./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.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_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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_66460368-b6c0-4225-be6c-b8b30095b52d/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 e9138565c6402fe33fc23db0a8dcce6caed4594b0a4246e51003a3c6bc48fecd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:11:35,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:11:35,188 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:11:35,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:11:35,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:11:35,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:11:35,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:11:35,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:11:35,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:11:35,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:11:35,226 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:11:35,226 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:11:35,227 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:11:35,227 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:11:35,228 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:11:35,229 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:11:35,229 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:11:35,230 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:11:35,231 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:11:35,231 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:11:35,232 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:11:35,233 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:11:35,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:11:35,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:11:35,235 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:11:35,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:11:35,236 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:11:35,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:11:35,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:11:35,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:11:35,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:11:35,239 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:11:35,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:11:35,240 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:11:35,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:11:35,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:11:35,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:11:35,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:11:35,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:11:35,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:11:35,243 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:11:35,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:11:35,244 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:11:35,244 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:11:35,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:11:35,245 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_66460368-b6c0-4225-be6c-b8b30095b52d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9138565c6402fe33fc23db0a8dcce6caed4594b0a4246e51003a3c6bc48fecd [2023-11-12 00:11:35,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:11:35,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:11:35,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:11:35,554 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:11:35,555 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:11:35,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i [2023-11-12 00:11:38,708 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:11:38,948 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:11:38,949 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i [2023-11-12 00:11:38,958 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/data/4f0e678d0/0b071e8e61f14c2b9a5f183c92e8fe2d/FLAGb297f0fad [2023-11-12 00:11:38,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/data/4f0e678d0/0b071e8e61f14c2b9a5f183c92e8fe2d [2023-11-12 00:11:38,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:11:38,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:11:38,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:38,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:11:38,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:11:38,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:38" (1/1) ... [2023-11-12 00:11:38,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d0cd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:38, skipping insertion in model container [2023-11-12 00:11:38,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:38" (1/1) ... [2023-11-12 00:11:39,032 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:11:39,194 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_66460368-b6c0-4225-be6c-b8b30095b52d/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i[919,932] [2023-11-12 00:11:39,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:39,302 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:11:39,320 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_66460368-b6c0-4225-be6c-b8b30095b52d/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i[919,932] [2023-11-12 00:11:39,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:39,389 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:11:39,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39 WrapperNode [2023-11-12 00:11:39,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:39,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:39,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:11:39,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:11:39,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,485 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 229 [2023-11-12 00:11:39,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:39,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:11:39,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:11:39,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:11:39,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:11:39,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:11:39,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:11:39,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:11:39,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (1/1) ... [2023-11-12 