./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53ac7479a950235157217cca437cf6f6e0f377d0e27ff61b959bf8258dd5b0ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:53:32,986 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:53:33,106 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:53:33,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:53:33,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:53:33,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:53:33,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:53:33,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:53:33,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:53:33,165 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:53:33,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:53:33,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:53:33,167 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:53:33,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:53:33,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:53:33,170 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:53:33,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:53:33,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:53:33,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:53:33,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:53:33,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:53:33,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:53:33,175 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:53:33,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:53:33,176 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:53:33,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:53:33,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:53:33,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:53:33,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:53:33,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:53:33,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:53:33,181 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:53:33,181 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:53:33,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:53:33,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:53:33,182 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:53:33,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:53:33,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:53:33,182 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:53:33,183 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_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53ac7479a950235157217cca437cf6f6e0f377d0e27ff61b959bf8258dd5b0ad [2023-11-19 07:53:33,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:53:33,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:53:33,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:53:33,518 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:53:33,518 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:53:33,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i [2023-11-19 07:53:36,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:53:36,892 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:53:36,893 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i [2023-11-19 07:53:36,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/data/0b6b21730/9fb419ca34364d36a998da0774c2020f/FLAGe96a68db5 [2023-11-19 07:53:36,919 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/data/0b6b21730/9fb419ca34364d36a998da0774c2020f [2023-11-19 07:53:36,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:53:36,924 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:53:36,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:53:36,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:53:36,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:53:36,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:36" (1/1) ... [2023-11-19 07:53:36,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bcf93a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:36, skipping insertion in model container [2023-11-19 07:53:36,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:36" (1/1) ... [2023-11-19 07:53:36,965 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:53:37,147 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_244fbc10-62b1-4f55-a1b9-71e9f7590678/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i[913,926] [2023-11-19 07:53:37,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:53:37,226 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:53:37,239 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_244fbc10-62b1-4f55-a1b9-71e9f7590678/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i[913,926] [2023-11-19 07:53:37,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:53:37,276 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:53:37,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37 WrapperNode [2023-11-19 07:53:37,283 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:53:37,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:53:37,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:53:37,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:53:37,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,359 INFO L138 Inliner]: procedures = 26, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2023-11-19 07:53:37,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:53:37,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:53:37,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:53:37,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:53:37,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,376 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,388 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,396 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:53:37,397 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:53:37,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:53:37,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:53:37,398 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ... [2023-11-19 07:53:37,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:53:37,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:53:37,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:53:37,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:53:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:53:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:53:37,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:53:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:53:37,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:53:37,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:53:37,534 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:53:37,535 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:53:37,770 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:53:37,778 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:53:37,778 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:53:37,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:37 BoogieIcfgContainer [2023-11-19 07:53:37,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:53:37,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:53:37,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:53:37,789 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:53:37,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:36" (1/3) ... [2023-11-19 07:53:37,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f61f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:37, skipping insertion in model container [2023-11-19 07:53:37,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (2/3) ... [2023-11-19 07:53:37,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70f61f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:37, skipping insertion in model container [2023-11-19 07:53:37,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:37" (3/3) ... [2023-11-19 07:53:37,792 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-21.i [2023-11-19 07:53:37,838 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:53:37,839 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:53:37,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:53:37,923 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@746d5105, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:53:37,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:53:37,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:53:37,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 07:53:37,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:53:37,941 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:37,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:53:37,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:37,949 INFO L85 PathProgramCache]: Analyzing trace with hash -510096507, now seen corresponding path program 1 times [2023-11-19 07:53:37,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:37,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142872303] [2023-11-19 