./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c418b0c8344417842d256c30105b463d7c4d2db0994323aaa603b3ca1dc8de4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:45:52,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:45:52,451 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:45:52,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:45:52,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:45:52,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:45:52,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:45:52,509 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:45:52,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:45:52,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:45:52,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:45:52,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:45:52,523 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:45:52,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:45:52,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:45:52,526 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:45:52,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:45:52,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:45:52,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:45:52,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:45:52,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:45:52,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:45:52,529 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:45:52,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:45:52,530 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:45:52,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:45:52,531 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:45:52,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:45:52,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:45:52,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:45:52,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:45:52,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:45:52,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:45:52,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:45:52,535 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:45:52,535 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:45:52,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:45:52,536 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:45:52,536 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:45:52,536 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c418b0c8344417842d256c30105b463d7c4d2db0994323aaa603b3ca1dc8de4 [2023-11-06 22:45:52,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:45:52,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:45:52,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:45:52,881 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:45:52,882 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:45:52,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-06 22:45:56,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:45:56,356 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:45:56,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-06 22:45:56,367 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/data/36ef4cfb7/74502a0f752b476bb168d7e07a91202d/FLAGc13b90454 [2023-11-06 22:45:56,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/data/36ef4cfb7/74502a0f752b476bb168d7e07a91202d [2023-11-06 22:45:56,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:45:56,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:45:56,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:45:56,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:45:56,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:45:56,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c39e4bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56, skipping insertion in model container [2023-11-06 22:45:56,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,435 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:45:56,651 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_573526fa-919d-4a88-988d-9a735f335b41/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i[917,930] [2023-11-06 22:45:56,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:45:56,725 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:45:56,747 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_573526fa-919d-4a88-988d-9a735f335b41/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i[917,930] [2023-11-06 22:45:56,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:45:56,793 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:45:56,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56 WrapperNode [2023-11-06 22:45:56,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:45:56,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:45:56,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:45:56,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:45:56,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,858 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 135 [2023-11-06 22:45:56,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:45:56,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:45:56,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:45:56,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:45:56,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,885 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:45:56,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:45:56,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:45:56,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:45:56,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (1/1) ... [2023-11-06 22:45:56,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:45:56,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:45:56,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:45:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:45:56,982 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:45:56,983 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:45:56,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:45:56,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:45:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:45:56,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:45:57,079 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:45:57,083 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:45:57,516 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:45:57,524 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:45:57,524 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:45:57,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:45:57 BoogieIcfgContainer [2023-11-06 22:45:57,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:45:57,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:45:57,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:45:57,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:45:57,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:45:56" (1/3) ... [2023-11-06 22:45:57,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f65d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:45:57, skipping insertion in model container [2023-11-06 22:45:57,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:45:56" (2/3) ... [2023-11-06 22:45:57,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f65d24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:45:57, skipping insertion in model container [2023-11-06 22:45:57,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:45:57" (3/3) ... [2023-11-06 22:45:57,539 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-06 22:45:57,562 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:45:57,562 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:45:57,633 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:45:57,642 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7c2b29ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:45:57,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:45:57,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:45:57,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 22:45:57,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:57,663 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:57,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:57,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:57,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1608533642, now seen corresponding path program 1 times [2023-11-06 22:45:57,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:57,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908617170] [2023-11-06 