00:11:39,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:11:39,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:39,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:11:39,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:11:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:11:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:11:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:11:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:11:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:11:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:11:39,793 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:11:39,796 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:11:40,324 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:11:40,692 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:11:40,693 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:11:40,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:40 BoogieIcfgContainer [2023-11-12 00:11:40,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:11:40,701 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:11:40,701 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:11:40,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:11:40,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:11:38" (1/3) ... [2023-11-12 00:11:40,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ef03bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:40, skipping insertion in model container [2023-11-12 00:11:40,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:39" (2/3) ... [2023-11-12 00:11:40,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ef03bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:40, skipping insertion in model container [2023-11-12 00:11:40,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:40" (3/3) ... [2023-11-12 00:11:40,712 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i [2023-11-12 00:11:40,735 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:11:40,735 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:11:40,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:11:40,817 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;@6c2860db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:11:40,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:11:40,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-12 00:11:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-12 00:11:40,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:40,846 INFO L195 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:11:40,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:11:40,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:40,854 INFO L85 PathProgramCache]: Analyzing trace with hash 90537419, now seen corresponding path program 1 times [2023-11-12 00:11:40,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:40,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161471750] [2023-11-12 00:11:40,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:40,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:41,150 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:11:41,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1763870238] [2023-11-12 00:11:41,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:41,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:11:41,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:41,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:11:41,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:11:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:11:41,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:11:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-11-12 00:11:41,731 WARN L124 FreeRefinementEngine]: Strategy SIFA_TAIPAN was unsuccessful and could not determine trace feasibility [2023-11-12 00:11:41,733 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-11-12 00:11:41,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:11:41,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:41,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:11:41,956 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:11:41,960 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:11:42,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:11:42 BoogieIcfgContainer [2023-11-12 00:11:42,020 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:11:42,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:11:42,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:11:42,021 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:11:42,022 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:40" (3/4) ... [2023-11-12 00:11:42,024 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:11:42,025 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:11:42,027 INFO L158 Benchmark]: Toolchain (without parser) took 3050.10ms. Allocated memory is still 184.5MB. Free memory was 137.4MB in the beginning and 96.5MB in the end (delta: 40.9MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2023-11-12 00:11:42,027 INFO L158 Benchmark]: CDTParser took 1.57ms. Allocated memory is still 121.6MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:11:42,028 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.47ms. Allocated memory is still 184.5MB. Free memory was 137.4MB in the beginning and 121.3MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:11:42,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.80ms. Allocated memory is still 184.5MB. Free memory was 121.3MB in the beginning and 116.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:11:42,037 INFO L158 Benchmark]: Boogie Preprocessor took 64.05ms. Allocated memory is still 184.5MB. Free memory was 116.5MB in the beginning and 114.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:11:42,038 INFO L158 Benchmark]: RCFGBuilder took 1145.18ms. Allocated memory is still 184.5MB. Free memory was 114.4MB in the beginning and 141.7MB in the end (delta: -27.3MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-12 00:11:42,038 INFO L158 Benchmark]: TraceAbstraction took 1319.39ms. Allocated memory is still 184.5MB. Free memory was 140.5MB in the beginning and 96.5MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-12 00:11:42,039 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 184.5MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:11:42,049 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.57ms. Allocated memory is still 121.6MB. Free memory is still 67.