07:53:37,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:37,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:53:38,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:53:38,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142872303] [2023-11-19 07:53:38,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:53:38,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605404794] [2023-11-19 07:53:38,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:38,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:53:38,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:53:38,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:53:38,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:53:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:53:38,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:53:38,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:53:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-19 07:53:38,352 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:53:38,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605404794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:53:38,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:53:38,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:53:38,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359215907] [2023-11-19 07:53:38,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:53:38,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:53:38,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:53:38,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:53:38,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:53:38,423 INFO L87 Difference]: Start difference. First operand has 39 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:53:38,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:53:38,467 INFO L93 Difference]: Finished difference Result 71 states and 111 transitions. [2023-11-19 07:53:38,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:53:38,469 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2023-11-19 07:53:38,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:53:38,478 INFO L225 Difference]: With dead ends: 71 [2023-11-19 07:53:38,478 INFO L226 Difference]: Without dead ends: 35 [2023-11-19 07:53:38,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:53:38,487 INFO L413 NwaCegarLoop]: 48 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, 48 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 [2023-11-19 07:53:38,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:53:38,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-19 07:53:38,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-19 07:53:38,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:53:38,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2023-11-19 07:53:38,545 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 53 [2023-11-19 07:53:38,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:53:38,546 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2023-11-19 07:53:38,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:53:38,547 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2023-11-19 07:53:38,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 07:53:38,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:53:38,551 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:38,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:53:38,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:53:38,768 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:53:38,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:38,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1104841853, now seen corresponding path program 1 times [2023-11-19 07:53:38,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:38,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380284991] [2023-11-19 07:53:38,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:38,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:38,817 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:53:38,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499054516] [2023-11-19 07:53:38,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:38,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:53:38,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:53:38,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:53:38,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:53:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:53:38,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 07:53:38,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:53:39,271 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:53:39,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:53:39,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:53:39,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380284991] [2023-11-19 07:53:39,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:53:39,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499054516] [2023-11-19 07:53:39,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499054516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:53:39,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:53:39,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:53:39,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769421814] [2023-11-19 07:53:39,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:53:39,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:53:39,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:53:39,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:53:39,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:53:39,295 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 07:53:39,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:53:39,330 INFO L93 Difference]: Finished difference Result 98 states and 136 transitions. [2023-11-19 07:53:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:53:39,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 53 [2023-11-19 07:53:39,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:53:39,333 INFO L225 Difference]: With dead ends: 98 [2023-11-19 07:53:39,333 INFO L226 Difference]: Without dead ends: 66 [2023-11-19 07:53:39,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:53:39,336 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 30 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:53:39,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 85 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:53:39,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-19 07:53:39,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2023-11-19 07:53:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 07:53:39,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2023-11-19 07:53:39,351 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 53 [2023-11-19 07:53:39,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:53:39,352 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2023-11-19 07:53:39,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 07:53:39,352 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2023-11-19 07:53:39,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 07:53:39,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:53:39,355 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:39,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:53:39,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:53:39,576 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:53:39,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:39,576 INFO L85 PathProgramCache]: Analyzing trace with hash 706987382, now seen corresponding path program 1 times [2023-11-19 07:53:39,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:39,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188349726] [2023-11-19 07:53:39,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:39,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:39,626 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:53:39,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873198050] [2023-11-19 07:53:39,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:39,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:53:39,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:53:39,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:53:39,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:53:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:53:39,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:53:39,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:53:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:53:52,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:53:52,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:53:52,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188349726] [2023-11-19 07:53:52,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:53:52,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873198050] [2023-11-19 07:53:52,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873198050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:53:52,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:53:52,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:53:52,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732957367] [2023-11-19 