 00:57:55,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:57:55,221 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 115 [2023-11-12 00:57:55,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:55,231 INFO L225 Difference]: With dead ends: 105 [2023-11-12 00:57:55,231 INFO L226 Difference]: Without dead ends: 52 [2023-11-12 00:57:55,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 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 00:57:55,242 INFO L413 NwaCegarLoop]: 76 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, 76 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 00:57:55,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:57:55,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-12 00:57:55,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-12 00:57:55,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-12 00:57:55,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 76 transitions. [2023-11-12 00:57:55,313 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 76 transitions. Word has length 115 [2023-11-12 00:57:55,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:55,314 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 76 transitions. [2023-11-12 00:57:55,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 00:57:55,315 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions. [2023-11-12 00:57:55,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-12 00:57:55,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:55,322 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:55,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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 00:57:55,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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 00:57:55,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:55,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:55,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1763426518, now seen corresponding path program 1 times [2023-11-12 00:57:55,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:57:55,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698286319] [2023-11-12 00:57:55,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:55,542 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 00:57:55,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:57:55,565 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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 00:57:55,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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 00:57:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:55,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:57:55,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:57:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-12 00:57:56,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:57:56,075 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:57:56,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698286319] [2023-11-12 00:57:56,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698286319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:56,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:56,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 00:57:56,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502603226] [2023-11-12 00:57:56,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:56,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:57:56,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:57:56,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:57:56,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:57:56,086 INFO L87 Difference]: Start difference. First operand 52 states and 76 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 00:57:56,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:56,659 INFO L93 Difference]: Finished difference Result 111 states and 157 transitions. [2023-11-12 00:57:56,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 00:57:56,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 115 [2023-11-12 00:57:56,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:56,667 INFO L225 Difference]: With dead ends: 111 [2023-11-12 00:57:56,667 INFO L226 Difference]: Without dead ends: 62 [2023-11-12 00:57:56,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:57:56,669 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 89 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:56,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 149 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 00:57:56,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-12 00:57:56,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2023-11-12 00:57:56,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-12 00:57:56,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 81 transitions. [2023-11-12 00:57:56,698 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 81 transitions. Word has length 115 [2023-11-12 00:57:56,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:56,701 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 81 transitions. [2023-11-12 00:57:56,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 00:57:56,702 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2023-11-12 00:57:56,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-12 00:57:56,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:56,714 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:56,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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 00:57:56,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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 00:57:56,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:57:56,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:56,937 INFO L85 PathProgramCache]: Analyzing trace with hash -223690547, now seen corresponding path program 1 times [2023-11-12 00:57:56,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:57:56,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984919505] [2023-11-12 00:57:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:56,938 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 00:57:56,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:57:56,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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 00:57:56,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140ec062-16ce-40fb-a63e-4812aad80eea/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 00:57:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:57,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-12 00:57:57,274 INFO L285 TraceCheckSpWp]: Computing forward predicates...