./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.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_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 db4339d9c0024596d658d0411cbe4cbce1656ab1dc5134de3a6a8a906120bfe4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:44:29,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:44:29,275 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:44:29,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:44:29,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:44:29,327 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:44:29,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:44:29,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:44:29,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:44:29,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:44:29,335 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:44:29,336 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:44:29,336 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:44:29,338 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:44:29,338 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:44:29,338 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:44:29,339 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:44:29,339 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:44:29,340 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:44:29,340 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:44:29,341 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:44:29,341 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:44:29,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:44:29,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:44:29,343 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:44:29,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:44:29,344 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:44:29,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:44:29,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:44:29,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:44:29,346 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:44:29,347 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:44:29,347 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:44:29,347 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:44:29,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:44:29,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:44:29,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:29,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:44:29,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:44:29,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:44:29,349 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:44:29,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:44:29,350 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:44:29,350 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:44:29,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:44:29,351 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_1201af07-19b5-4424-a5c9-e2b4bca941cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db4339d9c0024596d658d0411cbe4cbce1656ab1dc5134de3a6a8a906120bfe4 [2023-11-12 00:44:29,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:44:29,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:44:29,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:44:29,728 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:44:29,728 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:44:29,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.i [2023-11-12 00:44:32,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:44:33,066 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:44:33,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.i [2023-11-12 00:44:33,085 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/data/038b49efc/e6f3c94440b742db83d64e2b8f2ae43d/FLAGc6e844a46 [2023-11-12 00:44:33,099 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/data/038b49efc/e6f3c94440b742db83d64e2b8f2ae43d [2023-11-12 00:44:33,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:44:33,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:44:33,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:33,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:44:33,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:44:33,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f001cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33, skipping insertion in model container [2023-11-12 00:44:33,116 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,149 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:44:33,332 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_1201af07-19b5-4424-a5c9-e2b4bca941cb/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.i[913,926] [2023-11-12 00:44:33,401 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:33,420 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:44:33,433 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_1201af07-19b5-4424-a5c9-e2b4bca941cb/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.i[913,926] [2023-11-12 00:44:33,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:33,487 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:44:33,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33 WrapperNode [2023-11-12 00:44:33,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:33,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:33,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:44:33,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:44:33,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,557 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 162 [2023-11-12 00:44:33,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:33,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:44:33,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:44:33,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:44:33,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:44:33,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:44:33,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:44:33,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:44:33,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (1/1) ... [2023-11-12 00:44:33,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:33,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:44:33,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:44:33,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:44:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:44:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:44:33,721 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:44:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:44:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:44:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:44:33,845 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:44:33,847 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:44:34,336 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:44:34,744 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:44:34,745 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:44:34,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:34 BoogieIcfgContainer [2023-11-12 00:44:34,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:44:34,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:44:34,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:44:34,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:44:34,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:44:33" (1/3) ... [2023-11-12 00:44:34,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205ceb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:34, skipping insertion in model container [2023-11-12 