07:53:52,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:53:52,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:53:52,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:53:52,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:53:52,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:53:52,876 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 07:53:53,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:53:53,223 INFO L93 Difference]: Finished difference Result 164 states and 232 transitions. [2023-11-19 07:53:53,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:53:53,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 54 [2023-11-19 07:53:53,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:53:53,234 INFO L225 Difference]: With dead ends: 164 [2023-11-19 07:53:53,234 INFO L226 Difference]: Without dead ends: 162 [2023-11-19 07:53:53,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:53:53,239 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 86 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:53:53,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 412 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:53:53,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-19 07:53:53,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 71. [2023-11-19 07:53:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 54 states have (on average 1.2592592592592593) internal successors, (68), 54 states have internal predecessors, (68), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 07:53:53,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 96 transitions. [2023-11-19 07:53:53,284 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 96 transitions. Word has length 54 [2023-11-19 07:53:53,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:53:53,287 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 96 transitions. [2023-11-19 07:53:53,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 07:53:53,287 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 96 transitions. [2023-11-19 07:53:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 07:53:53,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:53:53,292 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:53:53,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:53:53,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:53:53,516 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:53:53,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:53,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1443072449, now seen corresponding path program 1 times [2023-11-19 07:53:53,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:53:53,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885415520] [2023-11-19 07:53:53,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:53,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:53:53,550 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:53:53,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72930714] [2023-11-19 07:53:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:53,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:53:53,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:53:53,567 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:53:53,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:53:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:53:53,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 07:53:53,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:53:58,024 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 07:53:58,024 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:54:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:54:02,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:02,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885415520] [2023-11-19 07:54:02,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:54:02,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72930714] [2023-11-19 07:54:02,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72930714] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:54:02,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:54:02,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 23 [2023-11-19 07:54:02,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493586763] [2023-11-19 07:54:02,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:02,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:54:02,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:02,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:54:02,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:54:02,966 INFO L87 Difference]: Start difference. First operand 71 states and 96 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:54:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:04,816 INFO L93 Difference]: Finished difference Result 368 states and 490 transitions. [2023-11-19 07:54:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-19 07:54:04,816 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 55 [2023-11-19 07:54:04,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:04,819 INFO L225 Difference]: With dead ends: 368 [2023-11-19 07:54:04,819 INFO L226 Difference]: Without dead ends: 300 [2023-11-19 07:54:04,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1070 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=547, Invalid=2993, Unknown=0, NotChecked=0, Total=3540 [2023-11-19 07:54:04,824 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 284 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:04,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 563 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:54:04,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-19 07:54:04,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 136. [2023-11-19 07:54:04,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 103 states have internal predecessors, (133), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 07:54:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 189 transitions. [2023-11-19 07:54:04,853 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 189 transitions. Word has length 55 [2023-11-19 07:54:04,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:04,854 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 189 transitions. [2023-11-19 07:54:04,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:54:04,854 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 189 transitions. [2023-11-19 07:54:04,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 07:54:04,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:04,855 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:04,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:05,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:05,068 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:54:05,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:05,068 INFO L85 PathProgramCache]: Analyzing trace with hash 208059101, now seen corresponding path program 1 times [2023-11-19 07:54:05,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:05,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014079007] [2023-11-19 07:54:05,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:05,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:05,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:05,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200281675] [2023-11-19 07:54:05,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:05,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:05,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:05,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:05,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:54:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:05,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:54:05,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-19 07:54:05,242 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:54:05,332 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-19 07:54:05,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:54:05,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014079007] [2023-11-19 07:54:05,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:54:05,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200281675] [2023-11-19 07:54:05,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200281675] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:54:05,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:54:05,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-19 07:54:05,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686541669] [2023-11-19 07:54:05,333 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:54:05,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:54:05,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:54:05,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:54:05,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:54:05,335 