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.47ms. Allocated memory is still 184.5MB. Free memory was 137.4MB in the beginning and 121.3MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.80ms. Allocated memory is still 184.5MB. Free memory was 121.3MB in the beginning and 116.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.05ms. Allocated memory is still 184.5MB. Free memory was 116.5MB in the beginning and 114.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1145.18ms. Allocated memory is still 184.5MB. Free memory was 114.4MB in the beginning and 141.7MB in the end (delta: -27.3MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1319.39ms. Allocated memory is still 184.5MB. Free memory was 140.5MB in the beginning and 96.5MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 184.5MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of someBinaryFLOATComparisonOperation at line 188, overapproximation of someBinaryDOUBLEComparisonOperation at line 74. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 16; [L23] signed long int var_1_4 = -64; [L24] signed char var_1_9 = 10; [L25] unsigned char var_1_10 = 0; [L26] signed char var_1_11 = -1; [L27] unsigned short int var_1_12 = 10000; [L28] float var_1_13 = 5.4; [L29] float var_1_14 = 1.4; [L30] unsigned short int var_1_18 = 32; [L31] double var_1_20 = 1.5; [L32] double var_1_21 = 2.75; [L33] unsigned char var_1_22 = 5; [L34] unsigned short int var_1_23 = 55712; [L35] unsigned char var_1_24 = 5; [L36] signed short int var_1_25 = 10; [L37] float var_1_26 = 64.2; [L38] unsigned short int var_1_27 = 64; [L39] unsigned char var_1_31 = 0; [L40] float var_1_33 = 2.5; [L41] float var_1_34 = 50.5; [L42] unsigned long int var_1_35 = 10; [L43] unsigned char var_1_36 = 0; [L44] unsigned long int var_1_37 = 2924974040; [L45] unsigned char var_1_38 = 1; [L46] unsigned char var_1_39 = 0; [L47] unsigned char var_1_40 = 0; [L48] unsigned char var_1_41 = 0; [L49] signed long int var_1_43 = 256; [L50] unsigned char var_1_44 = 0; [L51] unsigned char var_1_45 = 0; [L52] unsigned long int var_1_46 = 32; [L53] unsigned long int var_1_47 = 1000000000; [L54] unsigned long int last_1_var_1_1 = 16; [L55] signed char last_1_var_1_9 = 10; [L56] unsigned short int last_1_var_1_12 = 10000; [L57] double last_1_var_1_20 = 1.5; [L58] unsigned char last_1_var_1_22 = 5; [L59] signed short int last_1_var_1_25 = 10; [L225] isInitial = 1 [L226] FCALL initially() [L227] COND TRUE 1 [L228] CALL updateLastVariables() [L213] last_1_var_1_1 = var_1_1 [L214] last_1_var_1_9 = var_1_9 [L215] last_1_var_1_12 = var_1_12 [L216] last_1_var_1_20 = var_1_20 [L217] last_1_var_1_22 = var_1_22 [L218] last_1_var_1_25 = var_1_25 [L228] RET updateLastVariables() [L229] CALL updateVariables() [L156] var_1_4 = __VERIFIER_nondet_long() [L157] CALL assume_abort_if_not(var_1_4 >= -2147483648) [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not(var_1_4 >= -2147483648) [L158] CALL assume_abort_if_not(var_1_4 <= 2147483647) [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not(var_1_4 <= 2147483647) [L159] CALL assume_abort_if_not(var_1_4 != 0) [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not(var_1_4 != 0) [L160] var_1_10 = __VERIFIER_nondet_uchar() [L161] CALL assume_abort_if_not(var_1_10 >= 0) [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_10 >= 0) [L162] CALL assume_abort_if_not(var_1_10 <= 1) [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_10 <= 1) [L163] var_1_11 = __VERIFIER_nondet_char() [L164] CALL assume_abort_if_not(var_1_11 >= -63) [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not(var_1_11 >= -63) [L165] CALL assume_abort_if_not(var_1_11 <= 63) [L20] COND FALSE !(!cond) [L165] RET assume_abort_if_not(var_1_11 <= 63) [L166] var_1_13 = __VERIFIER_nondet_float() [L167] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L167] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) [L168] var_1_14 = __VERIFIER_nondet_float() [L169] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) [L170] var_1_18 = __VERIFIER_nondet_ushort() [L171] CALL assume_abort_if_not(var_1_18 >= 0) [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not(var_1_18 >= 0) [L172] CALL assume_abort_if_not(var_1_18 <= 32767) [L20] COND FALSE !(!cond) [L172] RET assume_abort_if_not(var_1_18 <= 32767) [L173] var_1_21 = __VERIFIER_nondet_double() [L174] CALL assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L174] RET assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) [L175] var_1_23 = __VERIFIER_nondet_ushort() [L176] CALL assume_abort_if_not(var_1_23 >= 32767) [L20] COND FALSE !(!cond) [L176] RET assume_abort_if_not(var_1_23 >= 32767) [L177] CALL assume_abort_if_not(var_1_23 <= 65535) [L20] COND FALSE !(!cond) [L177] RET assume_abort_if_not(var_1_23 <= 65535) [L178] var_1_24 = __VERIFIER_nondet_uchar() [L179] CALL assume_abort_if_not(var_1_24 >= 0) [L20] COND FALSE !(!cond) [L179] RET assume_abort_if_not(var_1_24 >= 0) [L180] CALL assume_abort_if_not(var_1_24 <= 254) [L20] COND FALSE !(!cond) [L180] RET assume_abort_if_not(var_1_24 <= 254) [L181] var_1_26 = __VERIFIER_nondet_float() [L182] CALL assume_abort_if_not((var_1_26 >= -922337.2036854776000e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 9223372.036854776000e+12F && var_1_26 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L182] RET assume_abort_if_not((var_1_26 >= -922337.2036854776000e+13F && var_1_26 <= -1.0e-20F) || (var_1_26 <= 9223372.036854776000e+12F && var_1_26 >= 1.0e-20F )) [L183] CALL assume_abort_if_not(var_1_26 != 0.0F) [L20] COND FALSE !(!cond) [L183] RET assume_abort_if_not(var_1_26 != 0.0F) [L184] var_1_31 = __VERIFIER_nondet_uchar() [L185] CALL assume_abort_if_not(var_1_31 >= 0) [L20] COND FALSE !(!cond) [L185] RET assume_abort_if_not(var_1_31 >= 0) [L186] CALL assume_abort_if_not(var_1_31 <= 1) [L20] COND FALSE !(!cond) [L186] RET assume_abort_if_not(var_1_31 <= 1) [L187] var_1_34 = __VERIFIER_nondet_float() [L188] CALL assume_abort_if_not((var_1_34 >= -922337.2036854765600e+13F && var_1_34 <= -1.0e-20F) || (var_1_34 <= 9223372.036854765600e+12F && var_1_34 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L188] RET assume_abort_if_not((var_1_34 >= -922337.2036854765600e+13F && var_1_34 <= -1.0e-20F) || (var_1_34 <= 9223372.036854765600e+12F && var_1_34 >= 1.0e-20F )) [L189] var_1_36 = __VERIFIER_nondet_uchar() [L190] CALL assume_abort_if_not(var_1_36 >= 0) [L20] COND FALSE !