00:44:34,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:33" (2/3) ... [2023-11-12 00:44:34,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205ceb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:34, skipping insertion in model container [2023-11-12 00:44:34,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:34" (3/3) ... [2023-11-12 00:44:34,763 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-17.i [2023-11-12 00:44:34,784 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:44:34,784 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:44:34,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:44:34,866 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;@3c1b49ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:44:34,867 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:44:34,872 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 00:44:34,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 00:44:34,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:34,885 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 00:44:34,886 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:44:34,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:34,894 INFO L85 PathProgramCache]: Analyzing trace with hash 195080192, now seen corresponding path program 1 times [2023-11-12 00:44:34,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:34,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468208424] [2023-11-12 00:44:34,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:34,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:35,144 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:44:35,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [511541738] [2023-11-12 00:44:35,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:35,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:44:35,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:44:35,166 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:44:35,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:44:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:44:35,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:44:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:44:35,985 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:44:35,988 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:44:35,989 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:44:36,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-12 00:44:36,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:44:36,205 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:44:36,209 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:44:36,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:44:36 BoogieIcfgContainer [2023-11-12 00:44:36,320 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:44:36,321 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:44:36,321 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:44:36,321 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:44:36,322 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:34" (3/4) ... [2023-11-12 00:44:36,324 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:44:36,325 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:44:36,326 INFO L158 Benchmark]: Toolchain (without parser) took 3222.49ms. Allocated memory is still 148.9MB. Free memory was 113.1MB in the beginning and 91.9MB in the end (delta: 21.2MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2023-11-12 00:44:36,327 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:44:36,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.60ms. Allocated memory is still 148.9MB. Free memory was 112.8MB in the beginning and 99.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:44:36,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.46ms. Allocated memory is still 148.9MB. Free memory was 99.0MB in the beginning and 95.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:44:36,329 INFO L158 Benchmark]: Boogie Preprocessor took 56.05ms. Allocated memory is still 148.9MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:44:36,330 INFO L158 Benchmark]: RCFGBuilder took 1132.56ms. Allocated memory is still 148.9MB. Free memory was 93.0MB in the beginning and 75.2MB in the end (delta: 17.8MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-11-12 00:44:36,330 INFO L158 Benchmark]: TraceAbstraction took 1567.79ms. Allocated memory is still 148.9MB. Free memory was 74.3MB in the beginning and 91.9MB in the end (delta: -17.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:44:36,331 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 148.9MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:44:36,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.60ms. Allocated memory is still 148.9MB. Free memory was 112.8MB in the beginning and 99.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.46ms. Allocated memory is still 148.9MB. Free memory was 99.0MB in the beginning and 95.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.05ms. Allocated memory is still 148.9MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1132.56ms. Allocated memory is still 148.9MB. Free memory was 93.0MB in the beginning and 75.2MB in the end (delta: 17.8MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1567.79ms. Allocated memory is still 148.9MB. Free memory was 74.3MB in the beginning and 91.9MB in the end (delta: -17.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 148.9MB. Free memory is still 91.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 58, overapproximation of bitwiseAnd at line 73. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 25; [L23] unsigned char var_1_2 = 25; [L24] unsigned char var_1_3 = 0; [L25] unsigned char var_1_4 = 0; [L26] signed long int var_1_5 = 4; [L27] unsigned char var_1_7 = 0; [L28] unsigned char var_1_8 = 1; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 0; [L31] double var_1_11 = 7.3; [L32] double var_1_12 = 1.25; [L33] double var_1_13 = 128.8; [L34] signed char var_1_14 = -1; [L35] signed char var_1_15 = 10; [L36] signed short int var_1_16 = 8; [L37] unsigned long int var_1_18 = 128; [L38] unsigned long int var_1_19 = 3963666122; [L39] unsigned char last_1_var_1_8 = 1; [L40] signed char last_1_var_1_14 = -1; [L125] isInitial = 1 [L126] FCALL initially() [L127] COND TRUE 1 [L128] CALL updateLastVariables() [L117] last_1_var_1_8 = var_1_8 [L118] last_1_var_1_14 = var_1_14 [L128] RET updateLastVariables() [L129] CALL updateVariables() [L87] var_1_2 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L89] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L90] var_1_3 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L92] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L93] var_1_4 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L95] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L96] var_1_7 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=0] [L98] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=0] [L99] var_1_9 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_9 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_9 >= 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L101] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L102] var_1_10 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L104] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L105] var_1_12 = __VERIFIER_nondet_double() [L106] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L107] var_1_13 = __VERIFIER_nondet_double() [L108] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L109] var_1_15 = __VERIFIER_nondet_char() [L110] CALL assume_abort_if_not(var_1_15 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_15 >= -127) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L111] CALL assume_abort_if_not(var_1_15 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_15 <= 126) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L112] var_1_19 = __VERIFIER_nondet_ulong() [L113] CALL assume_abort_if_not(var_1_19 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_19 >= 2147483647) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L114] CALL assume_abort_if_not(var_1_19 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_19 <= 4294967294) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L129] RET updateVariables() [L130] CALL step() [L44] unsigned char stepLocal_0 = last_1_var_1_8; [L45] COND TRUE stepLocal_0 && last_1_var_1_8 [L46] COND TRUE \read(last_1_var_1_8) [L47] var_1_5 = (((((last_1_var_1_14) < 0 ) ? -(last_1_var_1_14) : (last_1_var_1_14))) - ((((var_1_4) < (var_1_2)) ? (var_1_4) : (var_1_2)))) [L52] COND FALSE !