INFO L87 Difference]: Start difference. First operand 136 states and 189 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:54:05,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:05,441 INFO L93 Difference]: Finished difference Result 243 states and 333 transitions. [2023-11-19 07:54:05,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:54:05,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 55 [2023-11-19 07:54:05,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:05,443 INFO L225 Difference]: With dead ends: 243 [2023-11-19 07:54:05,443 INFO L226 Difference]: Without dead ends: 110 [2023-11-19 07:54:05,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:54:05,446 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 76 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:05,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 90 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:54:05,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-19 07:54:05,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2023-11-19 07:54:05,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 80 states have (on average 1.2125) internal successors, (97), 80 states have internal predecessors, (97), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 07:54:05,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 139 transitions. [2023-11-19 07:54:05,462 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 139 transitions. Word has length 55 [2023-11-19 07:54:05,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:05,463 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 139 transitions. [2023-11-19 07:54:05,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 07:54:05,463 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 139 transitions. [2023-11-19 07:54:05,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 07:54:05,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:05,465 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:05,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:05,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:05,686 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:54:05,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1551859698, now seen corresponding path program 1 times [2023-11-19 07:54:05,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:54:05,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183884742] [2023-11-19 07:54:05,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:05,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:54:05,715 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:54:05,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751085790] [2023-11-19 07:54:05,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:05,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:54:05,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:05,724 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:54:05,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:54:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:05,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:54:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:54:05,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:54:05,868 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:54:05,869 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:54:05,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:06,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:54:06,095 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 07:54:06,099 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:54:06,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:54:06 BoogieIcfgContainer [2023-11-19 07:54:06,147 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:54:06,148 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:54:06,148 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:54:06,148 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:54:06,149 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:37" (3/4) ... [2023-11-19 07:54:06,151 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:54:06,152 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:54:06,153 INFO L158 Benchmark]: Toolchain (without parser) took 29229.29ms. Allocated memory was 127.9MB in the beginning and 589.3MB in the end (delta: 461.4MB). Free memory was 83.9MB in the beginning and 335.1MB in the end (delta: -251.1MB). Peak memory consumption was 212.2MB. Max. memory is 16.1GB. [2023-11-19 07:54:06,153 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 127.9MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:06,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.36ms. Allocated memory is still 127.9MB. Free memory was 83.3MB in the beginning and 71.4MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:54:06,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.31ms. Allocated memory is still 127.9MB. Free memory was 71.4MB in the beginning and 68.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:54:06,154 INFO L158 Benchmark]: Boogie Preprocessor took 32.40ms. Allocated memory is still 127.9MB. Free memory was 68.6MB in the beginning and 67.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:06,155 INFO L158 Benchmark]: RCFGBuilder took 385.85ms. Allocated memory is still 127.9MB. Free memory was 67.1MB in the beginning and 53.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 07:54:06,155 INFO L158 Benchmark]: TraceAbstraction took 28362.35ms. Allocated memory was 127.9MB in the beginning and 589.3MB in the end (delta: 461.4MB). Free memory was 53.0MB in the beginning and 335.1MB in the end (delta: -282.1MB). Peak memory consumption was 180.7MB. Max. memory is 16.1GB. [2023-11-19 07:54:06,155 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 589.3MB. Free memory is still 335.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:54:06,157 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 127.9MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.36ms. Allocated memory is still 127.9MB. Free memory was 83.3MB in the beginning and 71.4MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.31ms. Allocated memory is still 127.9MB. Free memory was 71.4MB in the beginning and 68.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.40ms. Allocated memory is still 127.9MB. Free memory was 68.6MB in the beginning and 67.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 385.85ms. Allocated memory is still 127.9MB. Free memory was 67.1MB in the beginning and 53.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 28362.35ms. Allocated memory was 127.9MB in the beginning and 589.3MB in the end (delta: 461.4MB). Free memory was 53.0MB in the beginning and 335.1MB in the end (delta: -282.1MB). Peak memory consumption was 180.7MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 589.3MB. Free memory is still 335.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 73. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 32; [L23] unsigned char var_1_7 = 0; [L24] double var_1_8 = 15.6; [L25] double var_1_9 = 15.4; [L26] double var_1_10 = 32.2; [L27] unsigned char var_1_12 = 1; [L28] signed short int var_1_13 = 256; [L29] float var_1_14 = 5.75; [L30] float var_1_15 = 8.6; [L31] unsigned char last_1_var_1_7 = 0; [L32] signed short int last_1_var_1_13 = 256; VAL [isInitial=0, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_8=78/5, var_1_9=77/5] [L84] isInitial = 1 [L85] FCALL initially() [L86] COND TRUE 1 [L87] CALL updateLastVariables() [L76] last_1_var_1_7 = var_1_7 [L77] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_8=78/5, var_1_9=77/5] [L87] RET updateLastVariables() [L88] CALL updateVariables() [L61] var_1_8 = __VERIFIER_nondet_double() [L62] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L62] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=77/5] [L63] var_1_9 = __VERIFIER_nondet_double() [L64] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L64] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=161/5, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L65] var_1_10 = __VERIFIER_nondet_double() [L66] 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, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L66] 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, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L67] var_1_12 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L68] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L69] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L69] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=23/4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L70] var_1_14 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L71] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854776000e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=4, var_1_15=43/5, var_1_1=32, var_1_7=0, var_1_9=2] [L72] var_1_15 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L73] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854776000e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L88] RET updateVariables() [L89] CALL step() [L36] COND TRUE (last_1_var_1_13 + ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))) < (last_1_var_1_13 * last_1_var_1_13) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L37] COND FALSE !