(!cond) [L190] RET assume_abort_if_not(var_1_36 >= 0) [L191] CALL assume_abort_if_not(var_1_36 <= 1) [L20] COND FALSE !(!cond) [L191] RET assume_abort_if_not(var_1_36 <= 1) [L192] var_1_37 = __VERIFIER_nondet_ulong() [L193] CALL assume_abort_if_not(var_1_37 >= 2147483647) [L20] COND FALSE !(!cond) [L193] RET assume_abort_if_not(var_1_37 >= 2147483647) [L194] CALL assume_abort_if_not(var_1_37 <= 4294967294) [L20] COND FALSE !(!cond) [L194] RET assume_abort_if_not(var_1_37 <= 4294967294) [L195] var_1_39 = __VERIFIER_nondet_uchar() [L196] CALL assume_abort_if_not(var_1_39 >= 0) [L20] COND FALSE !(!cond) [L196] RET assume_abort_if_not(var_1_39 >= 0) [L197] CALL assume_abort_if_not(var_1_39 <= 0) [L20] COND FALSE !(!cond) [L197] RET assume_abort_if_not(var_1_39 <= 0) [L198] var_1_40 = __VERIFIER_nondet_uchar() [L199] CALL assume_abort_if_not(var_1_40 >= 1) [L20] COND FALSE !(!cond) [L199] RET assume_abort_if_not(var_1_40 >= 1) [L200] CALL assume_abort_if_not(var_1_40 <= 1) [L20] COND FALSE !(!cond) [L200] RET assume_abort_if_not(var_1_40 <= 1) [L201] var_1_43 = __VERIFIER_nondet_long() [L202] CALL assume_abort_if_not(var_1_43 >= -2147483648) [L20] COND FALSE !(!cond) [L202] RET assume_abort_if_not(var_1_43 >= -2147483648) [L203] CALL assume_abort_if_not(var_1_43 <= 2147483647) [L20] COND FALSE !(!cond) [L203] RET assume_abort_if_not(var_1_43 <= 2147483647) [L204] CALL assume_abort_if_not(var_1_43 != 0) [L20] COND FALSE !(!cond) [L204] RET assume_abort_if_not(var_1_43 != 0) [L205] var_1_44 = __VERIFIER_nondet_uchar() [L206] CALL assume_abort_if_not(var_1_44 >= 1) [L20] COND FALSE !(!cond) [L206] RET assume_abort_if_not(var_1_44 >= 1) [L207] CALL assume_abort_if_not(var_1_44 <= 1) [L20] COND FALSE !(!cond) [L207] RET assume_abort_if_not(var_1_44 <= 1) [L208] var_1_45 = __VERIFIER_nondet_uchar() [L209] CALL assume_abort_if_not(var_1_45 >= 0) [L20] COND FALSE !(!cond) [L209] RET assume_abort_if_not(var_1_45 >= 0) [L210] CALL assume_abort_if_not(var_1_45 <= 0) [L20] COND FALSE !(!cond) [L210] RET assume_abort_if_not(var_1_45 <= 0) [L229] RET updateVariables() [L230] CALL step() [L63] COND FALSE !(! var_1_10) [L70] var_1_9 = var_1_11 [L72] unsigned char stepLocal_2 = var_1_10; [L73] signed long int stepLocal_1 = last_1_var_1_22; [L74] COND FALSE !(((var_1_13 - var_1_14) != ((((last_1_var_1_20) < (last_1_var_1_20)) ? (last_1_var_1_20) : (last_1_var_1_20)))) || stepLocal_2) [L81] unsigned long int stepLocal_5 = last_1_var_1_1; [L82] signed long int stepLocal_4 = var_1_4 + last_1_var_1_9; [L83] unsigned short int stepLocal_3 = var_1_18; [L84] COND FALSE !(stepLocal_5 > last_1_var_1_12) [L95] var_1_22 = var_1_24 [L97] COND FALSE !(var_1_11 > (var_1_22 * (var_1_12 + var_1_22))) [L100] COND FALSE !((var_1_20 / var_1_26) > var_1_13) [L103] var_1_25 = var_1_11 [L105] signed long int stepLocal_0 = (var_1_25 + var_1_9) / var_1_4; [L106] COND FALSE !(stepLocal_0 == var_1_25) [L109] COND TRUE var_1_9 < (var_1_22 - ((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25)))) [L110] COND FALSE !(\read(var_1_31)) [L114] COND TRUE var_1_1 < var_1_12 [L115] var_1_33 = var_1_34 [L119] COND TRUE \read(var_1_31) [L120] var_1_35 = ((((var_1_22) > (var_1_25)) ? (var_1_22) : (var_1_25))) [L128] COND FALSE !(var_1_20 >= (- 255.45f)) [L131] COND FALSE !(\read(var_1_40)) [L135] COND FALSE !(((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22))) < (var_1_12 % var_1_43)) [L138] var_1_41 = var_1_44 [L140] COND TRUE \read(var_1_36) [L141] var_1_46 = (var_1_12 + ((((var_1_22) < 0 ) ? -(var_1_22) : (var_1_22)))) [L145] COND TRUE \read(var_1_44) [L146] COND TRUE \read(var_1_45) [L147] COND FALSE !(\read(var_1_41)) [L230] RET step() [L231] CALL, EXPR property() [L221-L222] return ((((((((var_1_25 + var_1_9) / var_1_4) == var_1_25) ? (var_1_1 == ((unsigned long int) (((((var_1_12) < (var_1_22)) ? (var_1_12) : (var_1_22))) + var_1_22))) : 1) && ((! var_1_10) ? ((((((last_1_var_1_22) > (last_1_var_1_25)) ? (last_1_var_1_22) : (last_1_var_1_25))) >= last_1_var_1_12) ? (var_1_9 == ((signed char) (-16 + var_1_11))) : (var_1_9 == ((signed char) var_1_11))) : (var_1_9 == ((signed char) var_1_11)))) && ((((var_1_13 - var_1_14) != ((((last_1_var_1_20) < (last_1_var_1_20)) ? (last_1_var_1_20) : (last_1_var_1_20)))) || var_1_10) ? ((last_1_var_1_22 >= last_1_var_1_12) ? (var_1_12 == ((unsigned short int) (((((last_1_var_1_22) < (last_1_var_1_22)) ? (last_1_var_1_22) : (last_1_var_1_22))) + 32))) : (var_1_12 == ((unsigned short int) last_1_var_1_22))) : 1)) && ((var_1_11 > (var_1_22 * (var_1_12 + var_1_22))) ? (var_1_20 == ((double) var_1_21)) : 1)) && ((last_1_var_1_1 > last_1_var_1_12) ? ((last_1_var_1_1 >= (var_1_4 + last_1_var_1_9)) ? ((var_1_18 == (var_1_23 - 8)) ? (var_1_22 == ((unsigned char) var_1_24)) : (var_1_22 == ((unsigned char) var_1_24))) : (var_1_22 == ((unsigned char) var_1_24))) : (var_1_22 == ((unsigned char) var_1_24)))) && (((var_1_20 / var_1_26) > var_1_13) ? (var_1_25 == ((signed short int) ((((((((var_1_9) < (var_1_24)) ? (var_1_9) : (var_1_24)))) > (2)) ? (((((var_1_9) < (var_1_24)) ? (var_1_9) : (var_1_24)))) : (2))))) : (var_1_25 == ((signed short int) var_1_11))) ; [L231] RET, EXPR property() [L231] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 36, 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=64occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 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 00:11:42,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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_66460368-b6c0-4225-be6c-b8b30095b52d/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 e9138565c6402fe33fc23db0a8dcce6caed4594b0a4246e51003a3c6bc48fecd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:11:44,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:11:45,026 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:11:45,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:11:45,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:11:45,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:11:45,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:11:45,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:11:45,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:11:45,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:11:45,090 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:11:45,091 