(var_1_5 < var_1_3) [L55] var_1_8 = (! var_1_10) [L57] var_1_1 = (50 + ((((var_1_2) < (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))))) [L58] COND TRUE (64.4f + 1.5f) <= var_1_13 [L59] COND TRUE var_1_1 >= var_1_4 [L60] var_1_14 = var_1_15 [L63] unsigned char stepLocal_3 = var_1_9 && var_1_8; [L64] COND FALSE !(stepLocal_3 || (var_1_8 && var_1_10)) [L67] var_1_18 = var_1_2 [L69] signed long int stepLocal_1 = 8 + var_1_14; [L70] COND FALSE !(var_1_4 == stepLocal_1) [L73] EXPR var_1_15 & var_1_1 [L73] unsigned long int stepLocal_2 = var_1_18 * (var_1_15 & var_1_1); [L74] COND FALSE !(var_1_12 >= 9.6) [L130] RET step() [L131] CALL, EXPR property() [L121] EXPR (((((var_1_1 == ((unsigned char) (50 + ((((var_1_2) < (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))))))) && ((last_1_var_1_8 && last_1_var_1_8) ? (last_1_var_1_8 ? (var_1_5 == ((signed long int) (((((last_1_var_1_14) < 0 ) ? -(last_1_var_1_14) : (last_1_var_1_14))) - ((((var_1_4) < (var_1_2)) ? (var_1_4) : (var_1_2)))))) : (var_1_5 == ((signed long int) 8))) : 1)) && ((var_1_5 < var_1_3) ? (var_1_8 == ((unsigned char) ((var_1_7 || (last_1_var_1_8 || var_1_9)) && var_1_10))) : (var_1_8 == ((unsigned char) (! var_1_10))))) && ((var_1_4 == (8 + var_1_14)) ? (var_1_11 == ((double) ((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))))) : 1)) && (((64.4f + 1.5f) <= var_1_13) ? ((var_1_1 >= var_1_4) ? (var_1_14 == ((signed char) var_1_15)) : 1) : 1)) && ((var_1_12 >= 9.6) ? (var_1_10 ? (var_1_16 == ((signed short int) (2 - var_1_1))) : (((var_1_18 * (var_1_15 & var_1_1)) <= var_1_3) ? (var_1_16 == ((signed short int) var_1_18)) : (var_1_16 == ((signed short int) var_1_4)))) : 1) [L121] EXPR (var_1_12 >= 9.6) ? (var_1_10 ? (var_1_16 == ((signed short int) (2 - var_1_1))) : (((var_1_18 * (var_1_15 & var_1_1)) <= var_1_3) ? (var_1_16 == ((signed short int) var_1_18)) : (var_1_16 == ((signed short int) var_1_4)))) : 1 [L121] EXPR var_1_10 ? (var_1_16 == ((signed short int) (2 - var_1_1))) : (((var_1_18 * (var_1_15 & var_1_1)) <= var_1_3) ? (var_1_16 == ((signed short int) var_1_18)) : (var_1_16 == ((signed short int) var_1_4))) [L121] EXPR (var_1_12 >= 9.6) ? (var_1_10 ? (var_1_16 == ((signed short int) (2 - var_1_1))) : (((var_1_18 * (var_1_15 & var_1_1)) <= var_1_3) ? (var_1_16 == ((signed short int) var_1_18)) : (var_1_16 == ((signed short int) var_1_4)))) : 1 [L121] EXPR (((((var_1_1 == ((unsigned char) (50 + ((((var_1_2) < (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))))))) && ((last_1_var_1_8 && last_1_var_1_8) ? (last_1_var_1_8 ? (var_1_5 == ((signed long int) (((((last_1_var_1_14) < 0 ) ? -(last_1_var_1_14) : (last_1_var_1_14))) - ((((var_1_4) < (var_1_2)) ? (var_1_4) : (var_1_2)))))) : (var_1_5 == ((signed long int) 8))) : 1)) && ((var_1_5 < var_1_3) ? (var_1_8 == ((unsigned char) ((var_1_7 || (last_1_var_1_8 || var_1_9)) && var_1_10))) : (var_1_8 == ((unsigned char) (! var_1_10))))) && ((var_1_4 == (8 + var_1_14)) ? (var_1_11 == ((double) ((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))))) : 1)) && (((64.4f + 1.5f) <= var_1_13) ? ((var_1_1 >= var_1_4) ? (var_1_14 == ((signed char) var_1_15)) : 1) : 1)) && ((var_1_12 >= 9.6) ? (var_1_10 ? (var_1_16 == ((signed short int) (2 - var_1_1))) : (((var_1_18 * (var_1_15 & var_1_1)) <= var_1_3) ? (var_1_16 == ((signed short int) var_1_18)) : (var_1_16 == ((signed short int) var_1_4)))) : 1) [L121-L122] return ((((((var_1_1 == ((unsigned char) (50 + ((((var_1_2) < (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))))))) && ((last_1_var_1_8 && last_1_var_1_8) ? (last_1_var_1_8 ? (var_1_5 == ((signed long int) (((((last_1_var_1_14) < 0 ) ? -(last_1_var_1_14) : (last_1_var_1_14))) - ((((var_1_4) < (var_1_2)) ? (var_1_4) : (var_1_2)))))) : (var_1_5 == ((signed long int) 8))) : 1)) && ((var_1_5 < var_1_3) ? (var_1_8 == ((unsigned char) ((var_1_7 || (last_1_var_1_8 || var_1_9)) && var_1_10))) : (var_1_8 == ((unsigned char) (! var_1_10))))) && ((var_1_4 == (8 + var_1_14)) ? (var_1_11 == ((double) ((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))))) : 1)) && (((64.4f + 1.5f) <= var_1_13) ? ((var_1_1 >= var_1_4) ? (var_1_14 == ((signed char) var_1_15)) : 1) : 1)) && ((var_1_12 >= 9.6) ? (var_1_10 ? (var_1_16 == ((signed short int) (2 - var_1_1))) : (((var_1_18 * (var_1_15 & var_1_1)) <= var_1_3) ? (var_1_16 == ((signed short int) var_1_18)) : (var_1_16 == ((signed short int) var_1_4)))) : 1)) && (((var_1_9 && var_1_8) || (var_1_8 && var_1_10)) ? (var_1_18 == ((unsigned long int) (var_1_19 - (((((1991720936u - var_1_1)) < (var_1_2)) ? ((1991720936u - var_1_1)) : (var_1_2)))))) : (var_1_18 == ((unsigned long int) var_1_2))) ; [L131] RET, EXPR property() [L131] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=0, var_1_15=0, var_1_16=8, var_1_18=1, var_1_19=2147483647, var_1_1=50, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_7=1, var_1_8=0, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=2, var_1_13=3, var_1_14=0, var_1_15=0, var_1_16=8, var_1_18=1, var_1_19=2147483647, var_1_1=50, var_1_2=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_7=1, var_1_8=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, 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, 0.5s 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 00:44:36,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 db4339d9c0024596d658d0411cbe4cbce1656ab1dc5134de3a6a8a906120bfe4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:44:38,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:44:39,077 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:44:39,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:44:39,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:44:39,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:44:39,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:44:39,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:44:39,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:44:39,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:44:39,158 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:44:39,158 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:44:39,159 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:44:39,160 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:44:39,160 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:44:39,161 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:44:39,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:44:39,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:44:39,163 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:44:39,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:44:39,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:44:39,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:44:39,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:44:39,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:44:39,165 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:44:39,166 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:44:39,166 