22:45:57,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:57,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:45:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:45:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:45:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:45:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:45:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:45:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:45:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:45:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:45:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:45:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:45:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:45:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:45:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:45:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:45:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-06 22:45:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:45:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:45:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-06 22:45:58,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:45:58,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908617170] [2023-11-06 22:45:58,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908617170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:45:58,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:45:58,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:45:58,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377014410] [2023-11-06 22:45:58,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:45:58,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:45:58,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:45:58,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:45:58,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:45:58,315 INFO L87 Difference]: Start difference. First operand has 56 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 37 states have internal predecessors, (50), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-06 22:45:58,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:45:58,368 INFO L93 Difference]: Finished difference Result 105 states and 179 transitions. [2023-11-06 22:45:58,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:45:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2023-11-06 22:45:58,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:45:58,379 INFO L225 Difference]: With dead ends: 105 [2023-11-06 22:45:58,379 INFO L226 Difference]: Without dead ends: 52 [2023-11-06 22:45:58,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:45:58,390 INFO L413 NwaCegarLoop]: 77 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, 77 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 [2023-11-06 22:45:58,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:45:58,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-06 22:45:58,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-06 22:45:58,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:45:58,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2023-11-06 22:45:58,456 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 111 [2023-11-06 22:45:58,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:45:58,457 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2023-11-06 22:45:58,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-06 22:45:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2023-11-06 22:45:58,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 22:45:58,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:45:58,463 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:45:58,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:45:58,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:45:58,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:45:58,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1791989772, now seen corresponding path program 1 times [2023-11-06 22:45:58,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:45:58,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394111734] [2023-11-06 22:45:58,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:45:58,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:45:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:46:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:46:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:46:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:46:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:46:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:46:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:46:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:46:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:46:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:46:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:46:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:46:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:46:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:46:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:46:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-06 22:46:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:46:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-06 22:46:01,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:01,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394111734] [2023-11-06 22:46:01,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394111734] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:01,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:01,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:46:01,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005832934] [2023-11-06 22:46:01,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:01,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:46:01,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:01,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:46:01,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:01,752 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-06 22:46:02,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:02,433 INFO L93 Difference]: Finished difference Result 129 states and 185 transitions. [2023-11-06 22:46:02,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:46:02,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 111 [2023-11-06 22:46:02,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:02,437 INFO L225 Difference]: With dead ends: 129 [2023-11-06 22:46:02,438 INFO L226 Difference]: Without dead ends: 80 [2023-11-06 22:46:02,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:46:02,440 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 144 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:02,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 139 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:46:02,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-06 22:46:02,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 59. [2023-11-06 22:46:02,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:46:02,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 84 transitions. [2023-11-06 22:46:02,464 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 84 transitions. Word has length 111 [2023-11-06 22:46:02,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:02,465 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 84 transitions. [2023-11-06 22:46:02,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-06 22:46:02,466 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 84 transitions. [2023-11-06 22:46:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 22:46:02,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:02,468 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:02,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:46:02,469 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:02,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash -727970162, now seen corresponding path program 1 times [2023-11-06 22:46:02,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:02,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141910071] [2023-11-06 22:46:02,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:02,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:46:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:46:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:46:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:46:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:46:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:46:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:46:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:46:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:46:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:46:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:46:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:46:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:46:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:46:02,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:46:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-06 22:46:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:46:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-06 