(last_1_var_1_13 < (last_1_var_1_13 - last_1_var_1_13)) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L45] COND TRUE \read(var_1_12) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=256, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L46] COND TRUE (var_1_14 - var_1_15) >= ((var_1_8 + var_1_10) + var_1_9) [L47] var_1_13 = ((((var_1_1) > (var_1_1)) ? (var_1_1) : (var_1_1))) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=32, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L52] COND TRUE ((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))) <= var_1_10 VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=32, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L53] COND FALSE !(last_1_var_1_7 && (var_1_1 >= var_1_1)) VAL [isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=32, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L89] RET step() [L90] CALL, EXPR property() [L80-L81] return ((((last_1_var_1_13 + ((((last_1_var_1_13) > (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))) < (last_1_var_1_13 * last_1_var_1_13)) ? ((last_1_var_1_13 < (last_1_var_1_13 - last_1_var_1_13)) ? ((last_1_var_1_13 != (((((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) < 0 ) ? -((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13))) : ((((last_1_var_1_13) < (last_1_var_1_13)) ? (last_1_var_1_13) : (last_1_var_1_13)))))) ? (var_1_1 == ((unsigned short int) last_1_var_1_13)) : 1) : 1) : (var_1_1 == ((unsigned short int) last_1_var_1_13))) && ((((((var_1_8) < (var_1_9)) ? (var_1_8) : (var_1_9))) <= var_1_10) ? ((last_1_var_1_7 && (var_1_1 >= var_1_1)) ? (var_1_7 == ((unsigned char) 0)) : 1) : (var_1_7 == ((unsigned char) var_1_12)))) && (var_1_12 ? (((var_1_14 - var_1_15) >= ((var_1_8 + var_1_10) + var_1_9)) ? (var_1_13 == ((signed short int) ((((var_1_1) > (var_1_1)) ? (var_1_1) : (var_1_1))))) : (var_1_13 == ((signed short int) var_1_1))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=32, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L90] RET, EXPR property() [L90] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=32, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_13=256, last_1_var_1_7=0, var_1_10=3, var_1_12=1, var_1_13=32, var_1_14=4, var_1_15=5, var_1_1=32, var_1_7=0, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.2s, OverallIterations: 6, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 493 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 476 mSDsluCounter, 1198 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 916 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 471 IncrementalHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 282 mSDtfsCounter, 471 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 419 GetRequests, 339 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=4, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 260 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 23.0s InterpolantComputationTime, 379 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 373 ConstructedInterpolants, 0 QuantifiedInterpolants, 1593 SizeOfPredicates, 24 NumberOfNonLiveVariables, 739 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 561/588 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 [2023-11-19 07:54:06,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/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_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53ac7479a950235157217cca437cf6f6e0f377d0e27ff61b959bf8258dd5b0ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:54:09,054 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:54:09,180 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:54:09,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:54:09,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:54:09,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:54:09,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:54:09,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:54:09,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:54:09,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:54:09,255 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:54:09,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:54:09,256 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:54:09,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:54:09,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:54:09,259 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:54:09,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:54:09,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:54:09,260 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:54:09,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:54:09,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:54:09,262 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:54:09,263 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:54:09,263 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:54:09,264 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:54:09,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:54:09,265 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:54:09,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:54:09,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:54:09,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:54:09,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:09,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:54:09,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:54:09,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:54:09,269 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:54:09,269 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:54:09,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:54:09,270 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:54:09,270 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:54:09,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:54:09,271 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:54:09,272 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:54:09,272 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_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53ac7479a950235157217cca437cf6f6e0f377d0e27ff61b959bf8258dd5b0ad [2023-11-19 07:54:09,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:54:09,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:54:09,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:54:09,783 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:54:09,783 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:54:09,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i [2023-11-19 07:54:13,265 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:54:13,573 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:54:13,573 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i [2023-11-19 07:54:13,584 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/data/1c14bc2c6/e1eeeb78941f4d61aec39cc1d11f769b/FLAGc5d1f8b1d [2023-11-19 07:54:13,600 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/data/1c14bc2c6/e1eeeb78941f4d61aec39cc1d11f769b [2023-11-19 07:54:13,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:54:13,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:54:13,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:13,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:54:13,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:54:13,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:13" (1/1) ... [2023-11-19 07:54:13,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59315369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:13, skipping insertion in model container [2023-11-19 07:54:13,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:54:13" (1/1) ... [2023-11-19 07:54:13,652 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:54:13,854 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_244fbc10-62b1-4f55-a1b9-71e9f7590678/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i[913,926] [2023-11-19 07:54:13,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:13,971 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:54:13,990 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_244fbc10-62b1-4f55-a1b9-71e9f7590678/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-21.i[913,926] [2023-11-19 07:54:14,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:54:14,068 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:54:14,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14 WrapperNode [2023-11-19 07:54:14,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:54:14,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:14,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:54:14,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:54:14,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,161 