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:44:39,166 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:44:39,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:44:39,167 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:44:39,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:44:39,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:44:39,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:44:39,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:39,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:44:39,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:44:39,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:44:39,170 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:44:39,171 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:44:39,172 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:44:39,172 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:44:39,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:44:39,173 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_1201af07-19b5-4424-a5c9-e2b4bca941cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db4339d9c0024596d658d0411cbe4cbce1656ab1dc5134de3a6a8a906120bfe4 [2023-11-12 00:44:39,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:44:39,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:44:39,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:44:39,665 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:44:39,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:44:39,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.i [2023-11-12 00:44:42,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:44:43,062 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:44:43,062 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.i [2023-11-12 00:44:43,078 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/data/a1358132e/c3c7f93539d641b4a9c5d467ba76c5ea/FLAG0ad422e4d [2023-11-12 00:44:43,097 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/data/a1358132e/c3c7f93539d641b4a9c5d467ba76c5ea [2023-11-12 00:44:43,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:44:43,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:44:43,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:43,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:44:43,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:44:43,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74856553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43, skipping insertion in model container [2023-11-12 00:44:43,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,164 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:44:43,363 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_1201af07-19b5-4424-a5c9-e2b4bca941cb/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.i[913,926] [2023-11-12 00:44:43,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:43,460 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:44:43,473 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_1201af07-19b5-4424-a5c9-e2b4bca941cb/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-17.i[913,926] [2023-11-12 00:44:43,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:43,519 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:44:43,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43 WrapperNode [2023-11-12 00:44:43,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:43,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:43,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:44:43,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:44:43,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,573 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 129 [2023-11-12 00:44:43,574 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:43,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:44:43,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:44:43,575 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:44:43,588 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,634 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:44:43,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:44:43,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:44:43,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:44:43,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (1/1) ... [2023-11-12 00:44:43,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:43,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:44:43,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:44:43,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:44:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:44:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:44:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:44:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:44:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:44:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:44:43,901 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:44:43,904 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:44:44,775 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:44:44,782 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:44:44,782 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:44:44,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:44 BoogieIcfgContainer [2023-11-12 00:44:44,785 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:44:44,787 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:44:44,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:44:44,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:44:44,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:44:43" (1/3) ... [2023-11-12 00:44:44,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fe76b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:44, skipping insertion in model container [2023-11-12 00:44:44,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:43" (2/3) ... [2023-11-12 00:44:44,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fe76b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:44, skipping insertion in model container [2023-11-12 00:44:44,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:44" (3/3) ... [2023-11-12 00:44:44,794 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-17.i [2023-11-12 00:44:44,815 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:44:44,815 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:44:44,865 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:44:44,872 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;@3ec7689e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:44:44,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:44:44,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 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 00:44:44,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 00:44:44,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:44,898 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, 1, 1, 1] [2023-11-12 00:44:44,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:44:44,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:44,905 INFO L85 PathProgramCache]: Analyzing trace with hash 558496771, now seen corresponding path program 1 times [2023-11-12 00:44:44,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:44:44,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284650872] [2023-11-12 00:44:44,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:44,928 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 00:44:44,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:44:44,936 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:44:44,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:44:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:45,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:44:45,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:44:45,298 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 00:44:45,298 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:44:45,299 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:44:45,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284650872] [2023-11-12 00:44:45,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284650872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:45,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:45,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:44:45,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334860033] [2023-11-12 00:44:45,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:45,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:44:45,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:44:45,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:44:45,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:44:45,340 INFO L87 Difference]: Start difference. First operand has 61 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 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 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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 00:44:45,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:44:45,386 INFO L93 Difference]: Finished difference Result 115 states and 194 transitions. [2023-11-12 00:44:45,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:44:45,389 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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 119 [2023-11-12 00:44:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:44:45,398 INFO L225 Difference]: With dead ends: 115 [2023-11-12 00:44:45,399 INFO L226 Difference]: Without dead ends: 57 [2023-11-12 00:44:45,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 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 00:44:45,409 INFO L413 NwaCegarLoop]: 84 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, 84 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 00:44:45,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:44:45,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-12 00:44:45,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-11-12 00:44:45,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 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 00:44:45,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2023-11-12 00:44:45,463 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 119 [2023-11-12 00:44:45,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:44:45,464 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2023-11-12 00:44:45,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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 00:44:45,465 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2023-11-12 00:44:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 00:44:45,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:45,484 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, 1, 1, 1] [2023-11-12 00:44:45,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:44:45,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:44:45,701 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:44:45,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:45,702 INFO L85 PathProgramCache]: Analyzing trace with hash 640030975, now seen corresponding path program 1 times [2023-11-12 00:44:45,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:44:45,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482779543] [2023-11-12 00:44:45,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:45,703 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:44:45,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:44:45,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:44:45,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:44:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:46,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:44:46,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:44:46,489 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-12 00:44:46,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:44:46,490 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:44:46,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482779543] [2023-11-12 00:44:46,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482779543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:46,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:46,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:44:46,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956922869] [2023-11-12 00:44:46,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:46,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:44:46,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:44:46,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:44:46,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:44:46,503 INFO L87 Difference]: Start difference. First operand 57 states and 84 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-12 00:44:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:44:47,629 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2023-11-12 00:44:47,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:44:47,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2023-11-12 00:44:47,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:44:47,642 INFO L225 Difference]: With dead ends: 166 [2023-11-12 00:44:47,642 INFO L226 Difference]: Without dead ends: 112 [2023-11-12 00:44:47,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:44:47,645 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 69 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:44:47,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 245 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-12 00:44:47,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-12 00:44:47,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 93. [2023-11-12 00:44:47,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 54 states have internal predecessors, (65), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-12 00:44:47,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 137 transitions. [2023-11-12 00:44:47,676 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 137 transitions. Word has length 119 [2023-11-12 00:44:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:44:47,679 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 137 transitions. [2023-11-12 00:44:47,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-12 00:44:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 137 transitions. [2023-11-12 00:44:47,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-12 00:44:47,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:47,683 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, 1, 1, 1, 1] [2023-11-12 00:44:47,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:44:47,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:44:47,906 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:44:47,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:47,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1847668821, now seen corresponding path program 1 times [2023-11-12 00:44:47,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:44:47,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682307383] [2023-11-12 00:44:47,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:47,909 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 00:44:47,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:44:47,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:44:47,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:44:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:48,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 00:44:48,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:44:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 362 proven. 