./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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_1c4ac42f-f938-4a34-9401-be9285caf37d/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 97ab114faeeb647754215ee4eabe50225e9e4c7fb0c1ec399b2dc963df906731 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:06:55,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:06:55,822 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:06:55,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:06:55,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:06:55,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:06:55,858 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:06:55,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:06:55,859 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:06:55,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:06:55,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:06:55,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:06:55,862 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:06:55,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:06:55,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:06:55,864 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:06:55,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:06:55,865 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:06:55,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:06:55,866 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:06:55,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:06:55,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:06:55,868 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:06:55,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:06:55,870 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:06:55,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:06:55,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:06:55,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:06:55,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:06:55,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:06:55,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:06:55,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:06:55,874 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:06:55,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:06:55,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:06:55,876 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:06:55,876 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:06:55,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:06:55,877 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:06:55,877 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_1c4ac42f-f938-4a34-9401-be9285caf37d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97ab114faeeb647754215ee4eabe50225e9e4c7fb0c1ec399b2dc963df906731 [2023-11-06 22:06:56,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:06:56,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:06:56,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:06:56,194 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:06:56,194 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:06:56,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-06 22:06:59,460 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:06:59,688 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:06:59,689 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-06 22:06:59,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/data/264569850/189c44647c1b4768be178a8c9ebcfad6/FLAG00fb945e0 [2023-11-06 22:06:59,715 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/data/264569850/189c44647c1b4768be178a8c9ebcfad6 [2023-11-06 22:06:59,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:06:59,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:06:59,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:06:59,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:06:59,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:06:59,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:06:59" (1/1) ... [2023-11-06 22:06:59,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a38c6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:06:59, skipping insertion in model container [2023-11-06 22:06:59,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:06:59" (1/1) ... [2023-11-06 22:06:59,781 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:06:59,945 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_1c4ac42f-f938-4a34-9401-be9285caf37d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i[915,928] [2023-11-06 22:06:59,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:07:00,007 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:07:00,021 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_1c4ac42f-f938-4a34-9401-be9285caf37d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i[915,928] [2023-11-06 22:07:00,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:07:00,065 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:07:00,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00 WrapperNode [2023-11-06 22:07:00,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:07:00,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:07:00,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:07:00,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:07:00,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,134 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-06 22:07:00,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:07:00,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:07:00,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:07:00,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:07:00,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,167 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,173 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:07:00,174 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:07:00,174 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:07:00,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:07:00,175 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (1/1) ... [2023-11-06 22:07:00,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:07:00,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:07:00,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:07:00,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:07:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:07:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:07:00,285 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:07:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:07:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:07:00,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:07:00,392 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:07:00,395 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:07:00,809 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:07:00,816 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:07:00,816 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:07:00,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:00 BoogieIcfgContainer [2023-11-06 22:07:00,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:07:00,822 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:07:00,822 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:07:00,826 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:07:00,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:06:59" (1/3) ... [2023-11-06 22:07:00,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2ca29d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:07:00, skipping insertion in model container [2023-11-06 22:07:00,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:00" (2/3) ... [2023-11-06 22:07:00,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2ca29d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:07:00, skipping insertion in model container [2023-11-06 22:07:00,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:00" (3/3) ... [2023-11-06 22:07:00,829 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-06 22:07:00,849 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:07:00,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:07:00,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:07:00,907 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;@7710f282, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:07:00,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:07:00,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:07:00,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:07:00,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:00,927 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:00,928 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:00,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:00,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1290669553, now seen corresponding path program 1 times [2023-11-06 22:07:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:00,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013779840] [2023-11-06 22:07:00,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:00,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:07:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:07:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:07:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:07:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:07:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:07:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:07:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:07:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:07:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:07:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-06 22:07:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 22:07:01,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:01,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013779840] [2023-11-06 22:07:01,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013779840] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:01,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:01,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:07:01,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078423765] [2023-11-06 22:07:01,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:01,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:07:01,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:01,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:07:01,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:07:01,481 INFO L87 Difference]: Start difference. First operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:07:01,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:01,507 INFO L93 Difference]: Finished difference Result 81 states and 129 transitions. [2023-11-06 22:07:01,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:07:01,510 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2023-11-06 22:07:01,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:01,518 INFO L225 Difference]: With dead ends: 81 [2023-11-06 22:07:01,518 INFO L226 Difference]: Without dead ends: 40 [2023-11-06 22:07:01,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 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 22:07:01,525 INFO L413 NwaCegarLoop]: 55 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, 55 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 22:07:01,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:07:01,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-06 22:07:01,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-06 22:07:01,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:07:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2023-11-06 22:07:01,569 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 76 [2023-11-06 22:07:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:01,570 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2023-11-06 22:07:01,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:07:01,570 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-11-06 22:07:01,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:07:01,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:01,575 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:01,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:07:01,576 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:01,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:01,576 INFO L85 PathProgramCache]: Analyzing trace with hash -311629705, now seen corresponding path program 1 times [2023-11-06 22:07:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:01,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016164301] [2023-11-06 22:07:01,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:01,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:07:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:07:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:07:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:07:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:07:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:07:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:07:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:07:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:07:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:07:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-06 22:07:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:01,769 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 22:07:01,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:01,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016164301] [2023-11-06 22:07:01,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016164301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:01,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:01,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:07:01,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982356584] [2023-11-06 22:07:01,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:01,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:07:01,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:01,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:07:01,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:07:01,775 INFO L87 Difference]: Start difference. First operand 40 states and 55 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:07:01,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:01,802 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2023-11-06 22:07:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:07:01,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2023-11-06 22:07:01,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:01,805 INFO L225 Difference]: With dead ends: 77 [2023-11-06 22:07:01,805 INFO L226 Difference]: Without dead ends: 40 [2023-11-06 22:07:01,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:07:01,808 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:01,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 94 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:07:01,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-06 22:07:01,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-06 22:07:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:07:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2023-11-06 22:07:01,830 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 76 [2023-11-06 22:07:01,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:01,834 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2023-11-06 22:07:01,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:07:01,835 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-06 22:07:01,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:07:01,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:01,843 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:01,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:07:01,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:01,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:01,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1463377657, now seen corresponding path program 1 times [2023-11-06 22:07:01,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:01,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895572892] [2023-11-06 22:07:01,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:01,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:07:02,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:07:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:07:02,202 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:07:02,203 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:07:02,204 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:07:02,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:07:02,210 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 22:07:02,214 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:07:02,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:07:02 BoogieIcfgContainer [2023-11-06 22:07:02,296 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:07:02,297 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:07:02,297 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:07:02,297 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:07:02,298 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:00" (3/4) ... [2023-11-06 22:07:02,300 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:07:02,305 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:07:02,307 INFO L158 Benchmark]: Toolchain (without parser) took 2582.59ms. Allocated memory is still 146.8MB. Free memory was 105.3MB in the beginning and 95.5MB in the end (delta: 9.8MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-11-06 22:07:02,308 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 104.9MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:07:02,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.59ms. Allocated memory is still 146.8MB. Free memory was 105.0MB in the beginning and 92.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:07:02,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.80ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 89.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:07:02,310 INFO L158 Benchmark]: Boogie Preprocessor took 38.16ms. Allocated memory is still 146.8MB. Free memory was 89.0MB in the beginning and 87.