22:46:02,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:02,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141910071] [2023-11-06 22:46:02,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141910071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:02,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:02,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:46:02,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782353098] [2023-11-06 22:46:02,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:02,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:46:02,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:02,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:46:02,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:46:02,964 INFO L87 Difference]: Start difference. First operand 59 states and 84 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:46:03,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:03,208 INFO L93 Difference]: Finished difference Result 172 states and 247 transitions. [2023-11-06 22:46:03,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:46:03,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2023-11-06 22:46:03,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:03,212 INFO L225 Difference]: With dead ends: 172 [2023-11-06 22:46:03,212 INFO L226 Difference]: Without dead ends: 116 [2023-11-06 22:46:03,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:46:03,215 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 54 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:03,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 201 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:46:03,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-06 22:46:03,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 108. [2023-11-06 22:46:03,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 69 states have internal predecessors, (87), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:46:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2023-11-06 22:46:03,259 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 111 [2023-11-06 22:46:03,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:03,260 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2023-11-06 22:46:03,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:46:03,260 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2023-11-06 22:46:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 22:46:03,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:03,263 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:03,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:46:03,263 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:03,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:03,264 INFO L85 PathProgramCache]: Analyzing trace with hash 151475453, now seen corresponding path program 1 times [2023-11-06 22:46:03,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:03,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724881036] [2023-11-06 22:46:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:03,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:46:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:46:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:46:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:46:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:46:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:46:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:46:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:46:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:46:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:46:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:46:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:46:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:46:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:46:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:46:03,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-06 22:46:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:46:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:03,533 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-06 22:46:03,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:03,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724881036] [2023-11-06 22:46:03,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724881036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:03,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:03,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:46:03,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113456948] [2023-11-06 22:46:03,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:03,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:46:03,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:03,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:46:03,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:46:03,538 INFO L87 Difference]: Start difference. First operand 108 states and 155 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:46:03,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:03,705 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2023-11-06 22:46:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:46:03,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2023-11-06 22:46:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:03,709 INFO L225 Difference]: With dead ends: 183 [2023-11-06 22:46:03,710 INFO L226 Difference]: Without dead ends: 116 [2023-11-06 22:46:03,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:46:03,712 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 51 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:03,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 205 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:46:03,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-06 22:46:03,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 109. [2023-11-06 22:46:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 70 states have internal predecessors, (87), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:46:03,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 155 transitions. [2023-11-06 22:46:03,761 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 155 transitions. Word has length 113 [2023-11-06 22:46:03,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:03,762 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 155 transitions. [2023-11-06 22:46:03,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:46:03,763 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 155 transitions. [2023-11-06 22:46:03,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 22:46:03,765 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:03,766 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:03,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:46:03,766 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:03,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:03,767 INFO L85 PathProgramCache]: Analyzing trace with hash -433483519, now seen corresponding path program 1 times [2023-11-06 22:46:03,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:03,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291872962] [2023-11-06 22:46:03,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:03,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:46:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:46:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:46:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:46:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:46:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:46:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:46:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:46:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:46:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:46:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:46:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:46:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:46:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:46:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:46:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-06 22:46:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-06 22:46:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:04,121 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-06 22:46:04,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:46:04,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291872962] [2023-11-06 22:46:04,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291872962] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:04,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:04,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:46:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082962261] [2023-11-06 22:46:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:04,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:46:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:46:04,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:46:04,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:46:04,138 INFO L87 Difference]: Start difference. First operand 109 states and 155 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:46:04,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:04,433 INFO L93 Difference]: Finished difference Result 200 states and 275 transitions. [2023-11-06 22:46:04,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:46:04,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2023-11-06 22:46:04,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:04,436 INFO L225 Difference]: With dead ends: 200 [2023-11-06 22:46:04,436 INFO L226 Difference]: Without dead ends: 138 [2023-11-06 22:46:04,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:46:04,438 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 102 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:04,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 325 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:46:04,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-06 22:46:04,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 110. [2023-11-06 22:46:04,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 71 states have (on average 1.2394366197183098) internal successors, (88), 71 states have internal predecessors, (88), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:46:04,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2023-11-06 22:46:04,504 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 113 [2023-11-06 22:46:04,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:04,506 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2023-11-06 22:46:04,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:46:04,507 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2023-11-06 22:46:04,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 22:46:04,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:04,511 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:04,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:46:04,515 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:04,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:04,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1076927685, now seen corresponding path program 1 times [2023-11-06 22:46:04,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:46:04,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61218990] [2023-11-06 22:46:04,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:04,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:46:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:04,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:46:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:46:04,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:46:04,817 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:46:04,818 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:46:04,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:46:04,824 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-06 22:46:04,829 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:46:04,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:46:04 BoogieIcfgContainer [2023-11-06 22:46:04,934 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:46:04,935 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:46:04,935 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:46:04,935 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:46:04,936 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:45:57" (3/4) ... [2023-11-06 22:46:04,938 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:46:04,939 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:46:04,940 INFO L158 Benchmark]: Toolchain (without parser) took 8551.56ms. Allocated memory was 132.1MB in the beginning and 205.5MB in the end (delta: 73.4MB). Free memory was 93.6MB in the beginning and 153.4MB in the end (delta: -59.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2023-11-06 22:46:04,940 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 132.1MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:46:04,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.37ms. Allocated memory is still 132.1MB. Free memory was 93.6MB in the beginning and 80.9MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:46:04,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.49ms. Allocated memory is still 132.1MB. Free memory was 80.9MB in the beginning and 78.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:46:04,941 INFO L158 Benchmark]: Boogie Preprocessor took 33.16ms. Allocated memory is still 132.1MB. Free memory was 78.6MB in the beginning and 77.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:46:04,942 INFO L158 Benchmark]: RCFGBuilder took 633.70ms. Allocated memory is still 132.1MB. Free memory was 77.2MB in the beginning and 60.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-06 22:46:04,942 INFO L158 Benchmark]: TraceAbstraction took 7404.09ms. Allocated memory was 132.1MB in the beginning and 205.5MB in the end (delta: 73.4MB). Free memory was 60.0MB in the beginning and 154.5MB in the end (delta: -94.4MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2023-11-06 22:46:04,942 INFO L158 Benchmark]: Witness Printer took 4.24ms. Allocated memory is still 205.5MB. Free memory was 154.5MB in the beginning and 153.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:46:04,945 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 132.1MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.37ms. Allocated memory is still 132.1MB. Free memory was 93.6MB in the beginning and 80.9MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.49ms. Allocated memory is still 132.1MB. Free memory was 80.9MB in the beginning and 78.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.16ms. Allocated memory is still 132.1MB. Free memory was 78.6MB in the beginning and 77.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 633.70ms. Allocated memory is still 132.1MB. Free memory was 77.2MB in the beginning and 60.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7404.09ms. Allocated memory was 132.1MB in the beginning and 205.5MB in the end (delta: 73.4MB). Free memory was 60.0MB in the beginning and 154.5MB in the end (delta: -94.4MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. * Witness Printer took 4.24ms. Allocated memory is still 205.5MB. Free memory was 154.5MB in the beginning and 153.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of bitwiseOr at line 103. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -8; [L23] unsigned char var_1_5 = 0; [L24] unsigned char var_1_6 = 1; [L25] signed char var_1_7 = -1; [L26] signed char var_1_8 = -50; [L27] signed char var_1_9 = 100; [L28] unsigned long int var_1_10 = 25; [L29] unsigned long int var_1_11 = 2568920345; [L30] unsigned long int var_1_12 = 1191097264; [L31] unsigned long int var_1_13 = 1801344522; [L32] signed long int var_1_14 = 64; [L33] signed short int var_1_15 = -16; [L34] float var_1_16 = 1000000.5; [L35] float var_1_17 = 4.5; [L36] unsigned char var_1_18 = 0; [L37] unsigned char var_1_19 = 128; [L38] unsigned long int last_1_var_1_10 = 25; [L39] signed short int last_1_var_1_15 = -16; [L40] unsigned char last_1_var_1_18 = 0; VAL [isInitial=0, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] CALL updateLastVariables() [L98] last_1_var_1_10 = var_1_10 [L99] last_1_var_1_15 = var_1_15 [L100] last_1_var_1_18 = var_1_18 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L110] RET updateLastVariables() [L111] CALL updateVariables() [L70] var_1_5 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L72] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L72] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L73] var_1_6 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L75] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L75] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L76] var_1_7 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L77] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L78] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L78] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=100] [L79] var_1_9 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L80] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L81] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L81] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2568920345, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L82] var_1_11 = __VERIFIER_nondet_ulong() [L83] CALL assume_abort_if_not(var_1_11 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L83] RET assume_abort_if_not(var_1_11 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L84] CALL assume_abort_if_not(var_1_11 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L84] RET assume_abort_if_not(var_1_11 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=1191097264, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L85] var_1_12 = __VERIFIER_nondet_ulong() [L86] CALL assume_abort_if_not(var_1_12 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L86] RET assume_abort_if_not(var_1_12 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L87] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L87] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=1801344522, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L88] var_1_13 = __VERIFIER_nondet_ulong() [L89] CALL assume_abort_if_not(var_1_13 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L89] RET assume_abort_if_not(var_1_13 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L90] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L90] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=9/2, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L91] var_1_17 = __VERIFIER_nondet_float() [L92] CALL assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L92] RET assume_abort_if_not((var_1_17 >= -922337.2036854765600e+13F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 9223372.036854765600e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=128, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L93] var_1_19 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L94] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L95] CALL assume_abort_if_not(var_1_19 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L95] RET assume_abort_if_not(var_1_19 <= 254) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L111] RET updateVariables() [L112] CALL step() [L44] EXPR last_1_var_1_15 | last_1_var_1_10 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15 | last_1_var_1_10=4294967280, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-8, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L44] COND FALSE !(((last_1_var_1_15 | last_1_var_1_10) > last_1_var_1_18) && var_1_5) [L51] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L53] COND FALSE !(\read(var_1_5)) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=64, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L56] COND TRUE var_1_12 <= var_1_8 [L57] var_1_14 = ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=-16, var_1_16=2000001/2, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L59] var_1_15 = 2 [L60] var_1_16 = var_1_17 [L61] var_1_18 = var_1_19 [L62] unsigned char stepLocal_0 = var_1_8 < var_1_1; VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, stepLocal_0=1, var_1_10=25, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=2, var_1_16=4294967285, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L63] COND TRUE stepLocal_0 && (((((var_1_9) > (var_1_8)) ? (var_1_9) : (var_1_8))) == var_1_7) [L64] var_1_10 = (var_1_11 - (((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))) - 1u)) VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, stepLocal_0=1, var_1_10=1, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=2, var_1_16=4294967285, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L112] RET step() [L113] CALL, EXPR property() [L103] EXPR last_1_var_1_15 | last_1_var_1_10 VAL [isInitial=1, last_1_var_1_10=25, last_1_var_1_15 | last_1_var_1_10=4294967280, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=1, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=2, var_1_16=4294967285, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L103-L104] return (((((((((last_1_var_1_15 | last_1_var_1_10) > last_1_var_1_18) && var_1_5) ? ((var_1_5 && var_1_6) ? (var_1_1 == ((signed char) var_1_7)) : (var_1_1 == ((signed char) var_1_7))) : (var_1_1 == ((signed char) var_1_7))) && (var_1_5 ? (var_1_8 == ((signed char) ((((var_1_7) > (var_1_9)) ? (var_1_7) : (var_1_9))))) : 1)) && (((var_1_8 < var_1_1) && (((((var_1_9) > (var_1_8)) ? (var_1_9) : (var_1_8))) == var_1_7)) ? (var_1_10 == ((unsigned long int) (var_1_11 - (((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))) - 1u)))) : (var_1_10 == ((unsigned long int) (var_1_11 - var_1_13))))) && ((var_1_12 <= var_1_8) ? (var_1_14 == ((signed long int) ((((var_1_8) < 0 ) ? -(var_1_8) : (var_1_8))))) : 1)) && (var_1_15 == ((signed short int) 2))) && (var_1_16 == ((float) var_1_17))) && (var_1_18 == ((unsigned char) var_1_19)) ; [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=1, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=2, var_1_16=4294967285, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=25, last_1_var_1_15=-16, last_1_var_1_18=0, var_1_10=1, var_1_11=2147483647, var_1_12=2147483647, var_1_13=2147483646, var_1_14=50, var_1_15=2, var_1_16=4294967285, var_1_17=4294967285, var_1_18=0, var_1_19=0, var_1_1=-1, var_1_5=0, var_1_6=1, var_1_7=-1, var_1_8=-50, var_1_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 6, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 351 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 351 mSDsluCounter, 947 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 589 mSDsCounter, 198 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 249 IncrementalHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 198 mSolverCounterUnsat, 358 mSDtfsCounter, 249 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 64 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 672 NumberOfCodeBlocks, 672 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 554 ConstructedInterpolants, 0 QuantifiedInterpolants, 2130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2720/2720 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 [2023-11-06 22:46:04,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c418b0c8344417842d256c30105b463d7c4d2db0994323aaa603b3ca1dc8de4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:46:07,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:46:07,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:46:07,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:46:07,711 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:46:07,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:46:07,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:46:07,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:46:07,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:46:07,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:46:07,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:46:07,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:46:07,741 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:46:07,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:46:07,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:46:07,743 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:46:07,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:46:07,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:46:07,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:46:07,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:46:07,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:46:07,747 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:46:07,748 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:46:07,748 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:46:07,749 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:46:07,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:46:07,750 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:46:07,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:46:07,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:46:07,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:46:07,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:46:07,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:46:07,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:46:07,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:46:07,753 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:46:07,754 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:46:07,754 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:46:07,754 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:46:07,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:46:07,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:46:07,755 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:46:07,755 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:46:07,756 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c418b0c8344417842d256c30105b463d7c4d2db0994323aaa603b3ca1dc8de4 [2023-11-06 22:46:08,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:46:08,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:46:08,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:46:08,153 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:46:08,154 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:46:08,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-06 22:46:11,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:46:11,574 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:46:11,575 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-06 22:46:11,584 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/data/6547d2c02/7bf95fac340a4b72a55f04a7758d8046/FLAGae096c825 [2023-11-06 22:46:11,598 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/data/6547d2c02/7bf95fac340a4b72a55f04a7758d8046 [2023-11-06 22:46:11,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:46:11,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:46:11,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:46:11,604 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:46:11,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:46:11,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:11,610 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@604267f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11, skipping insertion in model container [2023-11-06 22:46:11,610 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:11,644 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:46:11,794 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_573526fa-919d-4a88-988d-9a735f335b41/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i[917,930] [2023-11-06 22:46:11,837 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:46:11,858 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:46:11,870 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_573526fa-919d-4a88-988d-9a735f335b41/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-88.i[917,930] [2023-11-06 22:46:11,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:46:11,915 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:46:11,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11 WrapperNode [2023-11-06 22:46:11,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:46:11,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:46:11,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:46:11,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:46:11,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:11,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:11,970 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-06 22:46:11,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:46:11,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:46:11,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:46:11,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:46:11,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:11,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:11,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:11,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:11,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:12,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:12,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:12,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:12,011 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:46:12,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:46:12,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:46:12,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:46:12,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (1/1) ... [2023-11-06 22:46:12,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:46:12,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:46:12,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:46:12,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:46:12,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:46:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:46:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:46:12,098 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:46:12,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:46:12,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:46:12,263 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:46:12,265 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:46:12,651 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:46:12,658 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:46:12,658 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:46:12,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:46:12 BoogieIcfgContainer [2023-11-06 22:46:12,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:46:12,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:46:12,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:46:12,667 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:46:12,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:46:11" (1/3) ... [2023-11-06 22:46:12,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a105699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:46:12, skipping insertion in model container [2023-11-06 22:46:12,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:46:11" (2/3) ... [2023-11-06 22:46:12,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a105699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:46:12, skipping insertion in model container [2023-11-06 22:46:12,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:46:12" (3/3) ... [2023-11-06 22:46:12,671 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-88.i [2023-11-06 22:46:12,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:46:12,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:46:12,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:46:12,752 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@2ea0547b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:46:12,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:46:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:46:12,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-06 22:46:12,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:12,772 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:12,772 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:12,778 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:12,779 INFO L85 PathProgramCache]: Analyzing trace with hash -151393228, now seen corresponding path program 1 times [2023-11-06 22:46:12,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:46:12,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419780541] [2023-11-06 22:46:12,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:12,797 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 [2023-11-06 22:46:12,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:46:12,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:46:12,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:46:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:12,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:46:13,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-06 22:46:13,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:46:13,065 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:46:13,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419780541] [2023-11-06 22:46:13,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419780541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:13,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:13,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:46:13,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162395511] [2023-11-06 22:46:13,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:13,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:46:13,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:46:13,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:46:13,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:46:13,110 INFO L87 Difference]: Start difference. First operand has 51 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-06 22:46:13,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:13,143 INFO L93 Difference]: Finished difference Result 95 states and 161 transitions. [2023-11-06 22:46:13,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:46:13,146 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 108 [2023-11-06 22:46:13,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:13,154 INFO L225 Difference]: With dead ends: 95 [2023-11-06 22:46:13,155 INFO L226 Difference]: Without dead ends: 47 [2023-11-06 22:46:13,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:46:13,163 INFO L413 NwaCegarLoop]: 68 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, 68 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 [2023-11-06 22:46:13,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:46:13,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-06 22:46:13,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-06 22:46:13,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:46:13,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2023-11-06 22:46:13,214 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 108 [2023-11-06 22:46:13,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:13,215 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2023-11-06 22:46:13,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-06 22:46:13,216 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2023-11-06 22:46:13,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-06 22:46:13,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:13,220 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:13,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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)] Ended with exit code 0 [2023-11-06 22:46:13,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:46:13,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:13,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:13,433 INFO L85 PathProgramCache]: Analyzing trace with hash 222157298, now seen corresponding path program 1 times [2023-11-06 22:46:13,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:46:13,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833779053] [2023-11-06 22:46:13,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:13,435 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 [2023-11-06 22:46:13,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:46:13,436 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:46:13,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:46:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:13,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:46:13,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-06 22:46:14,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:46:14,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:46:14,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833779053] [2023-11-06 22:46:14,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833779053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:46:14,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:46:14,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:46:14,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659238278] [2023-11-06 22:46:14,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:46:14,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:46:14,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:46:14,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:46:14,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:46:14,198 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:46:14,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:14,411 INFO L93 Difference]: Finished difference Result 158 states and 226 transitions. [2023-11-06 22:46:14,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:46:14,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 108 [2023-11-06 22:46:14,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:14,417 INFO L225 Difference]: With dead ends: 158 [2023-11-06 22:46:14,417 INFO L226 Difference]: Without dead ends: 114 [2023-11-06 22:46:14,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:46:14,420 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 84 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:14,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 254 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:46:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-06 22:46:14,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 81. [2023-11-06 22:46:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 44 states have internal predecessors, (51), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:46:14,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 119 transitions. [2023-11-06 22:46:14,455 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 119 transitions. Word has length 108 [2023-11-06 22:46:14,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:14,456 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 119 transitions. [2023-11-06 22:46:14,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-06 22:46:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 119 transitions. [2023-11-06 22:46:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-06 22:46:14,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:14,472 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:14,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:46:14,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:46:14,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:14,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:14,687 INFO L85 PathProgramCache]: Analyzing trace with hash -587189328, now seen corresponding path program 1 times [2023-11-06 22:46:14,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:46:14,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238803398] [2023-11-06 22:46:14,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:14,689 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 [2023-11-06 22:46:14,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:46:14,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:46:14,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:46:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:14,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:46:14,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:46:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 258 proven. 15 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-06 22:46:15,319 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:46:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-11-06 22:46:15,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:46:15,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238803398] [2023-11-06 22:46:15,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238803398] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:46:15,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:46:15,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-06 22:46:15,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851429357] [2023-11-06 22:46:15,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:46:15,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:46:15,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:46:15,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:46:15,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:46:15,648 INFO L87 Difference]: Start difference. First operand 81 states and 119 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-11-06 22:46:16,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:46:16,562 INFO L93 Difference]: Finished difference Result 242 states and 342 transitions. [2023-11-06 22:46:16,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:46:16,563 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 108 [2023-11-06 22:46:16,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:46:16,567 INFO L225 Difference]: With dead ends: 242 [2023-11-06 22:46:16,567 INFO L226 Difference]: Without dead ends: 198 [2023-11-06 22:46:16,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:46:16,572 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 162 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:46:16,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 201 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:46:16,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-06 22:46:16,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 157. [2023-11-06 22:46:16,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 89 states have (on average 1.1573033707865168) internal successors, (103), 90 states have internal predecessors, (103), 61 states have call successors, (61), 6 states have call predecessors, (61), 6 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-06 22:46:16,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 225 transitions. [2023-11-06 22:46:16,654 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 225 transitions. Word has length 108 [2023-11-06 22:46:16,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:46:16,655 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 225 transitions. [2023-11-06 22:46:16,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (34), 3 states have call predecessors, (34), 5 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-11-06 22:46:16,655 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 225 transitions. [2023-11-06 22:46:16,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-06 22:46:16,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:46:16,658 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:46:16,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:46:16,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:46:16,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:46:16,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:46:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1932770606, now seen corresponding path program 1 times [2023-11-06 22:46:16,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:46:16,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547470761] [2023-11-06 22:46:16,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:46:16,874 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 [2023-11-06 22:46:16,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:46:16,875 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:46:16,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_573526fa-919d-4a88-988d-9a735f335b41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:46:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:46:17,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-06 22:46:17,030 INFO L285 TraceCheckSpWp]: Computing forward predicates...