45 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-11-12 00:44:49,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:44:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 48 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2023-11-12 00:44:49,861 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:44:49,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682307383] [2023-11-12 00:44:49,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682307383] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:44:49,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2093765310] [2023-11-12 00:44:49,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:49,863 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:44:49,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:44:49,865 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:44:49,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-12 00:44:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:50,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-12 00:44:50,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:44:51,571 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 345 proven. 63 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-11-12 00:44:51,571 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:44:52,065 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 48 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2023-11-12 00:44:52,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2093765310] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:44:52,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210070483] [2023-11-12 00:44:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:52,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:44:52,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:44:52,072 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:44:52,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 00:44:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:52,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-12 00:44:52,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:44:53,972 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 360 proven. 72 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-12 00:44:53,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:44:55,036 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 78 proven. 66 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2023-11-12 00:44:55,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210070483] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:44:55,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-12 00:44:55,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 14, 10, 17, 14] total 46 [2023-11-12 00:44:55,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086409774] [2023-11-12 00:44:55,037 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-12 00:44:55,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-12 00:44:55,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:44:55,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-12 00:44:55,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=511, Invalid=1559, Unknown=0, NotChecked=0, Total=2070 [2023-11-12 00:44:55,050 INFO L87 Difference]: Start difference. First operand 93 states and 137 transitions. Second operand has 46 states, 45 states have (on average 2.977777777777778) internal successors, (134), 44 states have internal predecessors, (134), 14 states have call successors, (62), 10 states have call predecessors, (62), 18 states have return successors, (65), 14 states have call predecessors, (65), 14 states have call successors, (65) [2023-11-12 00:45:00,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:00,145 INFO L93 Difference]: Finished difference Result 336 states and 455 transitions. [2023-11-12 00:45:00,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-12 00:45:00,151 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.977777777777778) internal successors, (134), 44 states have internal predecessors, (134), 14 states have call successors, (62), 10 states have call predecessors, (62), 18 states have return successors, (65), 14 states have call predecessors, (65), 14 states have call successors, (65) Word has length 120 [2023-11-12 00:45:00,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:00,159 INFO L225 Difference]: With dead ends: 336 [2023-11-12 00:45:00,160 INFO L226 Difference]: Without dead ends: 282 [2023-11-12 00:45:00,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 672 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2218 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1660, Invalid=5146, Unknown=0, NotChecked=0, Total=6806 [2023-11-12 00:45:00,165 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 634 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:00,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 637 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-12 00:45:00,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-12 00:45:00,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 213. [2023-11-12 00:45:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 136 states have (on average 1.1470588235294117) internal successors, (156), 137 states have internal predecessors, (156), 62 states have call successors, (62), 14 states have call predecessors, (62), 14 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-12 00:45:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 280 transitions. [2023-11-12 00:45:00,211 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 280 transitions. Word has length 120 [2023-11-12 00:45:00,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:00,213 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 280 transitions. [2023-11-12 00:45:00,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.977777777777778) internal successors, (134), 44 states have internal predecessors, (134), 14 states have call successors, (62), 10 states have call predecessors, (62), 18 states have return successors, (65), 14 states have call predecessors, (65), 14 states have call successors, (65) [2023-11-12 00:45:00,213 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 280 transitions. [2023-11-12 00:45:00,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-12 00:45:00,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:00,217 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, 1, 1, 1, 1] [2023-11-12 00:45:00,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:45:00,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:45:00,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 00:45:00,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:45:00,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:45:00,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:00,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1767240105, now seen corresponding path program 1 times [2023-11-12 00:45:00,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:45:00,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26715497] [2023-11-12 00:45:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:00,834 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 00:45:00,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:45:00,836 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:45:00,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1201af07-19b5-4424-a5c9-e2b4bca941cb/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 00:45:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:01,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-12 00:45:01,034 INFO L285 TraceCheckSpWp]: Computing forward predicates...