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:07:02,311 INFO L158 Benchmark]: RCFGBuilder took 644.86ms. Allocated memory is still 146.8MB. Free memory was 87.3MB in the beginning and 115.3MB in the end (delta: -27.9MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2023-11-06 22:07:02,312 INFO L158 Benchmark]: TraceAbstraction took 1474.50ms. Allocated memory is still 146.8MB. Free memory was 114.6MB in the beginning and 95.5MB in the end (delta: 19.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-06 22:07:02,312 INFO L158 Benchmark]: Witness Printer took 8.96ms. Allocated memory is still 146.8MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:07:02,315 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 104.9MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.59ms. Allocated memory is still 146.8MB. Free memory was 105.0MB in the beginning and 92.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.80ms. Allocated memory is still 146.8MB. Free memory was 92.4MB in the beginning and 89.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.16ms. Allocated memory is still 146.8MB. Free memory was 89.0MB in the beginning and 87.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 644.86ms. Allocated memory is still 146.8MB. Free memory was 87.3MB in the beginning and 115.3MB in the end (delta: -27.9MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1474.50ms. Allocated memory is still 146.8MB. Free memory was 114.6MB in the beginning and 95.5MB in the end (delta: 19.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Witness Printer took 8.96ms. Allocated memory is still 146.8MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 84. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 128; [L23] unsigned char var_1_4 = 25; [L24] unsigned char var_1_5 = 64; [L25] unsigned char var_1_6 = 8; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 10; [L28] float var_1_9 = 9.6; [L29] float var_1_10 = 99.08; [L30] float var_1_11 = 63.4; [L31] float var_1_12 = 32.125; [L32] signed long int var_1_13 = -8; [L33] signed short int var_1_14 = -2; VAL [isInitial=0, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=25, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L88] isInitial = 1 [L89] FCALL initially() [L90] COND TRUE 1 [L91] FCALL updateLastVariables() [L92] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L63] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L64] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L64] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L65] var_1_5 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L66] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L67] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L67] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L68] var_1_6 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L69] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L70] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L70] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L71] var_1_7 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L72] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L73] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L73] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L74] var_1_10 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=644, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=644, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L75] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=644, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L76] var_1_11 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L77] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=644, var_1_11=645, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L78] var_1_12 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L79] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L92] RET updateVariables() [L93] CALL step() [L37] unsigned char stepLocal_1 = var_1_4; VAL [isInitial=1, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L38] COND TRUE var_1_5 > stepLocal_1 [L39] var_1_8 = (128 - ((((10) > (var_1_5)) ? (10) : (var_1_5)))) VAL [isInitial=1, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L41] var_1_13 = var_1_7 [L42] var_1_14 = var_1_7 [L43] signed short int stepLocal_0 = var_1_14; VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L44] COND FALSE !(var_1_14 != stepLocal_0) [L47] var_1_1 = ((((((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) < (var_1_7)) ? (((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) : (var_1_7))) VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L49] signed long int stepLocal_3 = var_1_13; [L50] unsigned char stepLocal_2 = var_1_1; VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, stepLocal_2=126, stepLocal_3=127, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L51] COND FALSE !((var_1_10 * var_1_11) > 16.75f) VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, stepLocal_2=126, stepLocal_3=127, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L93] RET step() [L94] CALL, EXPR property() [L84-L85] return (((((var_1_14 != var_1_14) ? (var_1_1 == ((unsigned char) (var_1_4 + ((((((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) > (var_1_7)) ? (((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) : (var_1_7)))))) : (var_1_1 == ((unsigned char) ((((((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) < (var_1_7)) ? (((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) : (var_1_7)))))) && ((var_1_5 > var_1_4) ? (var_1_8 == ((unsigned char) (128 - ((((10) > (var_1_5)) ? (10) : (var_1_5)))))) : 1)) && (((var_1_10 * var_1_11) > 16.75f) ? ((var_1_7 <= var_1_1) ? ((-8 > var_1_13) ? (var_1_9 == ((float) var_1_12)) : 1) : (var_1_9 == ((float) var_1_12))) : 1)) && (var_1_13 == ((signed long int) var_1_7))) && (var_1_14 == ((signed short int) var_1_7)) ; VAL [\result=0, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 107 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 440/440 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 22:07:02,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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_1c4ac42f-f938-4a34-9401-be9285caf37d/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 97ab114faeeb647754215ee4eabe50225e9e4c7fb0c1ec399b2dc963df906731 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:07:05,065 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:07:05,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:07:05,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:07:05,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:07:05,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:07:05,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:07:05,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:07:05,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:07:05,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:07:05,269 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:07:05,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:07:05,270 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:07:05,272 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:07:05,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:07:05,273 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:07:05,274 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:07:05,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:07:05,275 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:07:05,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:07:05,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:07:05,277 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:07:05,278 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:07:05,278 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:07:05,278 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:07:05,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:07:05,279 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:07:05,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:07:05,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:07:05,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:07:05,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:07:05,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:07:05,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:07:05,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:07:05,284 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:07:05,284 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:07:05,284 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:07:05,284 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:07:05,285 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:07:05,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:07:05,286 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:07:05,287 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:07:05,287 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_1c4ac42f-f938-4a34-9401-be9285caf37d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97ab114faeeb647754215ee4eabe50225e9e4c7fb0c1ec399b2dc963df906731 [2023-11-06 22:07:05,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:07:05,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:07:05,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:07:05,762 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:07:05,763 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:07:05,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-06 22:07:09,020 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:07:09,379 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:07:09,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-06 22:07:09,389 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/data/37b35cd04/7d0e6e6715cf4141a5e6e5dca5145717/FLAG585017120 [2023-11-06 22:07:09,404 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/data/37b35cd04/7d0e6e6715cf4141a5e6e5dca5145717 [2023-11-06 22:07:09,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:07:09,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:07:09,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:07:09,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:07:09,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:07:09,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:09,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4f5e3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09, skipping insertion in model container [2023-11-06 22:07:09,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:09,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:07:09,663 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_1c4ac42f-f938-4a34-9401-be9285caf37d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i[915,928] [2023-11-06 22:07:09,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:07:09,785 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:07:09,803 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_1c4ac42f-f938-4a34-9401-be9285caf37d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i[915,928] [2023-11-06 22:07:09,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:07:09,869 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:07:09,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09 WrapperNode [2023-11-06 22:07:09,870 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:07:09,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:07:09,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:07:09,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:07:09,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:09,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:09,957 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-06 22:07:09,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:07:09,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:07:09,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:07:09,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:07:09,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:09,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:09,997 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:09,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:10,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:10,025 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:10,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:10,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:10,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:07:10,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:07:10,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:07:10,061 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:07:10,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (1/1) ... [2023-11-06 22:07:10,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:07:10,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:07:10,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:07:10,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:07:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:07:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:07:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:07:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:07:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:07:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:07:10,253 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:07:10,255 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:07:11,519 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:07:11,539 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:07:11,539 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:07:11,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:11 BoogieIcfgContainer [2023-11-06 22:07:11,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:07:11,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:07:11,545 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:07:11,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:07:11,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:07:09" (1/3) ... [2023-11-06 22:07:11,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78314299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:07:11, skipping insertion in model container [2023-11-06 22:07:11,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:07:09" (2/3) ... [2023-11-06 22:07:11,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78314299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:07:11, skipping insertion in model container [2023-11-06 22:07:11,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:07:11" (3/3) ... [2023-11-06 22:07:11,556 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-06 22:07:11,576 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:07:11,577 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:07:11,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:07:11,656 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;@14f87a39, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:07:11,656 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:07:11,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:07:11,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:07:11,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:11,677 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:11,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:11,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:11,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1290669553, now seen corresponding path program 1 times [2023-11-06 22:07:11,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:07:11,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595169988] [2023-11-06 22:07:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:11,711 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 22:07:11,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:07:11,716 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:07:11,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:07:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:12,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:07:12,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:07:12,261 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-06 22:07:12,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:07:12,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:07:12,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595169988] [2023-11-06 22:07:12,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [595169988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:12,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:12,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:07:12,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756197975] [2023-11-06 22:07:12,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:12,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:07:12,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:07:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:07:12,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:07:12,327 INFO L87 Difference]: Start difference. First operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:07:12,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:12,368 INFO L93 Difference]: Finished difference Result 81 states and 129 transitions. [2023-11-06 22:07:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:07:12,371 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2023-11-06 22:07:12,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:12,380 INFO L225 Difference]: With dead ends: 81 [2023-11-06 22:07:12,381 INFO L226 Difference]: Without dead ends: 40 [2023-11-06 22:07:12,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 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 22:07:12,391 INFO L413 NwaCegarLoop]: 55 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, 55 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 22:07:12,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:07:12,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-06 22:07:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-06 22:07:12,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:07:12,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2023-11-06 22:07:12,449 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 76 [2023-11-06 22:07:12,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:12,449 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2023-11-06 22:07:12,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:07:12,451 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-11-06 22:07:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:07:12,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:12,458 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:12,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:07:12,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:07:12,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:12,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:12,677 INFO L85 PathProgramCache]: Analyzing trace with hash -311629705, now seen corresponding path program 1 times [2023-11-06 22:07:12,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:07:12,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274744250] [2023-11-06 22:07:12,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:12,678 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 22:07:12,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:07:12,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:07:12,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:07:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:13,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:07:13,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:07:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 22:07:13,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:07:13,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:07:13,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274744250] [2023-11-06 22:07:13,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274744250] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:13,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:13,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:07:13,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349022904] [2023-11-06 22:07:13,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:13,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:07:13,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:07:13,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:07:13,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:07:13,082 INFO L87 Difference]: Start difference. First operand 40 states and 55 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:07:13,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:07:13,280 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2023-11-06 22:07:13,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:07:13,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2023-11-06 22:07:13,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:07:13,291 INFO L225 Difference]: With dead ends: 77 [2023-11-06 22:07:13,291 INFO L226 Difference]: Without dead ends: 40 [2023-11-06 22:07:13,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:07:13,315 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:07:13,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 94 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:07:13,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-06 22:07:13,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-06 22:07:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:07:13,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2023-11-06 22:07:13,339 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 76 [2023-11-06 22:07:13,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:07:13,342 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2023-11-06 22:07:13,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:07:13,342 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-06 22:07:13,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:07:13,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:07:13,346 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:07:13,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:07:13,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:07:13,564 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:07:13,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:13,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1463377657, now seen corresponding path program 1 times [2023-11-06 22:07:13,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:07:13,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987860515] [2023-11-06 22:07:13,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:13,566 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 22:07:13,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:07:13,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:07:13,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:07:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:13,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:07:13,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:08:02,269 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-06 22:08:02,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:08:02,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:08:02,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987860515] [2023-11-06 22:08:02,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987860515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:08:02,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:08:02,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:08:02,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970826917] [2023-11-06 22:08:02,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:08:02,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:08:02,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:08:02,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:08:02,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:08:02,274 INFO L87 Difference]: Start difference. First operand 40 states and 54 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:08:07,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:16,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:08:19,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:08:19,133 INFO L93 Difference]: Finished difference Result 103 states and 139 transitions. [2023-11-06 22:08:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:08:19,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2023-11-06 22:08:19,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:08:19,147 INFO L225 Difference]: With dead ends: 103 [2023-11-06 22:08:19,147 INFO L226 Difference]: Without dead ends: 101 [2023-11-06 22:08:19,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:08:19,149 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 88 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:08:19,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 335 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2023-11-06 22:08:19,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-06 22:08:19,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 61. [2023-11-06 22:08:19,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 45 states have (on average 1.2) internal successors, (54), 46 states have internal predecessors, (54), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:08:19,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2023-11-06 22:08:19,180 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 76 [2023-11-06 22:08:19,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:08:19,180 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2023-11-06 22:08:19,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-06 22:08:19,180 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2023-11-06 22:08:19,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:08:19,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:08:19,182 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:08:19,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:08:19,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:08:19,388 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:08:19,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:08:19,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2143436027, now seen corresponding path program 1 times [2023-11-06 22:08:19,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:08:19,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009103719] [2023-11-06 22:08:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:08:19,390 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 22:08:19,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:08:19,398 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:08:19,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4ac42f-f938-4a34-9401-be9285caf37d/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 22:08:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:08:19,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-06 22:08:19,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:08:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 89 proven. 45 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-11-06 22:08:53,533 INFO L327 TraceCheckSpWp]: Computing backward predicates...