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:11:45,091 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:11:45,093 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:11:45,093 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:11:45,094 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:11:45,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:11:45,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:11:45,096 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:11:45,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:11:45,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:11:45,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:11:45,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:11:45,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:11:45,099 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:11:45,100 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:11:45,100 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:11:45,100 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:11:45,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:11:45,101 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:11:45,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:11:45,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:11:45,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:11:45,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:11:45,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:11:45,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:11:45,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:11:45,104 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:11:45,105 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:11:45,106 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:11:45,106 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:11:45,106 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:11:45,107 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_66460368-b6c0-4225-be6c-b8b30095b52d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9138565c6402fe33fc23db0a8dcce6caed4594b0a4246e51003a3c6bc48fecd [2023-11-12 00:11:45,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:11:45,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:11:45,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:11:45,597 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:11:45,598 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:11:45,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i [2023-11-12 00:11:48,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:11:49,254 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:11:49,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i [2023-11-12 00:11:49,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/data/eac2435cf/f522b6b835644b73880d39cbd0e83b0f/FLAG03179ad7f [2023-11-12 00:11:49,280 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/data/eac2435cf/f522b6b835644b73880d39cbd0e83b0f [2023-11-12 00:11:49,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:11:49,285 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:11:49,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:49,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:11:49,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:11:49,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68095efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49, skipping insertion in model container [2023-11-12 00:11:49,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,345 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:11:49,497 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_66460368-b6c0-4225-be6c-b8b30095b52d/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i[919,932] [2023-11-12 00:11:49,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:49,648 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:11:49,669 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_66460368-b6c0-4225-be6c-b8b30095b52d/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i[919,932] [2023-11-12 00:11:49,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:49,761 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:11:49,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49 WrapperNode [2023-11-12 00:11:49,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:49,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:49,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:11:49,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:11:49,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,829 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,879 INFO L138 Inliner]: procedures = 27, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 226 [2023-11-12 00:11:49,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:49,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:11:49,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:11:49,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:11:49,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,917 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:49,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:11:49,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:11:49,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:11:49,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:11:49,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (1/1) ... [2023-11-12 00:11:50,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:11:50,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:50,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:11:50,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:11:50,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:11:50,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:11:50,080 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:11:50,081 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:11:50,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:11:50,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:11:50,194 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:11:50,197 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:11:58,397 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:11:58,408 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:11:58,409 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:11:58,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:58 BoogieIcfgContainer [2023-11-12 00:11:58,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:11:58,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:11:58,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:11:58,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:11:58,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:11:49" (1/3) ... [2023-11-12 00:11:58,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8c7c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:58, skipping insertion in model container [2023-11-12 00:11:58,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:49" (2/3) ... [2023-11-12 00:11:58,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8c7c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:58, skipping insertion in model container [2023-11-12 00:11:58,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:58" (3/3) ... [2023-11-12 00:11:58,426 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-26.i [2023-11-12 00:11:58,448 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:11:58,449 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:11:58,525 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:11:58,533 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;@3df75d6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:11:58,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:11:58,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 61 states have (on average 1.459016393442623) internal successors, (89), 62 states have internal predecessors, (89), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-12 00:11:58,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-12 00:11:58,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:58,560 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:11:58,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:11:58,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:58,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1818620324, now seen corresponding path program 1 times [2023-11-12 00:11:58,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:58,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212668250] [2023-11-12 00:11:58,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:58,580 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 00:11:58,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:58,586 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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 00:11:58,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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 00:11:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:59,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:12:00,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 854 proven. 0 refuted. 0 times theorem prover too weak. 1666 trivial. 0 not checked. [2023-11-12 00:12:00,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:12:00,117 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:12:00,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212668250] [2023-11-12 00:12:00,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212668250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:00,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:00,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:12:00,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611117800] [2023-11-12 00:12:00,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:00,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:12:00,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:12:00,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:12:00,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:12:00,159 INFO L87 Difference]: Start difference. First operand has 100 states, 61 states have (on average 1.459016393442623) internal successors, (89), 62 states have internal predecessors, (89), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-12 00:12:00,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:00,208 INFO L93 Difference]: Finished difference Result 193 states and 352 transitions. [2023-11-12 00:12:00,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:12:00,213 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 224 [2023-11-12 00:12:00,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:00,226 INFO L225 Difference]: With dead ends: 193 [2023-11-12 00:12:00,226 INFO L226 Difference]: Without dead ends: 96 [2023-11-12 00:12:00,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 223 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 00:12:00,242 INFO L413 NwaCegarLoop]: 153 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, 153 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 00:12:00,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:12:00,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-11-12 00:12:00,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-11-12 00:12:00,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-12 00:12:00,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 153 transitions. [2023-11-12 00:12:00,306 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 153 transitions. Word has length 224 [2023-11-12 00:12:00,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:00,307 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 153 transitions. [2023-11-12 00:12:00,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-12 00:12:00,307 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 153 transitions. [2023-11-12 00:12:00,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-12 00:12:00,313 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:00,313 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:12:00,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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 00:12:00,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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 00:12:00,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:00,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:00,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1957344860, now seen corresponding path program 1 times [2023-11-12 00:12:00,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:12:00,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238205889] [2023-11-12 00:12:00,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:00,537 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 00:12:00,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:12:00,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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 00:12:00,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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 00:12:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:01,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:12:01,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 539 proven. 93 refuted. 0 times theorem prover too weak. 1888 trivial. 0 not checked. [2023-11-12 00:12:04,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:12:05,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-11-12 00:12:05,151 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:12:05,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238205889] [2023-11-12 00:12:05,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238205889] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-12 00:12:05,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:12:05,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-11-12 00:12:05,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6418926] [2023-11-12 00:12:05,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:05,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:12:05,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:12:05,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:12:05,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-12 00:12:05,158 INFO L87 Difference]: Start difference. First operand 96 states and 153 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-11-12 00:12:09,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:12:11,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:12:13,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:12:15,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:12:15,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:15,707 INFO L93 Difference]: Finished difference Result 229 states and 365 transitions. [2023-11-12 00:12:15,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:12:15,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 224 [2023-11-12 00:12:15,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:15,717 INFO L225 Difference]: With dead ends: 229 [2023-11-12 00:12:15,718 INFO L226 Difference]: Without dead ends: 136 [2023-11-12 00:12:15,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-12 00:12:15,720 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 102 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:15,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 468 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 4 Unknown, 0 Unchecked, 10.4s Time] [2023-11-12 00:12:15,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-12 00:12:15,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2023-11-12 00:12:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 91 states have (on average 1.4725274725274726) internal successors, (134), 92 states have internal predecessors, (134), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-12 00:12:15,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 212 transitions. [2023-11-12 00:12:15,783 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 212 transitions. Word has length 224 [2023-11-12 00:12:15,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:15,787 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 212 transitions. [2023-11-12 00:12:15,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-11-12 00:12:15,791 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 212 transitions. [2023-11-12 00:12:15,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-12 00:12:15,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:15,796 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:12:15,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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 00:12:16,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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 00:12:16,022 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:16,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:16,023 INFO L85 PathProgramCache]: Analyzing trace with hash -607539390, now seen corresponding path program 1 times [2023-11-12 00:12:16,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:12:16,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555879206] [2023-11-12 00:12:16,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:16,025 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 00:12:16,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:12:16,026 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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 00:12:16,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66460368-b6c0-4225-be6c-b8b30095b52d/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 00:12:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:17,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:12:17,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:20,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-11-12 00:12:20,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:12:20,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:12:20,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555879206] [2023-11-12 00:12:20,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555879206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:20,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:20,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:12:20,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041495771] [2023-11-12 00:12:20,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:20,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:12:20,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:12:20,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:12:20,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:12:20,293 INFO L87 Difference]: Start difference. First operand 133 states and 212 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-11-12 00:12:24,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:12:26,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:12:30,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:12:32,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:12:34,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:12:36,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 00:12:38,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]