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2023-11-19 07:54:14,162 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:54:14,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:54:14,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:54:14,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:54:14,178 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,190 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:54:14,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:54:14,229 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:54:14,229 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:54:14,230 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (1/1) ... [2023-11-19 07:54:14,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:54:14,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:54:14,276 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:54:14,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:54:14,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:54:14,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:54:14,327 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:54:14,328 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:54:14,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:54:14,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:54:14,467 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:54:14,476 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:54:21,022 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:54:21,032 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:54:21,032 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:54:21,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:21 BoogieIcfgContainer [2023-11-19 07:54:21,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:54:21,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:54:21,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:54:21,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:54:21,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:54:13" (1/3) ... [2023-11-19 07:54:21,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfd5b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:21, skipping insertion in model container [2023-11-19 07:54:21,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:54:14" (2/3) ... [2023-11-19 07:54:21,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfd5b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:54:21, skipping insertion in model container [2023-11-19 07:54:21,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:54:21" (3/3) ... [2023-11-19 07:54:21,065 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-21.i [2023-11-19 07:54:21,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:54:21,092 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:54:21,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:54:21,173 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@378600ad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:54:21,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:54:21,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:54:21,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 07:54:21,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:21,190 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:21,191 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:54:21,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:21,197 INFO L85 PathProgramCache]: Analyzing trace with hash -510096507, now seen corresponding path program 1 times [2023-11-19 07:54:21,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:21,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996433942] [2023-11-19 07:54:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:21,218 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 [2023-11-19 07:54:21,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:21,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:54:21,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:54:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:21,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:54:21,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:21,652 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 07:54:21,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:21,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:21,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996433942] [2023-11-19 07:54:21,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996433942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:21,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:21,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:54:21,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189797025] [2023-11-19 07:54:21,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:21,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:54:21,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:21,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:54:21,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:54:21,725 INFO L87 Difference]: Start difference. First operand has 39 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 30 states have internal predecessors, (41), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:54:21,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:21,773 INFO L93 Difference]: Finished difference Result 71 states and 111 transitions. [2023-11-19 07:54:21,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:54:21,777 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2023-11-19 07:54:21,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:21,786 INFO L225 Difference]: With dead ends: 71 [2023-11-19 07:54:21,787 INFO L226 Difference]: Without dead ends: 35 [2023-11-19 07:54:21,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:54:21,797 INFO L413 NwaCegarLoop]: 48 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, 48 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 [2023-11-19 07:54:21,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:54:21,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-19 07:54:21,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-19 07:54:21,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 26 states have internal predecessors, (34), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:54:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2023-11-19 07:54:21,866 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 53 [2023-11-19 07:54:21,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:21,867 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2023-11-19 07:54:21,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-19 07:54:21,868 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2023-11-19 07:54:21,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 07:54:21,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:21,873 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:21,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:54:22,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:54:22,080 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:54:22,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:22,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1104841853, now seen corresponding path program 1 times [2023-11-19 07:54:22,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:22,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674613490] [2023-11-19 07:54:22,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:22,082 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 [2023-11-19 07:54:22,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:22,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 07:54:22,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_244fbc10-62b1-4f55-a1b9-71e9f7590678/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 07:54:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:22,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:54:22,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:22,842 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-19 07:54:22,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:22,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:22,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674613490] [2023-11-19 07:54:22,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674613490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:22,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:22,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:54:22,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279983753] [2023-11-19 07:54:22,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:22,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:54:22,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:22,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:54:22,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:54:22,859 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-19 07:54:25,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:54:27,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []